Dissertations / Theses: 'Shift and night work'

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Buxton, Sandra. "Shift work : an occupational health and safety hazard /." Access via Murdoch University Digital Theses Project, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040302.154645.

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Swartz, Beryldene Lucinda. "Experiencing night shift nursing: a daylight view." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&amp.

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This study focused on nurses who work the night shift, and on some of the aspects of their lives. The objectives of the study were to identify and describe these experiences with specific reference to the physical, social and work-related effects.

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Apellido, Raymundo Mintac. "Night Shift Work and Weight Gain among Female Filipino Nurses." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4497.

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The research problem is the increasing numbers of overweight and obese nurses working the night shift. Study on overweight and obesity among female Filipino nurses has not been conducted. It was important to conduct a research study among female Filipino nurses to find out if there are statistically significant associations between night shift work and weight gain. The purpose of this correlational and cross-sectional study was to determine if there are statistically significant associations between insufficient sleep, abnormal eating patterns, working 12-hour shifts, years of working night shift, age, stress, marital status, nursing units, decreased physical activity, and level of weight gain among female Filipino nurses working the night shift in the hospital. The theoretical base of this study was the locate evidence, evaluate evidence, assess evidence, and informed decision model. The survey questionnaire was constructed and an online survey through Survey Monkey was used to access nurses via a convenience sampling. Data were analyzed using Spearman correlation, multiple regression, and ANOVA. According to study findings, there were significant associations between insufficient sleep, abnormal eating patterns, marital status, 12-hour shifts, number of years working on night shift, and increased in body mass index. The implications for social change include information that nurses can use to better understand the negative implications of night shift work on health. At the organizational level, this study provides information for administrators and nursing leaders that might facilitate change in policies by improving working conditions for nurses.

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Okundolor, Sunday Iken. "Promoting Nurses Management of Night Shift Sleepiness." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/6466.

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Nurses are largely unaware of the problems of night-shift-nurse sleepiness and available strategies to manage night-shift sleepiness. The purpose of this project was to examine nurses' self-perception, awareness of sleepiness, and current strategies to manage this problem in the emergency medicine department of a major academic hospital in the western United States. The validated de-identified Karolinska Sleepiness Scale (KSS) was used to measure the prevalence and intensity of night shift nurses' sleepiness prior to the development of an educational program on strategies to manage sleepiness. Of the 164 registered nurses surveyed, 72 (43.9%) reported sleepiness greater than 7 on the KSS. An educational program was developed and evaluated by a panel of 6 experts who were selected on their clinical, educational, quality improvement, and research in sleep studies. Expert reviews indicated that the education program was 100% relevant, appropriate, and understandable, and provided adequate information on the topic with no recommended changes. The education program was presented to 16 night shift nurses with a pre/posttest survey completed by 14 nurses. Results indicated that participating nurses increased their knowledge of managing strategies for sleepiness from 69% (agree or strongly agree) preintervention to 92% postintervention. Postintervention, there was a 50% increase in the number of nurses who reported benefits from the education intervention. The findings of this project contribute to positive social change by improving nurses' health and quality patient care by advancing nurses' awareness of night shift sleepiness and countermeasure management strategies.

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Munton, Lynne Kerry. "The effects of night work and task diversification on efficiency of performance." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1018253.

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This study investigated the effects of night work on performance efficiency. Night work is generally acknowledged to impair performance, yet much research has contradicted this assertion. The feasibility of including brief periods of physical activity to stimulate arousal within mentally demanding work shifts was also evaluated. Thirty six postgraduate volunteers were assigned to either the cognitive tasks (CT) or cognitive and motor tasks (CMT) group. All subjects performed three psycho-motor tests, using the Vienna Test System, at midday and midnight. The CMT group performed a short cycling activity before each test. Heart rate responses served as physiological measures, the Perceived Strain Scale was used to quantify individual perceptions of strain and performance efficiency was assessed in terms of speed and accuracy. Although several trends were apparent, no significant differences (p < 0.05) were revealed with respect to the three performance variables between the midday and midnight test sessions, or between the CT and CMT subjects, other than the higher heart rates recorded in the CMT group. In summary, neither time of day nor physical activity were found to affect performance within the controlled environment of this study.

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Blood, Mary Lee. "A comparison of circadian rhythms in day and night shift workers." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/3991.

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The present study examined whether and to what extent physiological rhythms of long-term . night workers become adapted to their unconventionally scheduled hours of work and sleep and how the degree of adaptation would be reflected in ratings of sleep quality, mood, anxiety, energy and satisfaction.

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Anderson, Valerie Valdez. "The experience of night shift registered nurses in an acute care setting a phenomenological study /." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/anderson/AndersonV0510.pdf.

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The night shift environment in acute care nursing is a unique and poorly understood entity. Retention of experienced nurses on the night shift is vital to the provision of quality care and the nurturing of new nurses. The goal of this phenomenological study was to elicit a description of the lived experience of experienced night shift nurses with the goal of gleaning information that would improve the work environment on the night shift. Five experienced night shift RNs participated in self-directed interviews, responding to the question, "Can you please share your experiences as an RN working the night shift?" The interview data were analyzed using Giorgi's phenomenological method to arrive at a typical and essential structure of the experience. The results revealed negative and positive aspects of working a night shift schedule. Negative aspects of night shift nursing included a feeling of being misunderstood and undervalued professionally and personally. Inadequate resources, on the night shift, was also identified as a barrier to nurse satisfaction, and negatively influencing the provision of quality nursing care and quality orientation of new nurses. Negative physiologic influences of night shift centered around poor quality and quantity of sleep. While these negative influences were consistently presented by all participants, so were the positive aspects of night shift nursing. The participants of this study were strongly invested in the teamwork they experienced within their night shift work environment. Interdependent team spirit was found to have arisen in response to the lack of resources experienced by these nurses. This teamwork, along with the other positive aspects, such as autonomous practice and positive effects on personal time, were seen as incentives for these experienced nurses to continue nursing on the night shift. Nursing administration may be able to utilize the information gleaned from this study to optimize the night shift work environment, and subsequently, increase retention of the experienced nurse. Further research is needed to clarify: the needs of experienced nurses in varying clinical settings, the needs of inexperienced night shift nurses, and the representativeness of the data found in this study to larger numbers of nurses.

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Morris, Christopher J. "Relationships between body mass index, appetite regulation and physical activity during shift-work and night-work." Thesis, Liverpool John Moores University, 2010. http://researchonline.ljmu.ac.uk/5955/.

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Approximately 3.6 million individuals in the UK are involved in a type of shift-work which impinges on the normal nocturnal sleeping period. This prevalence has significance considering that shift-work is a risk factor for many health problems including cardiovascular disease, breast cancer, metabolic syndrome, obesity and gastrointestinal symptoms (e.g., constipation). These health inequalities are generally under-researched. Past studies have also focused on chrono-biological related reasons (e.g., exposure to light at night) rather than lifestyle factors. Physical activity is reported to be beneficial for many aspects of day-worker's health. However, there is a dearth of knowledge regarding the relationship between physical activity, adiposity and gastrointestinal symptoms in shift-workers. Thus, the aim of this thesis was to explore, using a multidisciplinary approach, the relationships between body mass index (8M I), appetite regulation, gastrointestinal health and physical activity during shift-work and night-work. In the first study (presented in Chapter 3), a cross-sectional study design was adopted to explore the relationships between 8MI, gastrointestinal symptoms and leisure-time physical activity (LTPA) in shift-workers. The data from this study indicated that the least active shift-workers had the highest mean 8MI, 73% of these workers being overweight or obese. Nevertheless, dose-response effects of LTPA on 8MI were not evident. A positive relationship was present between physical activity level and frequency of heartburn but not other digestive symptoms (e.g., diarrhoea). In the studies presented in Chapters 4 and 5, the effects of an acute bout of evening exercise upon appetite-related factors were investigated during a simulated night-shift. In Chapter 4, the protocol was characterised by a feeding schedule typically adopted by many shift-workers, Le. eating smaller but more frequent portions of food rather than one large meal. In contrast, the protocol in Chapter 5 was characterised by a feeding schedule designed to be more in line with what day-workers do during their work-period, i.e. eating one larger meal 3-4 h after the work period has started. Findings from Chapter 4 indicate that, unlike after diurnal exercise, circulating concentrations of acylated ghrelin and leptin during a night-shift are increased by prior evening exercise. However, hunger during the night-shift was unaffected by prior evening exercise in this study. In the subsequent experiment involving one large meal, nocturnal concentration of serum leptin was increased by exercise but there was little effect on plasma acylated ghrelin level. Again, night-shift hunger was unaffected by prior evening exercise. Taken together, these findings indicated that exercise mediates different effects on appetite-related hormones at night and that meal frequency is an important factor which regulates the response of acylated ghrelin, but not leptin. Despite the above findings, mean night-shift hunger was unaffected by evening exercise, regardless of meal frequency. This implies that a compensatory increase in food intake during the night-shift in response to prior exercise may not occur, thus supporting the notion that exercise can mediate a negative energy balance which might attenuate body mass gain in shift-workers. The study presented in Chapter 6 determined the within-subject correlations between factors that regulate appetite in the post-exercise period. This study explored how circulating levels of acylated ghrelin and leptin are controlled at night following evening exercise. The findings from Chapter 6 suggested that exercise related changes in plasma acylated ghrelin concentration are negatively correlated to those in circulating levels of glucose and insulin, but not those in non-esterified fatty acids (NEFA) or triglyceride. The aforementioned Significant correlations were not reported in daytime studies. Post-exercise alterations in serum leptin level were also found to be related to those in circulating levels of insulin but not those in glucose, NEFA or triglyceride. The exercise-related alterations in circulating level of acylated ghrelin, but not leptin were correlated with the changes in hunger during the post-exercise period throughout the night. In the study presented in Chapter 7, a randomised controlled trial was employed to examine the effect of altering (via motivational interviewing over a three month period) a shift-worker's physical activity and dietary habits on their adiposity and gastrointestinal symptoms. The findings presented in Chapter 7 indicate that a 12-week motivational interviewing intervention which focused upon increasing physical activity level and improving dietary habits significantly attenuated an increase in 8MI, but not waist-to-hip ratio or frequency of digestive symptoms in UK shift-workers. In summary, this thesis makes a significant contribution to the field of physical activity and shift-work. This thesis demonstrates that relationships between 8MI, appetite regulation, gastrointestinal health (l.e., heartburn) and physical activity do exist during shift-work and night-work.

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James, Francine O. "Circadian adaptation to full-time night shift work with bright light intervention regimen." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31243.

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The primary consequence of night shift work is a misalignment of the endogenous circadian pacemaker with the inverted sleep-wake cycle. This study evaluated the efficacy of a judicious schedule of light exposure on circadian adaptation to night work. Fifteen night shift workers (mean age +/-S.E.M.: 41.8 +/- 1.8 years) were studied for 3 weeks in their work environments under one of two experimental conditions. Treatment group participants underwent an intervention including bright light in the workplace, while control group participants were studied in their habitual light environments. The efficacy of the intervention was evaluated in the laboratory via constant routines. Following the intervention, treatment group subjects displayed a mean phase delay of (+/-S.E.M.) -9.32 +/- 1.06 hours and full entrainment to the night-oriented schedule while control group subjects displayed a phase delay -4.09 +/- 1.94 hours and a partial entrainment (F(1,30) = 11.33, p = 0.002). The results of this study suggest a means of alleviating the difficulties associated with night shift work with control of the overall pattern of light exposure.

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鄭淑慧 and Shuk-wai Sherry Cheng. "Night shift work and risk of breast cancer in women: a literature review." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47560046.

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Background Night shift work is inevitable for maintaining continuous services in different sectors e.g. healthcare, financial, transport and service sectors. Night shift work increases exposure of light at night. Exposure of light at night suppresses production of a neurohormone melatonin. Melatonin has shown potential cancer protective action in animal experiments. Melatonin deficiency is suggested to be related to the development of various cancer especially breast cancer. Breast cancer incidence in Hong Kong is rising. Particular concern about association between night shift work and breast cancer is raised. Objective To collect evidence from studies of other countries with study populations of different professions and to evaluate the relationship between night shift work and breast cancer Method MEDLINE was searched to identify publications, limited to English articles, from 1973 to May 2011. Search terms include (circadian rhythm or night work or night shift or shift work or work schedule tolerance) and (cancer or neoplasm or neoplasia) and (risk or rate or incidence). No restriction was set to the publication type. Results Altogether 343 titles retrieved from MEDLINE search. Finally, 8 primary observational studies that met inclusion criteria were identified for this review. Of these, two were prospective cohort studies, one was retrospective cohort study, two were nested case-control studies and three were case-control studies. Most of the study had crude exposure assessment of night shift work, in which four studies relied on group level of exposure probability instead of individual exposure information. Six of eight studies showed positive results on the association of night shift work and breast cancer in women. Three studies found that risk of breast cancer was increased significantly for those who had engaged in night shift work in a long duration i.e. more than 20-30 years, but they were all conducted in populations of same occupational group i.e. nurse and only a moderate increase of breast cancer risk was found. The results were subject to confounding and bias. No consistent results were found for effect of shorter duration of night shift work on risk of breast cancer. Conclusion Based on the studies included, there is suggestive evidence of an association of night shift work and breast cancer. Further studies on this are needed. Involvement of population of different occupational groups, controlling confounder of hormone use and conducting exposure assessment with high reliability using individual information instead of that from group are suggested.
published_or_final_version
Community Medicine
Master
Master of Public Health

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Lombard, Wesley Ross. "The effects of booster breaks during a sedentary night shift on physiological, psychomotor, psycho-physiological, and cognitive performance over a 3 night shift habituation phase." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005194.

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Despite extensive research into shift work, workers working under rotating shift conditions are still plagued by the effects of the desynchronisation resulting from working against their natural circadian rhythms. Additionally, modern industries are shifting towards tasks requiring greater cognitive demand with less manual labour incorporated into the tasks. Research into operator based tasks, and hence those of a sedentary cognitive base both during day and night shifts, has been focusing on the effectiveness of the standard rest/break schedule. Research indicating that the standard rest break schedule is often ineffective in eliminating operator discomfort and performance deterioration, with these affects argued to be more pronounced during a night shift schedule. Therefore current research set out to investigate alternative rest break schedules, incorporating a short bout of physical activity and stretching exercises which are proposed to enhance performance and subjective mood, while eliminating operator discomfort for sedentary based cognitive tasks. Three conditions were tested during a three day habituation shift cycle within a laboratory, incorporating two night shift groups (control and experimental) and a control day shift group. Twelve subjects made up each group, with the two night shift groups completing the shift schedule together. The control groups followed a typical 8 hour shift schedule while the experimental group performed a booster break (exercise and stretches) activity for 7.5 minutes every hour during the night shift schedule. Over the course of the shift, subjects completed a battery of six tests providing data on physiological measurements (heart rate and temperature), performance criteria (reaction time responses, memory and neurobiological) and subjective measures. Responses obtained for all the different parameters measured indicated a strong circadian influence for the majority of the variables, indicating the course of natural down regulation within physiological and performance criteria over the night shift. The booster break significantly improved reaction time performance, subjective ratings and resulted in a high sustainable activity level. Day shift comparisons indicating that within subjective measures and reaction time performance, the booster break resulted in similar responses to those of the day shift workers, while the control night shift groups reported significantly lowers results. Additionally, the booster break had positive influences during the circadian nadir, significantly improving parameters of performance and subjective ratings of sleepiness. The results of this study indicating which variables are strong predictors and indicators of the oscillations in performance and subjective ratings due to the circadian changes. The booster break interventions had positive effects on subjective ratings and reaction time performance, while also being argued to decrease the burden placed on the cardiac system as a result of increased sympathetic tone during the night shift, while additionally resulting in similar responses to those of day shift workers. Further studies are required, however, to provide conclusive evidence particularly within a working situation over a longer shift schedule.

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Papantoniou, Kyriaki 1983. "Cancer risk and hormonal changes in night shift workers." Doctoral thesis, Universitat Pompeu Fabra, 2014. http://hdl.handle.net/10803/346932.

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Recent human and animal data indicate that night shift work might increase the risk for cancer. Epidemiologic evidence is limited and has mostly focused on breast cancer while underlying mechanisms are still poorly understood. The main aim of this thesis was to evaluate the association between night shift work and breast and prostate cancer risk in a population based multi-case-control study in Spain and study possible underlying mechanisms including the disruption of the daily production of melatonin and sex hormones. Having ever worked permanent or rotating night shift were associated with an increased but not statistically significant risk for breast cancer compared to day workers; Risk increased with duration of exposure and was higher among evening chronotypes. Risk was higher for tumors with worse prognosis. Night shift workers had significantly lower 6-sulfatoxymelatonin levels and higher androgens and progestagens, while smaller differences were found for estrogens. Lower melatonin and higher sex hormone levels among night shift workers are two possible mechanisms that might explain the increased risk of hormone-related tumors.
Evidencia reciente en humanos y animales indica que el trabajo nocturno puede aumentar el riesgo de cáncer. La evidencia epidemiológica está limitada y sobre todo se ha enfocado en el cáncer de mama, mientras los mecanismos que se involucran no se han estudiado lo suficiente. El objetivo principal de esta tesis era de evaluar la asociación entre el trabajo nocturno y el cáncer de mama y próstata en un estudio poblacional de casos y controles en España y estudiar posibles mecanismos como la disrupción de la producción de la melatonina y las hormonas sexuales. Haber trabajado de noche de modo permanente o rotativo estaba asociado con un mayor riesgo de padecer cáncer de mama y próstata, sin embargo las diferencias no eran estadísticamente significativas. El riesgo era mayor para trabajadores de noche con exposiciones más largas y para los que tenían un cronotipo vespertino. Se observo un mayor incremento de riesgo de cáncer para los tumores con peor pronóstico. Los trabajadores de noche tenían los niveles de melatonina más bajos y los andrógenos y progestágenos más altos que los trabajadores de día. La supresión de la melatonina y el incremento de las hormonas sexuales son dos mecanismos que pueden explicar en parte el incremento del riesgo de tumores hormono-dependientes

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Grundy, Anne Louise. "Determinants and methods of assessment of melatonin levels among rotating shift nurses." Thesis, Kingston, Ont. : [s.n.], 2008. http://hdl.handle.net/1974/1264.

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Sizane, Nongazi Florinah. "Night shift working mothers and their adolescent children's mutual perception of their relationships / Nongazi Florinah Sizane." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4996.

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Night shift or non-standard work continues to grow throughout the economy (Beers, 2000). Women's roles in society are changing as they find themselves having to join the work force due to economic need. South African women most of whom are mothers are no exception in this regard. Many of these mothers are obliged to do night shift work. Sectors like manufacturing and public-oriented industries often use shift work to ensure efficient continuous operation and uninterrupted response to the needs of society. This article aims to explore the role that night shift work plays in the relationships between mothers and their adolescent children; whether the mutual perceptions of night shift working mothers and their adolescent children regarding their relationships differ from those of non-shift working mothers and their adolescent children; and whether there is a difference between the night shift working group and the non-shift working group with regard to the perceptions of their relationships. Lastly, the article aims to determine the reliability of the measuring instrument that was used in this study, namely the Parent-Adolescent-Relationship-Questionnaire (PARQ). Available literature shows that shift work has a negative impact on health, for example stress-related illnesses due to lack of sleep (Akerstedt, 1998, 2003; Fletcher & Dawson, 1997, 2001; Presser, 2005). Family life is also affected and relationship difficulties have been reported (Chang, Wang, & Liu, 1993; Holland, 2004; Grosswald, 2003, 2004; Presser, 1995, 2000, 2003, 2005), while shift work is seen as a threat to family cohesion. Adolescence is a critical developmental stage and mothers have an important role to enhance healthy adolescent development in terms of issues like self-identity and autonomy. The mother's unusual working hours can have a negative impact on the mother-adolescent relationship. A cross-sectional design was used in this study. There were two groups: 35 night shift working mothers and their adolescent children, and 35 non-shift working mothers and their adolescent children. Participants were requested to complete a PARQ questionnaire. Data was analysed by means of SAS and SPSS programmes. Descriptive statistic methods such as central tendency, mean and median, variability, range and standard deviation, skewness and kurtosis were used to explore data. Independent and dependent t-tests were used to determine differences between the mean scores of the night shift working and non-shift working mothers and their adolescent children. The effect size was used to provide an objective measure of a practical effect. The findings indicate that PARQ is a reliable measure for this study as it showed good internal consistency. The skewness and kurtosis indicate acceptable normality. Adolescent children of non-shift working mothers perceive communication with their mothers as more efficient than adolescent children of night shift working mothers, and there is an indication of a significant practical effect. Adolescent children of non-shift working mothers have a more positive perception of the Mothers' Problem Solving than adolescent children of night shift working mothers, with indications of a significant practical effect between the two groups. There is no statistically significant difference between and no significant practical effect in any of the variables concerning the two groups of mothers, as reflected in Table 4. However, Table 5 shows a difference between the perceptions of the two groups of adolescents. There is a statistically significant difference between Cohesion for non-shift working mothers and for their adolescent children, with an indication of a significant practical effect. Tables 5 and 6 show a statistically significant difference between Conventionalisation of the two groups, with an indication of a significant practical effect. Both night shift working and non-shift working mothers have a more positive perception of Conventionalisation than their adolescent children. Findings also indicate a statistically significant difference in Global Distress between night shift working mothers and their adolescent children, with an indication of a significant practical effect. Night shift working mothers experience higher levels of Global Distress than their adolescent children. For both groups -night shift working mothers and their adolescent children; and non-shift working mothers and their adolescent children there is a statistically significant difference between the mothers' and the adolescents' perception of Ruination. This study has several limitations and it is recommended that future studies use a larger sample size and include longitudinal studies. Future research should also explore the construct of the night shift working mother's parenting style and their coping strategies. Father-adolescent relationships should also be a research focus. In some families in both groups, the study created a platform for dialogue between adolescents and their mothers.
Thesis (M.A. (Clinical Psychology))--North-West University, Potchefstroom Campus, 2010.

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Fullick, Sarah. "Behavioural and biological relationships between leisure-time physical activity and health outcomes during shift- and night-work." Thesis, Liverpool John Moores University, 2010. http://researchonline.ljmu.ac.uk/5974/.

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Shift-work is increasingly common in society and is associated with a number of health inequalities. The health effects of shift-work can include a redudion in quality and quantity of sleep, insomnia, chronic fatigue, anxiety and depreSSion,decreased vigilance, metabolic syndrome, adverse cardiovascular (especially blood pressure), gastrOintestinal effects and reproductive effects in women. Shift-work is also associated with disturbances to a workers domestic and social life. Physical activity is known to either prevent or alleviate these health inequalities in those with 'normal diurnal' lifestyles such as day-workers. However, shift-work generally decreases opportunities for physical adivity. Moreover, the favourable affects of physical activity on such health inequalities have not been confirmed in shift-workers. The studies in the present thesis are designed to examine the associations between shift-work and physical activity covering a wide range of physiological and psycho-social variables in shift-workers. The first descriptive study was designed to provide the first detailed and multi-researchstrategy examination of LTPA and its correlates in shift-workers. One hundred and sixty one shift-workers partiCipated in the initial cross-sectional study. A cohort of ten of these partiCipants also volunteered for further diary- and inteNiew-based studies. PartiCipants completed the SSI together with a LTPA questionnaire. Gender, job type, age and shift-work experience were explored as correlates of LTPA. The cohort also completed a 7-day diary and wore an accelerometer for assessment of activity counts during work, leisure, and bedtime when working each shift-type (days, nights and rest). Participants also completed a semi-strudured email-administered interview. The total energy expenditure per week in LTPA of male shift-workers was found to be twice that of women. Midwives recorded the lowest LTPA. Firefighters reported the most LTPA. The time spent out of bed during night shift days was 4-h higher compared with rest days. Data from this study indicated that LTPA is generally low amongst shift-workers, the majority of whom are overweight or obese. Jobtype and gender are much more influential on LTPA than age or experience. Shift-workers spend more of their time on rest days in bed. The second descriptive study was designed to explore the relationships between coping strategies adopted by shift-workers and their leisure-time energy expenditure. The importance of coping strategies has been highlighted in previous research. Ninety-five participants completed an adapted version of the completed the SSI together with a LTPA qUestionnaire. Predictors of age, time spent in shift-work, gender, marital status and the various shift-work coping indices were explored with step-wise multiple regression. Leisuretime energy expenditure over a 14-day period was entered as the outcome variable. Gender (p < 0.023) and time spent in shift-work (p < 0.051) were found to be predictors of energy expenditure, with the most experienced, male shift-workers expending the most energy during leisure-time. Overall 'disengagement' coping scores from the SSI were positively related to leisure-time energy expenditure (p < 0.054). In males, disengagement of sleep problems (p > 0.086) was found to be negatively correlated to energy expenditure, whereas disengagement of domestic-related problems was found to be positively related to energy expenditure (p < 0.001). These relations were not found in female shift-workers (p > 0.762). These data indicated that experienced male shift-workers participate in the most leisure-time physical activity. These people 'disengage' more from their domestic-related problems, but less from their sleep-related problems. The next laboratory-based study was designed to examine the acute effects of evening exercise and meal frequency on psychophysiological and performance-related variables during a subsequent period of simulated night-work. Nine healthy participants, completed at least two crossover trials beginning at 18:00 h. Between 19:00-20:00 h, participants either rested or exercised at 50%V02peak and then remained awake throughout the night, completing various tasks until 05:15 h. Six participants completed a total of four trials in which they exercised or rested while either one standardized (SOkJlkg) meal at 22:00 h or two smaller (30 kJ/kg) meals at 22:00 and 02:00 h were eaten. Core Body Temperature (Tc), wrist activity, mood, sleepiness, arousal, self-chosen work-rate, and reaction time were all measured throughout the simulated night-shift. Following exercise, Tcwas Significantly lower throughout the night-shift compared with no prior exercise (95% Cl = 0.00 to 1.01°C), even though wrist activity was higher and sleepiness was lower after exercise. Self-chosen workrate was significantly higher (95% Cl = 20 to 43 W) and reaction time faster during the nightshift that followed exercise. Reaction time and alertness were worst when only 1 meal was ingested during the night-shift (p <0.04). These data indicate that a single bout of evening exercise can improve sleepiness as well as mental and physical performance during a subsequent simulated night-shift ... The findings from the studies in this thesis indicate that many of the short-term health benefits of exercise are apparent in contexts of shift- and night -work. The relatively small final intervention study demonstrates the potential utility of an individualised lifestyle intervention based on motivational interviewing for shift-workers.

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Charles, Kristin Elizabeth. "Effects of shift work on employee retention : an examination of job satisfaction, organizational commitment, and stress-based explanations." PDXScholar, 2004. https://pdxscholar.library.pdx.edu/open_access_etds/4026.

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Shift work is becoming increasingly prevalent in our society, with 17% of the full-time work force and 36% of the part-time work force working non-standard shifts (Beers, 2000). The goal of this study was to explore the relationships between several shift work variables and retention of employees working in a retail organization that is open 24-hours a day. Results indicated no significant differences between workers in fixed versus mixed shift schedules on job satisfaction or role stress. Contrary to my hypothesis, mixed shift workers reported higher levels of commitment and remained with the organization longer than fixed shift workers. As predicted, night shift workers reported lower levels of job satisfaction and organizational commitment than evening workers. However contrary to predictions, there were no significant differences between morning and night shift workers. Supervisor support did not moderate the relationship between shift work and commitment, satisfaction, or role stress. However is was a significant moderator of the relationship between day versus evening shift and role stress, with individuals working evening shifts and perceiving high levels of supervisor support remaining with the organization the longest.

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Maurício, Pedro Miguel Costa. "O trabalho por turnos e suas consequências nos trabalhadores: o caso de técnicos de reparação/manutenção num centro de finishing." Master's thesis, Instituto Politécnico de Setúbal. Escola Superior de Ciências Empresariais, 2016. http://hdl.handle.net/10400.26/17327.

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Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Segurança e Higiene no Trabalho
A presente dissertação, elaborada no âmbito do Mestrado de Segurança e Higiene no Trabalho, tem por finalidade conhecer as perceções dos trabalhadores acerca do trabalho por turnos e no impacto que este tem neles próprios. Para a obtenção dessa informação, foi entregue um questionário que incluía o Standard Shiftwork Índex e o Maslach Burnout Inventory conjuntamente, a um grupo (N=15) constituído por Técnicos de Reparação/Manutenção de equipamentos de Impressão e Envelopagem, que trabalham por turnos. Este questionário subdivide-se em subescalas relativas, respetivamente, à Satisfação Global, Qualidade do Sono, Fadiga Crónica, Saúde Física e Bem Estar Psicológico, Ansiedade e Situação Social e Doméstica Os resultados obtidos, evidenciam que os trabalhadores inquiridos apresentam algumas carências acerca da quantidade de horas de sono dormidas, assim como alguma Fadiga Crónica, com sentimentos de cansaço e falta de energia. Em contrapartida, embora cansados e fatigados, os mesmos sentem-se animados e alertas. Na Saúde Física e Mental, alguns dos inquiridos têm alguma perturbação no apetite e/ou sofrem de tensão alta e sentem palpitações anormais no coração. No Bem Estar Psicológico, 80% afirmou que não consegue dormir normalmente, estando preocupado e 46,7% dos trabalhadores têm-se sentido infelizes e deprimidos. Nas respostas da Ansiedade Cognitiva, 20% preocupa-se demasiado acerca de algo sem importância, e 13,3% respondeu que tem pensamentos assustadores entre às vezes e muito. Na Ansiedade Somática, mais de metade costuma suar/transpirar sem temperaturas altas, assim como ter a sensação do coração bater mais rápido e sentir o corpo “nervoso”. Patologias como hipertensão arterial; dores de cabeça; colites; ansiedade crónica; colesterol alto; pedra nos rins; hemorroidas; varizes; dores de costas crónica; ulcera gástrica ou duodenal e depressão, foram observadas nas respostas dadas. Na Situação Social e Doméstica, mais de metade respondeu que o tempo para dedicar-se à família, amigos e outras atividades não é suficiente.
This dissertation, prepared to obtain a Master degree in Health and Safety at Work, aims to obtain information about the possible consequences of shift work on workers. To obtain this information, the workers were given a questionnaire that included the Standard Shiftwork Index and the Maslach Burnout Inventory, to a sample (N = 15) made up of technicians repair / maintenance equipment of Printing and Envelopes, who work on shifts. This questionnaire is divided into subscales: Global Satisfaction, sleep quality, Chronic Fatigue, Physical Health and Wellness Psychology, Social Anxiety and Domestic Situation. The results obtained show that the workers have some shortcomings about the number of hours of sleep, as well as some Chronic Fatigue, with feeling of tiredness and lack of energy. In contrast, although tired and fatigued, they feel excited and alert. In Physical and Mental Health, some of the respondents have some disturbance in appetite and/or suffer from high blood pressure and feel abnormal heart palpitations. In Psychological Welfare, 80% said they cannot sleep normally, when concerned and 46.7% of employees have been feeling unhappy and depressed. In the responses of cognitive anxiety, 20% worries too much about something unimportant, and 13.3% answered that have scary thoughts, between sometimes and a lot. In Somatic Anxiety over half usually sweat/perspire without high temperatures, and having the feeling of the heart beat faster and the body feel "nervous". Diseases like high blood pressure; headaches; colitis; chronic anxiety; high cholesterol; kidney stone; hemorrhoids; varicose veins; chronic back pain; gastric ulcer or duodenal and depression were observed in the answers given. In Social and Domestic Situation, more than half said that the time to devote to the family, friends and other activities is not enough.

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Häggblom, Sofia. "Operationssjuksköterskors upplevelser av att arbeta nattskift : En intervjustudie." Thesis, Karlstads universitet, Institutionen för hälsovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-28505.

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Operationssjukvård krävs under natten för att säkerställa vården och hjälpa patienter inom rimlig tid. Operationssjuksköterskan i operationsteamet arbetar tillsammans med opererande läkare med det kirurgiska tillvägagångssättet, samt ansvarar för patientens perioperativa vård. Syftet med denna intervjustudie var att belysa operationssjuksköterskornas upplevelser av att arbeta nattskift på en operationsavdelning. Halvstrukturerade intervjuer genomfördes med sex operationssjuksköterskor på ett medelstort sjukhus i Sverige, och efter en kvalitativ innehållsanalys av materialet framkom sex kategorier; Nattens ryggrad – teamarbetet, Natten – vårdandets tid, På Natten – alltid redo, Natten blir till dag, Natten – tidens tand samt Nattens charm. Studiens resultat speglade operationssjuksköterskornas upplevelser av att teamarbetet utgjorde grunden för ett patientsäkert arbete under nattskiftet samt att operationssjuksköterskorna fick en förbättrad möjlighet att fokusera på omvårdnaden och kommunikationen med patienten under natten. Det krävdes även konstant handlingsberedskap inför oväntade situationer, och arbetet under natten var under förändring då fler av dagskiftets operationer sköts över till natten. Operationssjuksköterskorna upplevde även att arbetet under natten blev svårare då de blev äldre, men att arbetet under nattskift ändå upplevdes som roligare än dagskiftet. Således kunde det tolkas att nattskiftet hade en inverkan på operationssjuksköterskornas arbete, då arbetet kunde vara fysiskt och psykiskt ansträngande vilket även kunde ha en inverkan på patientsäkerheten. Nattskiftets speciella karaktär och med ett närmare teamarbete resulterande ändå i att arbetet utfördes med kvalitet samt att operationssjuksköterskorna upplevde arbetet som roligare, vilket fick dem att välja att fortsätta arbeta nattskift.

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Davy, Jonathan Patrick. "The impact of a one-hour self-selected nap opportunity on physiological and performance variables during a simulated night shift." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005201.

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Napping has been explored extensively as a means of counteracting the negative effects associated with shift work. A significant amount of this research has focused on the implementation of scheduled naps, with few studies considering flexible nap schemes. The current study therefore aimed to assess the effects of a flexible nap opportunity on the physiological, cognitive, performance, neurophysiological and subjective responses of a group of non shift workers over the course of a three-day simulated night shift regime. Additional foci were the effects of the nap condition on the extent of the circadian adaptation of the subjects to the irregular work schedule and the circadian-related influences associated with being awake during the night. 36 subjects – 18 males and 18 females – were recruited to participate in the current study. The data collection spanned twelve days, during which four, three-day long shift cycles were set up: three night shift cycles and one day shift cycle. During each night shift cycle, three separate experimental conditions were staggered, namely the nap condition, the no nap condition and a booster break condition (a collaborative study that completed the setup). The day shift served as a further comparison. Each cycle comprised of 12 subjects, which meant there were four subjects per condition during each cycle. The shifts were 8 hours in duration, with the no nap group following a standard break schedule evinced in industry. The three breaks taken during the shifts amounted to a total time of 1 hour. The nap group was afforded a 1 hour flexible nap opportunity between 00h00 and 03h00 with no other breaks. Therefore, both conditions had the same amount of work time. During the shifts, subjects performed two simple, low arousal tasks (beading and packing) and completed a test battery roughly every two hours which was comprised of physiological, performance, neurophysiological and subjective measures. It was found that the inclusion of the nap opportunity significantly improved output performance and response time during a low precision, modified Fitts tapping task over the course of three night shifts, relative to no napping. Physiologically, napping resulted in higher heart rate frequency measures by the end of the shifts, which were also accompanied by significant reductions in subjective sleepiness ratings during all iii the night shifts. The nap group’s responses in this case, did not differ significantly from those of the day shift. Both simple reaction time and memory performances improved as a result of the nap inclusion, but only during the third night shift. The majority of the measures included in the research also depicted the effects of the circadian rhythm, which was indicative of the pronounced effect that this natural biological down regulation has on performance during the night. Napping reduced the severity of these effects during beading performance and measures of subjective sleepiness. With regard to habituation, the nap opportunity also resulted in positive changes in the responses of beading performance, high precision response time, simple reaction time and both subjective sleepiness measures, relative to no napping. Sleep diary responses indicated that although sleep length and quality during the day were significantly reduced for both night-time conditions, recovery sleep (length and quality) for the nap group did not differ significantly from the no nap group. The findings of this research indicate that the inclusion of a flexible napping opportunity during the night shift had positive effects on some physiological, performance and subjective responses, and that this intervention is as beneficial as scheduled napping. Specifically, napping resulted in a significantly higher output during the beading task, relative to the no nap group despite the duration of work time being the same. As such the introduction of a flexible, self-selected nap opportunity is a practical, effective and individual-specific means of alleviating the negative effects of shift work, while improving certain performance parameters. Therefore, industries should consider its inclusion in their fatigue management programs. However, contextspecific considerations must be made, with regard work scheduling, individual differences and task demands when implementing such an intervention. This will ensure that its introduction will be well received and in time, lessen the health and work-related decrements associated with shift work.

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Carmona, Luciane Ruiz 1976. "Estudo da variabilidade circadiana da temperatura corporal e ciclo vigília-sono do estudante trabalhador noturno." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309258.

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Orientador: Milva Maria Figueiredo De Martino
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
Made available in DSpace on 2018-08-19T23:21:59Z (GMT). No. of bitstreams: 1 Carmona_LucianeRuiz_D.pdf: 4020231 bytes, checksum: 3a495b39346f1f0920874ed134289dec (MD5) Previous issue date: 2011
Resumo: Introdução: Devido à crescente industrialização da sociedade, torna-se cada vez mais comum o trabalho em turnos, bem como o desenvolvimento do trabalho noturno, porém com pronunciado efeito negativo no sono, desempenho e saúde. Objetivo: Investigar os padrões do ciclo vigília-sono e a ritmicidade circadiana da temperatura corporal periférica, através das medidas tomadas no punho, do estudante de enfermagem do período diurno que trabalha no turno noturno. Método: Estudo longitudinal descritivo, com enfoque quantitativo, em que participaram 27 sujeitos adultos, auxiliares e técnicos de enfermagem que trabalhavam no turno noturno, e que eram alunos do curso de graduação em Enfermagem de uma faculdade particular do interior paulista, no período diurno. Foram utilizados os seguintes instrumentos: Ficha de Identificação, Questionário de Indivíduos Matutinos e Vespertinos (HO), Questionário de Sonolência de Epworth, Diário de Sono, durante 32 dias, divididos em período letivo e férias, e um termistor (Thermochron iButton®) no punho da mão não dominante, para verificação de temperatura do punho a cada 30 minutos. Resultados: Quanto ao ajuste dos dados de temperatura do punho a uma curva cosseno, com um período de 24 horas, foi verificada ritmicidade significante em 35,3% dos sujeitos no período letivo e em 93,7% dos sujeitos no período de férias, além da existência de ritmos diferentes de 24 horas, como de 12 e 16 horas. A média da amplitude rítmica da temperatura do punho foi menor no período letivo quando comparado ao período de férias. Houve diferença estatisticamente significativa no horário em que ocorreu a acrofase, quando comparado o período letivo sem trabalho e com trabalho (p<0,0001), período de férias sem trabalho e férias com trabalho (p<0,0001). Quanto ao tempo de sono, no período de férias, foi maior quando comparado ao letivo, assim como nos dias sem trabalho e nos dias em que não dormiram imediatamente após o trabalho noturno. Verificou-se diferença significativa quando comparado o tempo de sono no período de férias sem trabalho (8:34h) e período letivo sem trabalho (7:24h), com p<0,0001, e ainda nas férias com trabalho (5:11h) e letivo com trabalho (4:19h), com p=0,0496. Quanto à Meia Fase do Sono (MFS), houve diferença estatisticamente significativa entre os períodos letivo e férias com e sem trabalho. Os sujeitos apresentaram escores de sonolência entre 7,2 e 15,9, com média de 11,4, caracterizando prevalência de sonolência diurna excessiva. Conclusão: Verificou-se redução das horas de sono do estudante trabalhador noturno, devido a necessidade de frequentar as aulas no período matutino. Observou-se a presença de ritmos diferentes de 24 horas, especialmente durante o período letivo, e o deslocamento de fase da temperatura do punho, de acordo com a jornada de trabalho/estudo, com oposição de fase nos dias com trabalho quando comparado aos dias sem trabalho noturno. A maior potência espectral foi verificada no ritmo de 24 horas, tanto no período letivo como durante as férias, confirmando a hipótese de que a região do punho apresenta expressão rítmica bem definida e robusta. Os achados reforçam a ideia de que o estudo favorece o estabelecimento de rotina, porém pouco influencia no deslocamento da temperatura corporal, que demonstrou ser fortemente influenciada pelo trabalho noturno. Semelhantemente à acrofase, a meia fase do sono apresentou grande diversidade nos horários de ocorrência, porém com relação de fase mantida entre os ritmos, nos diferentes momentos do estudo
Abstract: Introduction: Due to the increasing industrialization of society, the work in shifts is becoming increasingly common, as well as the development of night work, although with a pronounced negative effect on the workers sleep, performance and health. Objective: to investigate the patterns of sleep-wake cycle and the circadian rhythmicity of peripheral body temperature, through measures taken at the wrist of nursing students who studies during the day and works on the night shift. Methods: longitudinal descriptive study, with a quantitative approach, involving 27 adult subjects, nursing assistants and technicians who worked in the night shift and were students of undergraduate nursing of a private college in São Paulo State, during the daytime. The following instruments were used: Identification Form, Morningness Eveningness Questionnaire of Horne and Östberg, Sleepiness Questionnaire Epworth, Sleep Diary, for 32 days, divided into school term and school vacations, and a thermistor (Thermochron iButton) on the non-dominant hand wrist to check the temperature of the wrist every 30 minutes. Results: The adjustment of the temperature data of the wrist to a cosine curve, within a 24-hour period, a significant rhythmicity was verified in 35.3% of subjects in the school term and 93.7% of subjects in the vacation period, apart from the existence of different rhythms of the 24 hours such as 12 and 16 hours. The average amplitude of the wrist temperature rhythm was lower in the scholl term when compared to the vacation period. There was a statistically significant difference in the time that the acrophase occurred, when comparing the school term on the days-off and on working days (p<0.0001), school vacation on the days-off and working days (p<0.0001). The sleep time during the school vacation was higher when compared to the school term, as well as on the days off and on the days when the subjects didn't sleep immediately after work. There was a significant difference when comparing the sleep time on the vacation period and days off (8:34) and school term and days off (7:24), p<0.0001, and also on vacation on working days (5:11) and school term on working days (4:19), p=0.0496. The Middle Phase of Sleep (MPS) there was a statistically significant difference between the school and vacation periods on working days and days off. The subjects presented EDS scores between 7.2 and 15.9, averaging 11.4, characterizing the prevalence of excessive daytime sleepiness. Conclusion: It was verified an intensification of the 14 reduction of hours of sleep of the night working student, because of the need to attend classes in the morning. The presence of rhythms different than 24 hours, was observed especially during the school term, and the phase transfer of the wrist temperature, according to the period of work/study, with phase opposition on working days when compared to days off. The greatest spectral power was observed in the 24-hour rhythm, either during school term or vacation, confirming the hypothesis that the region of the wrist shows a well-defined and robust rhythmic expression. The findings reinforce the idea that the study favors the establishment of routine, but has little influence in displacing the body temperature, wich proved to be strongly influenced by the night shift work. Similar to the acrophase, the MPS showed great diversity in times of occurrence, but with a phase relation maintained between the rhythms on the different times of study
Doutorado
Enfermagem e Trabalho
Doutor em Enfermagem

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Chilo, Joel, and Måns Jeppsson. "Kockens arbetsmiljö : – faktorer som kan påverka kockbristen i Sverige." Thesis, Örebro universitet, Restaurang- och hotellhögskolan, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-68735.

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Souza, Renata Vieira de. "Efeito do trabalho em turnos nos hábitos alimentares : uma revisão sistemática." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/179698.

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O trabalho por turnos é definido como aquele realizado fora dos horários considerados “convencionais”, por exemplo: pelo trabalho no turno noturno ou o trabalho de forma contínua, através do revezamento de equipes. Durante as últimas décadas, a proporção de trabalhadores que executam as atividades em escalas de turnos vem aumentando e, com as mudanças nas condições de trabalho, a organização do ambiente social, familiar, dos hábitos de vida e das necessidades básicas desses trabalhadores passou por significativas transformações, que podem causar danos saúde. O desenvolvimento de doenças crônicas não transmissíveis e distúrbios metabólicos em trabalhadores de turnos já é bastante evidenciado na literatura, e os estudos epidemiológicos demonstram associações consistentes entre o trabalho por turnos e a ocorrência de doenças, como obesidade, diabetes e síndrome metabólica. Além da relação entre alterações dos ritmos biológicos, disruptura do sistema circadiano e alterações metabólicas, mudanças comportamentais experienciadas pelos trabalhadores de turnos são apontadas como potenciais fatores de risco adicionais ao desenvolimento de doenças. Dentre as alterações nos hábitos de vida, a alimentação parece ser alterada em decorrência do trabalho por turno. Mudanças nos horários de sono, vigília, da atividade laboral, bem como na disponibilidade de alimentos e tempo para realização das refeiçoes em locais adequados, são fatores determinantes nas escolhas alimentares desses indivíduos. Ainda que estudos voltados à avaliaçao da alimentação de trabalhadores de turnos tenham sido propostos e bastante discutidos na literatura, a real influência do turno de trabalho nos hábitos alimentares é pouco elucidada. Assim, o objetivo desse trabalho foi revisar sistematicamente os resultados de estudos que avaliaram os hábitos alimentares de trabalhadores de turnos, de forma a esclarecer como o turno de trabalho influencia, positiva ou negativamente na alimentação. A sumarização de evidências permite a elaboração de condutas e estratégias nutricionais específicas a esse grupo de risco. Além disso, destaca aspectos importantes a serem considerados no desenvolvimento de futuros estudos, visando contribuir com a qualidade das informações obtidas.
Shift work is defined as the one performed outside the "conventional" hours, for example by working the night shift or working continuously through the team relay. Over the last few decades, the proportion of workers performing turn-based activities has been increasing and, with changes in working conditions, the organization of the social, family, living, and basic needs of these workers has changed significantly which can cause health damage. The development of chronic noncommunicable diseases and metabolic disorders in shift workers is already well documented in the literature, and epidemiological studies demonstrate consistent associations between shift work and the occurrence of diseases such as obesity, diabetes and metabolic syndrome. In addition to the relationship between changes in biological rhythms, disruption of the circadian system and metabolic alterations, behavioral changes experienced by shift workers are indicated as potential additional risk factors for the development of diseases. Among the changes in life habits, food habits seems to be altered as a result of shift work. Changes in sleep schedules, wakefulness, labor activity, as well as food availability and time to make meals in appropriate places, are determining factors in the food choices of these individuals. Although studies aimed at evaluating the feeding of shift workers have been proposed and discussed in the literature, the real influence of work shift on eating habits is little elucidated. Thus, the objective of this study was to systematically review the results of studies that evaluated the eating habits of shift workers, in order to clarify how the work shift influences, positively or negatively in the diet. Summarizing evidence allows the elaboration of specific nutritional strategies and strategies for this risk group. In addition, it highlights important aspects to be considered in the development of future studies, aiming to contribute to the quality of the information obtained.

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Smit, Maria Elizabeth Catharina (Marietjie). "The positive and negative impact of permanent night duty on officials in the Department of Correctional Services." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/43246.

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The Department of Correctional Services is the South African Government Department that is responsible for the smooth running of the South African correctional system. Correctional facilities have to be staffed twenty four hours a day and therefore correctional officials have to work fixed or rotating shifts to ensure that the needs of offenders are taken care of. The number of staff members in many South African correctional centres is not sufficient to ensure proper care and management of offenders, but staff shortages during the night is even more chronic compared to staff shortages experienced during the day. It is vital that correctional officials be alert and vigilant at all times and therefore these staff shortages contribute to high levels of stress, lack of motivation and feelings of being overwhelmed by the work load. Shift work is a phenomenon that is increasing worldwide. It is important to understand the impact of work schedules as more people seem to be working shifts that do not conform to the standard work week. Shift workers seem very healthy when their illnesses are compared to that of the general public. Many health problems have been detected in shift workers, including stress related conditions, as any work schedule can act as a stressor if the needs of the individual worker are not taken into consideration. Sleeping patterns during the day differ from sleeping patterns at night. Shift work disrupts a person’s circadian rhythms and therefore contributes to poorer physical and psychological health. It further causes poorer productivity and increases the possibility of becoming involved in accidents. Working night duty is very stressful to the night shift worker who has to cope with challenges at work and at home. There is a variety of common stressors at work that affect shift workers physiologically (cardiovascular, stroke, digestive problems, back pain and arthritis, headaches, increased blood pressure and hormonal), psychologically (burnout, depression, anxiety, family problems, sleep problems and job dissatisfaction) and behaviouraly (absence, tardiness, substance abuse, accidents, sabotage / violence, poor decision making, poor job performance and a high personnel turnover). This study focused on understanding the positive and negative impact of working permanent night duty on correctional officials. The findings of this study will be helpful to correctional officials who work permanent night duty in addressing employee workplace support.
Dissertation (MSW (Health Care))--University of Pretoria, 2014.
lk2014
Social Work and Criminology
MSW (Health Care)
Unrestricted

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Cardozo, Daniela Schiavo 1980. "Efeito do trabalho noturno no controle hormonal da fome e saciedade = Effect of night work on the hormonal control of hunger and satiety." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308480.

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Orientador: Bruno Geloneze Neto
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
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Resumo: Devido ao aumento considerável de trabalhadores noturnos é importante o estudo dos efeitos deste tipo de trabalho na saúde do trabalhador. Estudos atuais demonstram que trabalhos em turno e noturno favorecem transtornos digestivos relacionados a diferenças no hábito alimentar, tanto no valor calórico total, como no horário e número de refeições. Além disso, há aumento dos fatores de risco cardiovasculares, tais como: altos níveis de triglicérides e colesterol séricos, obesidade abdominal, resistência à insulina e outros marcadores da síndrome metabólica. Estes fenômenos estão relacionados a um ganho e redistribuição do peso corporal, em parte atribuível a diferenças no padrão de fome e saciedade. Trabalhadores do turno noturno podem apresentar perturbação no ritmo biológico endógeno em função do conflito temporal entre o relógio biológico endógeno e a estrutura de funcionamento das atividades sociais. Esta dessincronização pode produzir transtornos intensos e persistentes na fisiologia do sono. Foram selecionados 12 trabalhadoras de turno noturno e 12 do diurno do HC-UNICAMP, com IMC entre 25 e 29.9 (sobrepeso). O objetivo deste trabalho foi comparar uma população trabalhadora de turno noturno com uma população trabalhadora diurna, em relação a componentes bioquímicos e antropométricos da síndrome metabólica. Além disso, a caracterização das respostas de hormônios reguladores da fome e saciedade foi acessada a partir de um teste de refeição padrão, com dosagens de grelina, (hormônio orexigênico), oxintomodulina, xenina, glucagon-like peptide 1 (GLP-1) e PYY3-36 (hormônios anorexigênicos). A resistência à insulina foi avaliada por índices que relacionam a produção de insulina com a curva glicêmica durante o teste de refeição (Metabolic Clearance Rate, ou índice de Stumvoll). Estes mesmos voluntários foram avaliados quanto à qualidade de sono, ao cronótipo e ao estado inflamatório sub-clínico (avaliado pelos níveis circulantes de interleucina 6, TNF-?, adiponectina e proteína C-reativa). Na avaliação quanto ao cronótipo, a maior proporção de indivíduos indiferentes foram encontrados no grupo do turno noturno. A qualidade de sono avaliada pelo score de Pittsburgh não demonstrou diferença significante entre os grupos estudados. Os trabalhadores de turno noturno demonstraram valores maiores para disfunção diurna, demonstrando sonolência excessiva diurna. O principal achado foi a caracterização de uma resposta de produção do hormônio orexigênico - grelina - aumentada no período pós-prandial das voluntárias de trabalho noturno e uma resposta reduzida de xenina (um hormônio anorexígeno e de fonte estomacal). Assim este fato pode ser responsável pela mudança do comportamento alimentar e consequente ganho de peso destas trabalhadoras de turno noturno.
Abstract: Due to the considerable increase of night shift workers it is important the study of its effects on worker health. Recent studies reveal that work in shifts and night shift work propitiate digestive disorders related to differences in dietary habits, in the total caloric content, as well as in the timing and number of meals. Moreover, it is noticed an increase in cardiovascular risk factors such as high levels of triglycerides and cholesterol, and abdominal obesity, insulin resistance and markers of metabolic syndrome. These phenomena are related to gain and redistribution of body weight, in part attributable to changes in the pattern of hunger and satiety. Night shift workers may have endogenous biological rhythm disturbance as a result of the temporal conflict between the endogenous biological clock and the functioning structure of social activities. This asynchronization may produce intense and persistent disorders in sleep physiology. We selected 12 night shift workers and 12 day workers of the HC-UNICAMP, with BMI between 25 and 29.9 (overweight). The objective of this study was to compare a population of night shift workers with a daytime working population in relation to anthropometric and biochemical components of the metabolic syndrome. Besides that, the characterization of the responses of hormones regulating hunger and satiety was accessed by means of a standard meal test , with dosages of ghrelin, oxyntomodulin, xenin, glucagon-like peptide 1 (GLP-1) and PYY3-36. Insulin resistance was evaluated by indexes relating the production of insulin during the glycemic test meal (Stumvol index). These same volunteers were evaluated for the quality of sleep, the chronotype and sub-clinical inflammatory state (assessed by circulating levels of interleukin-6, TNF-?, adiponectin and protein C-reactive). In the assessment for the chronotype, the highest proportion of indifferent individuals were found in the group of night shift. The quality of sleep assessed by pittsburgh score showed no significant difference between groups. The night shift workers showed higher values for daytime dysfunction, demonstrating excessive daytime sleepiness. The main finding was the characterization of a increased response in production of hormone - ghrelin - in the postprandial period of night shift workers and reduced response of xenina (an anorectic hormone source and stomach). As a conclusion, this fact may be responsible for the weight gain observed for those night shift workers.
Doutorado
Clinica Medica
Doutora em Clínica Médica

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Sfredo, Carla Cristina Farias. "Influência do turno de trabalho noturno sobre a pressão arterial e prevalência de hipertensão em equipe de enfermagem de hospital de grande porte." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/16453.

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Objective: To evaluate the association between shift work and blood pressure, pre-hypertension and hypertension in nursing personnel of a large general hospital. Methods: In a cross-sectional survey, 493 nurses, nurse technicians and assistants, were selected at random in a large general hospital. Hypertension was diagnosed by the mean of four automatic blood pressure readings>= 140/90 mmHg or use of blood pressure lowering agents, and pre-hypertension by systolic blood pressure>= 120-139 or diastolic blood pressure>= 80-89 mmHg. Risk factors for hypertension were evaluated by a standardized questionnaire and anthropometric measurements. The association between turns of work, defined as day or night, and by the combination of turns, and blood pressure, pre-hypertension and hypertension was explored in bivariate and multivariate analyses, controlling for risk factors for hypertension by covariance analysis and modified regression Poisson. Results: The mean age of the participants was 34.3 ± 9.4 years and 88.2% were women. Night shift workers were older, more frequently married or divorced, and less educated. The prevalence of hypertension in the whole sample was 16%, and 28% had pre-hypertension. Blood pressure (after adjustment for confounding) was not different in day and night shift workers. The prevalence of hypertension and pre-hypertension by shift work (day/night and combination of turns) was not different in the bivariate analysis and after adjustment for confounding (all risk ratios = 1.0). Conclusion: Night shift work is not associated with blood pressure, hypertension and pre-hypertension in nurses and nurses assistants working in a large general hospital.

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Brandt, Julia. "How might we decrease the amount of information lost between and during night shifts through implementing a digital alarm register?" Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-21429.

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This thesis explores the digital opportunities at a mobile workplace in elderly home care by analyzing the existing information and communication flow that happens between and during shifts in everyday practice using a user-centric approach. The fieldwork analysis reveals that a combination of media, both verbal, digital and paper-based is used throughout the shift to pick up and pass on information. With an ageing population that requires care from home, to sustain and improve the quality of care, my research indicates an evident need of supporting home care workers whilst being out of office.The research question is: “How might we decrease the amount of information lost between and during night shifts through implementing a digital alarm register?” which evolved from one out of four design opportunities.The main participants and focus throughout this study are the end-users, night shift home care workers at two different locations in the Malmö municipality. By involving the users early in the process, having a rich fieldwork process and putting emphasis on “support” rather than “replacement” resulted in a mobile application tool presenting relevant patient information, current alarms and alarm history.

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Borges, Anna Flávia Ferreira. "O TRABALHO EM TURNOS DE REVEZAMENTO EM UMA EMPRESA ESTATAL: UMA ANÁLISE EM PSICODINÂMICA DO TRABALHO." Pontifícia Universidade Católica de Goiás, 2017. http://tede2.pucgoias.edu.br:8080/handle/tede/3942.

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This master’s dissertation presents an empirical study results which intends to investigate the shift work impacts and to discuss how this model of working can interfere in the worker’s family and social life and in his health. This is a descriptive exploratory study, based theoretically and methodologically on the Psychodynamics of Work approach, carried out with a group of 12 employees of a state-owned electric power company - operators of substation and hydro-electric power station - that perform their job in rotational shift work schedule. Three collective discussion sessions and a meeting for the research's validation were developed. The data were examined through the work clinical analysis. Three categories were adopted for this study's purposes: the first one is concerned to the shift work; the second was the Organization of Work and, the third one, the subjective mobilization. According to the Psychodynamics of Work premises, work is a central factor in the constitution of worker's health and identity, and the main link between individuals and society; for that reason, the experiences of pleasure and suffering in the work of these professionals were investigated. Concerning to the shift work, allied to the rigid and bureaucratic routine of the investigated workers, the data point to the occurrence of suffering supported by them, evidenced in: difficulty in reconciling work and social/family life; domestic overtasks; difficulty in disconnecting mentally from work; risks they are submitted to, due to the profession; relatedshift work pathologies. It was verified that the shift work most affects the workers' health is the night one, causing damages evidenced by the following symptoms: irritability, discouragement, mood disorders, headaches and fatigue. In this study, the main pathologies identified were insomnia or excessive drowsiness, irritability, stress, fatigue and depression. However, the clinic demonstrated that there are cooperation and trusting among the group, which added to the symbolic recognition are decisive for all people of the company recognize the importance of the work developed by the substation operators in rotating shifts and also feel themselves part of this laborer group, strengthening their identity. It should be noted that the main strategies identified in the group studied were union and cooperation, advocated by the psychodynamics of work as an essential mediation in the formation and renewal of solidarities against suffering at work. In the category Subjective Mobilization, workers experience the pleasure in work concerning to: availability on days-off to solve particular and familiar issues; travels; remuneration; relationship with colleagues; challenges and new job opportunities and a work positive sense in the operator position, which influence the mental health maintenance in the group of the surveyed workers. It is believed that the greatest gain obtained with this research by the workers was to rethink the pertinent questions to their work and for that, It is suggested the permanence of the space for collective discussion so that workers can develop individual and collective strategies to help them to deal with this regime of work, as well as implementations of actions at individual, collective and family levels in order to minimize the impacts caused by the shift work model.
A presente dissertação traz resultados de um estudo empírico que teve por objetivo investigar os impactos do trabalho em regime de turnos de revezamento e discorrer sobre como essa modalidade de jornada de trabalho pode interferir nas esferas familiar, social e na saúde desses trabalhadores, que é uma categoria pouco estudada. Trata-se de um estudo de caráter descritivo exploratório, embasado teórica e metodologicamente na abordagem da Psicodinâmica do Trabalho (PDT), realizado com um grupo composto por 12 trabalhadores de uma empresa estatal de energia elétrica – ocupantes do cargo de “operador de subestação e usinas hidrelétricas” – que desempenham suas atividades em turnos de revezamento. Foram desenvolvidas três sessões de discussão coletiva e um encontro para validação da pesquisa. Os dados foram analisados por meio da análise clínica do trabalho. Foram adotadas, para fins deste estudo, três categorias: a primeira delas consistiu no trabalho em turnos; a segunda foi a Organização do Trabalho e a terceira, a Mobilização Subjetiva. O trabalho para a (PDT) é um elemento central na constituição da saúde e da identidade e o principal elo entre indivíduos e a sociedade; por esta razão, investigaram-se as vivências de prazer e sofrimento no trabalho desses profissionais. No que diz respeito ao trabalho em turnos, aliado à rotina rígida e burocrática dos trabalhadores estudados, os dados apontam para a ocorrência de sofrimento por eles vivenciado, manifesto na(o): dificuldade em conciliar trabalho e vida sociofamiliar; sobrecarga doméstica; dificuldade em se desligar do trabalho; riscos a que estão expostos pela profissão; patologias adquiridas pelo trabalho em turnos. Constatou-se que o turno que mais impacta a saúde dos trabalhadores em turnos é o noturno, causando prejuízos evidenciados pelos sintomas de irritabilidade, desânimo, alterações de humor, dores de cabeça e cansaço. As principais patologias identificadas por esse estudo foram insônia ou sonolência excessiva, cansaço, irritabilidade, estresse, fadiga e depressão. No entanto, a clínica mostrou que há cooperação e confiança no grupo, aspectos que, somados ao reconhecimento simbólico, são decisivos para que todos atribuam sentido positivo ao trabalho de operadores de subestação em turnos e sintam-se pertencentes a este grupo profissional de trabalhadores, fortalecendo sua identidade. Ressalta-se que as principais estratégias identificadas no grupo pesquisado foram a união e cooperação, preconizados pela psicodinâmica do trabalho como uma mediação imprescindível na formação e na renovação das solidariedades contra o sofrimento no trabalho. Na categoria compreendida como Mobilização Subjetiva, os trabalhadores vivenciam mais o prazer no trabalho relacionado a: disponibilidade nos dias de folgas para resolver questões particulares e familiares; viagens; remuneração; relacionamento com as pessoas no local de trabalho; desafios e novas oportunidades de trabalho e sentido positivo do trabalho como operador. Acredita-se que o maior ganho obtido com essa pesquisa pelos trabalhadores foi repensar as questões pertinentes ao seu trabalho e por isso, sugere-se a continuidade do espaço de discussão coletiva para que os trabalhadores possam encontrar nesse espaço, um local de fala e escuta das questões laborais, além de implementações de ações em níveis individual, coletivo e familiar que visem minimizar os impactos causados pela organização temporal de trabalho em regime de turnos.

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Morin, Gardarsdottir Benedikta. "Night shift workers´ sleep experience." Thesis, Mittuniversitetet, Institutionen för hälsovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-37406.

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Day, Nancy Ann 1953. "Subjective sleep characteristics of night shift workers." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/291336.

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A descriptive design was used to study the subjective sleep characteristics of permanent night shift workers, examine the validity and reliability of the Visual Analog Sleep (VAS) Scales, and to compare the scores to a previously tested non night shift working sample. The VAS Scales, which employ a visual analog format to measure subjective perceptions of sleeps were reworded slightly to apply to this population, giving rise to the VAS/NS (Night Shift) Scales. A sample of 40 night shift workers completed the VAS/NS Scales on two separate days. Descriptive and inferential statistics were used to evaluate this data. The VAS/NS Scales evidence good internal reliability. The factors remained essentially the same with some changes for this sample. The subjective experience of sleep was significantly different from the non night shift working sample for five of the 13 characteristics tested.

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Fisk, Dana Georgina. "A study of eating habits amongst night shift nurses /." Adelaide, 2001. http://web4.library.adelaide.edu.au/theses/09HS/09hsf538.pdf.

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Fuller, Grace Anne. "The Night Shift: Lighting and Nocturnal Strepsirrhine Care in Zoos." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1384463090.

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Heemstra, Lydia A. "Melatonin, cortisol, and perceived adaptation after working one night shift." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1461153204.

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Hermansson, Jonas. "Shift work and cardiovascular disease." Licentiate thesis, Mittuniversitetet, Institutionen för hälsovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-17466.

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Shift work is a work schedule being the opposite of normal daytime work, often defined as working time outside normal daytime hours (06:00 to 18:00). In recent years, shift work has been associated with an increased risk of numerous chronic conditions including for example cardiovascular disease, some types of cancer, type II diabetes, and the metabolic syndrome. While some studies on the association between shift work and chronic disease have found results supporting it, others have not. Therefore, more research is needed to clarify potential associations.The aim of this thesis was to further study the proposed association between shift work and cardiovascular disease. This was addressed by performing two studies, one analysing if shift workers had an increased risk of ischemic stroke compared to day workers. The other study analysed whether shift workers had an increased risk of short-term mortality (case fatality) after a myocardial infarction compared to day workers. The studies were performed using logistic regression analysis in two different case-control databasesThe findings from the first study indicated that shift workers did not have an increased risk of ischemic stroke. The findings from the second study showed that male shift workers had an increased risk of death within 28 days after a myocardial infarction; the results did not indicate an increased risk for female shift workers. The results from both studies were adjusted for both behavioural and medical risk factors without affecting the results. The findings from this thesis provide new evidence showing that male shift workers have an increased risk of death 28 days after a myocardial infarction, however more research is needed to clarify and characterise any such potential associations.

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Hermansson, Jonas. "Shift work and cardiovascular disease." Doctoral thesis, Mittuniversitetet, Avdelningen för hälsovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-26219.

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Shift work is often defined as working time outside daytime hours (06:00 to 18:00). In recent years, shift work has been associated with an increased risk of cardiovascular disease (CVD), type II diabetes, and the metabolic syndrome. While some studies support the associations, others do not. Therefore, more research is needed. The aim of this thesis was to further study the association between shift work and CVD. This was addressed by performing four studies, one analysed if shift workers had an increased risk of ischemic stroke, the second study analysed whether shift workers had an increased risk of short-term mortality (case fatality)after a myocardial infarction (MI). The third study analysed if shift work interacts with other risk factors for MI and the fourth study analysed if parental history of CVD interacted with shift work on the risk of MI. The studies were performed using logistic regression analyses and additive interaction analyses in two different case-control databases. Shift workers did not have an increased risk of ischemic stroke. Male shift workers had an increased risk of death within 28 days after a MI. Shift work interacts with some CVD risk factors and interacts with paternal history of CVD and the risk of MI for males. The findings from this thesis provide new evidence showing that shift work is in different ways associated with an increased risk of MI and related mortality, but not with ischemic stroke. However, more research is needed to clarify and characterise these results.

Vid tidpunkten för disputationen var följande delarbeten opublicerade: delarbete 3 manuskript, delarbete 4 manuskript

At the time of the doctoral defence the following papers were unpublished: paper 3 manuscript, paper 4 manuscript

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Eriksen, Claire Anne. "Sleepiness - night work, time zones and activity /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-790-1/.

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Davy, Jonathan Patrick. "The effects of a gradual shift rotation and a split shift nap intervention on cognitive, physiological and subjective responses under simulated night shift settings." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/517.

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Introduction: Shift work, particularly work that occurs at night has been associated with numerous challenges to occupational safety and productivity. This stems from the associated extended wakefulness, circadian disruptions and sleep loss from the inversion of the sleep wake cycle, which predisposes shift workers to reduced alertness, increased fatigue and decrements in performance capacity. These effects may be exacerbated over consecutive night shifts as a result of reductions in sleep length associated with attempting to sleep against the alerting signals of the circadian rhythm during the day. Although a variety of shift work countermeasures exist, new and innovative fatigue management strategies are needed to mitigate the effects of night work. This study proposed two night shift interventions; the Rolling rotation and a split shift nap combination. Aims: The aim of this study was to explore the effects of these interventions to a conventional Fixed night shift arrangement. Selected performance, physiological and subjective measures were applied to track any effects during a five-day shift work study. Methods: The study was laboratory-based and performance was quantified through the application of computer-based perceptual, cognitive and motor tests. Student participants (24 females and 21 males) partook in the study, which adopted a nonrepeated measures design and spanned five consecutive days. During this time, participants were required to perform a simple beading task over five 8-hour shifts. Participants were split according to sex and chronotype between four independent conditions; 1. Fixed night condition required participants to complete one afternoon shift (14h00 – 22h00) and four consecutive night shifts (22h00 - 06h00) 2. Rolling rotation condition gradually “rolled” participants into the night shift by delaying the start and end of an afternoon shift by two hours each day (16h00 – 00h00, 18h00 – 02h00, 20h00 – 04h00, 22h00 – 06h00) until the times matched that of the Fixed night condition. 3. The split shift nap system was made up of two independent groups, both of which completed one afternoon (14h00 to 22h00) and four night shifts. The Nap early condition worked from 20h00 to 08h00, napping between 00h00 and 04h00, while the Nap late condition worked from 00h00 to 12h00 and napped between 04h00 and 08h00 during the night shifts. Napping, the opportunity for which was 200 minutes occurred in the laboratory, but post shift recovery sleep, for all conditions, happened outside the laboratory. During each shift, six test batteries were completed, in which the following measures were taken: 1. Performance: beading output, eye accommodation time, choice reaction time, visual vigilance, simple reaction time, processing speed and object recognition, working memory, motor response time and tracking performance. 2. Physiological: heart rate, heart rate variability (r-MSSD, normalised Low frequency power: LFnu). 3. Self-reported measures: subjective sleepiness and reported sleep length and quality while outside the laboratory. Results: Analyses revealed that: 1. Measures of beading performance, simple reaction time, vigilance and object recognition, working memory, motor response time and control, all physiological measures, except LFnu and subjective sleepiness demonstrated the effects of time of day / fatigue, irrespective of condition. 2. There was no evidence of cumulative fatigue over the four night shifts in the performance and subjective measures and most of the physiological indicators. Beading output decreased significantly over the course of the night shifts, while reported post shift sleep length was significantly reduced with the start of the night shifts, irrespective of condition. 3. The majority of the physiological and performance measures did not differ significantly between conditions. However, there were some effects: the Rolling rotation condition produced the highest beading output compared to the Nap late condition; working memory was significantly lower in the Nap late condition compared to the other conditions. Furthermore, the nap opportunity in both the Nap early and Nap late conditions reduced subjective sleepiness, while napping during the night shift reduced post shift sleep length compared to the Rolling rotation and Fixed night conditions. There was also evidence of sleep inertia following pre-post nap test comparisons, which mainly affected visual perception tasks in both nap conditions. Sleep inertia possibly also accounted for an apparent dissociation between subjective and performance measures. Conclusions: Quantifying and interpreting the effects of night shift work in a laboratory setting has limitations. These stem mainly from the limited ecological validity of the performance outcome measures adopted and the characteristics of the sample that is tested. However, in order to fully understand the efficacy of any shift work countermeasure, the laboratory setting offers a safe, controlled environment in which to do so. The conclusions should thus be considered in light of these limitations. Night shift work negatively affected all elements of human information processing. The combination of reduced physiological arousal, extended wakefulness, increased perceptions of sleepiness and reduced total sleep obtained explained these decrements in performance. While cumulative fatigue has been reported as a challenge associated with night shift work, there was no conclusive evidence of this in the current study. In the case of the Rolling rotation, the gradual introduction to the night shift delayed the inevitable reduction in alertness and performance, which limits the viability of this intervention. The inclusion of the nap interventions was associated with reduced perceptions of sleepiness, which did not translate into improved performance, relative to the Rolling rotation and Fixed night conditions. Apart from considerations of how to manage sleep inertia post nap, the split shift nap intervention can provide an alternative to conventional night shift work arrangements.

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Horton, Carolyn Dopson. "The Effects of the Night Shift on Nursing Staff of an Inpatient Hospice Facility." ScholarWorks, 2015. http://scholarworks.waldenu.edu/dissertations/1686.

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The night shift environment in an inpatient hospice facility is unique in care and relegates challenging situations for the nursing staff. Using the Parse methodology, the purpose of this project was to explore the challenges faced by inpatient hospice facility night shift nursing staff in providing a continuum of care for dying patients and their families. Nine night shift hospice nurses participated in 45-60 minute interviews. The interviews were conducted in a hospice quiet room or a designated place of comfort for the participant, which allowed for dialogical engagement. The interviews were unstructured with open-ended questions about lived experiences. The interpretive phenomenological approach was used to understand positive outcomes and management involvement and developing positive morale. Descriptive coding was used to collect and analyze data. According to study findings, hospice night shift nursing staff were exposed to the stressors of dying patients, their families, a dissatisfied work environment, and their personal life. The core concepts addressed by the participants were feeling isolated and disrespected, staff development, and using coping strategies. Strong relationships through coping mechanisms were developed on the night shift, but the unmet issues of the staff were poorly regarded. The study perpetuates the need for further research in understanding the experiences of hospice night shift nursing staff and the changes needed to eliminate imminent night shift turnover.

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Purnell, Melissa T., and n/a. "Sleep, alertness, performance and fatigue management in extended duration and irregular night shift workers." University of Otago. Dunedin School of Medicine, 2005. http://adt.otago.ac.nz./public/adt-NZDU20061030.085607.

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Extended duration and irregularly planned overnight shifts are becoming frequent features of current working time arrangements. However, there is great concern about the detrimental effect that these shifts are likely to have on the sleep, performance and fatigue levels of workers. To date, the empirical evidence regarding the effects of extended and irregular overnight shifts is sparse and workers have rarely been followed up longer term to assess possible changes over time. Because these types of overnight shifts are being introduced into transport settings such as aviation and shipping where safe and productive operations are paramount, there is a real imperative to examine and trial workplace-based methods aimed at counteracting night shift related fatigue and performance deficits. Taking short duration naps on the nightshift at work is one potential countermeasure that has shown promise in the laboratory but has yet to be examined in any real-world setting under conditions of extended duration or irregular night work. This thesis takes up these issues in a series of four empirical workplace-based studies. The impact of the introduction of regularly planned 12 h day and overnight shifts was examined on three occasions via questionnaire in a group of aircraft maintenance engineers, once before the change, and twice after the change from 8 h shifts. The results showed that high levels of acute fatigue on the 12 h night shifts and high chronic fatigue levels were common, and were strongly associated with poor overall job performance, poor safety of job performance, and longer recovery times, effects that persisted over time. Of major concern was the finding that over half of the engineers reported having nodded off while driving home from their extended overnight shifts. The impact of irregularly planned 8 h overnight shifts worked by cargo handlers in a shipping container terminal was also examined via self-report questionnaire. The findings revealed significant detrimental impacts on sleep, fatigue levels and performance at work. High fatigue levels were strongly associated with poor self-rated performance output and safety of performance at work on the overnight shifts. The primary focus of this thesis was to evaluate the effect of a scheduled 20 min nap opportunity taken in these two fully operational workplaces during the night shift on sleep, performance and alertness. Sleep was achieved by 50 to 59% of workers. Speed of performance in 24 male aircraft maintenance engineers on a vigilance task was significantly faster at the end of a 12 h overnight shift that had contained sleep during the nap compared to the control condition. There was no such effect of the nap on the performance of 22 cargo handlers working impromptu 8 h shifts in a shipping container terminal. However, the duration of sleep obtained by the 8 h workers was shorter in comparison and was likely to have been undermined by the high noise levels around the nap facility and time pressures related to the organisation of work. Actigraphy data recorded from all subjects showed that subsequent daytime sleep was not disrupted by the night shift nap opportunity. Overall, the most interesting findings were that simply being tired and presented with a sleep opportunity during the night shift did not guarantee either sleep, or recovery but that sleep, as opposed to rest, was necessary for the benefits to performance to be fully realised. These findings have shown for the first time that management of fatigue associated with extended duration night work can be achieved in some instances by the use of a short duration nap taken in the workplace on the night shift. However, operationalizing in-situ napping on the night shift has a range of organisational influences that must be considered for the potential of such a strategy to be fully harnessed.

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Saracel, Nüket. "Gece çalışması ve Türk iş hukukunda gece çalışmasının düzenlenme esasları." Eskişehir [Turkey] : Anadolu Üniversitesi Basımevi, 1987. http://catalog.hathitrust.org/api/volumes/oclc/26856217.html.

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Neil-Sztramko, Sarah. "Physical activity to improve health and reduce chronic disease risk in female night shift workers." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55385.

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There is growing evidence that shift workers are at increased risk of cancer and a number of chronic diseases. As the prevalence of shift work is unlikely to decrease, an understanding of the factors that contribute to, and strategies that can be used to mitigate this risk are needed. Physical activity is known to improve health, and reduce chronic disease risk. However, evidence suggests that women shift workers may be less likely than other women to be sufficiently physically active. This dissertation aims to examine the effect that physical activity may have on improving health and reducing breast cancer risk in shift workers, by employing a variety of research methodologies. The first study is a systematic review of the literature on interventions aimed at improving the health of shift workers. This was conducted to understand what strategies have been most effective, as well as to identify gaps in the literature. The second study used cross- sectional data from the Canadian Health Measures Survey to understand patterns of physical activity and sedentary time in shift workers compared to day workers, as well as objective measures of physical fitness and obesity. The third and fourth studies aimed to understand women shift workers’ perspectives on physical activity, particularly barriers to and preferences for physical activity programming, using quantitative and qualitative research methods respectively. Findings from these four studies led to the development of a distance-based physical activity intervention, consisting of behavioural counselling sessions, and use of an activity tracker to encourage participants to meet Canada’s physical activity guidelines of 150 minutes per week of moderate-vigorous physical activity. This intervention was found to be feasible to implement in women shift workers, with preliminary evidence of efficacy. In summary, these studies highlight the important role that physical activity may play in improving health and reducing breast cancer risk in women shift workers. The intervention developed lays the groundwork for future randomized-controlled trials to determine the magnitude of the effect that regular physical activity may have on shift workers’ risk of breast cancer and other chronic diseases.
Medicine, Faculty of
Population and Public Health (SPPH), School of
Graduate

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Juda, Myriam. "The Importance of Chronotype in Shift Work Research." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-118146.

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Wong, Imelda S. Y. "Shift work, stress and heart disease among paramedics." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43496.

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Shift work and work-related stress is a rising concern among the workforce population because of the potential link to cardiovascular disease (CVD). While these exposures are common in emergency services, there are few studies examining if these factors increase CVD risk among paramedics. The aim of this dissertation is to address this research gap. The first study examined neuroendocrine activity related to shift work and job strain. Shift workers (n=14) reported higher job strain than daytime workers (n=7) and exhibited neuroendocrine dysregulation through salivary biomarkers (alpha-amylase and cortisol) and subclinical CVD indicators (heart rate variability and endothelial functioning). The sampling protocol developed in this study can be used for future, large-scale field studies. The second and third studies used records of emergency runs attended by British Columbia (BC) paramedics between 1990/1 and 2002 to derive exposures, and administrative records from the BC Linked Health Database to ascertain CVD cases. The second study used a nested case-control design with 11 years follow-up (n = 183 – 742). Three controls were matched per case by age, sex and first year of employment. Results of conditional logistic regression did not support hypotheses that shift work was associated with hypertension, chronic coronary syndrome nor acute coronary syndrome; nor that time away from shift work may reduce the risk of CVD. However, development of novel shift work metrics which incorporated periods of neuroendocrine dysregulation and recovery should be considered in future studies. The third study used a case-crossover design to compare exposures during 4 days prior to onset of acute coronary events to exposures in 4 randomly chosen days in the month prior for each acute coronary case (n=65). Results suggest non-significant increased risks of acute coronary syndrome were associated with busy work days, high-stress emergencies and discrepancies between dispatched information and diagnosis at the scene. A delay in onset of acute coronary events was also observed. Results suggest current psychological debriefing sessions may not be effective and that considerations should be made to improve mental health programs to reduce psychological strain.

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au, buxtons@senet com, and Sandra Michelle Buxton. "Shift Work: An Occupational Health and Safety Hazard." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040302.154645.

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Shift work is a major feature of modern work practices. It involves individuals working at times considered unconventional for most workers, such as at night. Although the community often benefits from such work practices, shift work can be hazardous, for both the workers and the community. The thesis reviews the main problems of shift work, especially when involving night work. These are: an increased risk for accidents and errors; increased sleepiness and fatigue due to difficulties sleeping; increased health problems; and disruption to family and social life. Strategies to limit the risk associated with these hazards are also reviewed, and include using knowledge of circadian principles to plan shift schedules, sleeping schedules and meal times; planned napping; consideration of the work environment; and newer techniques such as using bright lights and melatonin. While this information is known to the research community, it has not filtered down to many shift work workplaces and thus has had little if any positive effect on actual shift work practices. For a change in shift work practices to occur, the research knowledge must become available to every shift work workplace, as must some incentive or motivation to ensure that workplaces make the necessary changes. The Occupational Health and Safety (OHS) laws provide such a framework. Considering shift work as an OHS hazard would ensure that all shift work workplaces identified the hazards of shift work, conducted a risk assessment to identify the risk associated with the hazards, and then implemented the appropriate strategies, from the hierarchy of shift work hazard control measures, for both employers and employees, to fulfil their duty of care to minimise the risks. Considering shift work as an OHS issue would ensure that the research information was used as intended to improve the safety, performance, and quality of life of all shift workers. The present thesis reviews the shift work research and introduces an OHS perspective as a method to manage shift work effectively.

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44

Buxton, Sandra Michelle. "Shift work: an occupational health and safety hazard." Buxton, Sandra Michelle (2003) Shift work: an occupational health and safety hazard. Masters by Research thesis, Murdoch University, 2003. http://researchrepository.murdoch.edu.au/495/.

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Abstract:

Shift work is a major feature of modern work practices. It involves individuals working at times considered unconventional for most workers, such as at night. Although the community often benefits from such work practices, shift work can be hazardous, for both the workers and the community. The thesis reviews the main problems of shift work, especially when involving night work. These are: an increased risk for accidents and errors; increased sleepiness and fatigue due to difficulties sleeping; increased health problems; and disruption to family and social life. Strategies to limit the risk associated with these hazards are also reviewed, and include using knowledge of circadian principles to plan shift schedules, sleeping schedules and meal times; planned napping; consideration of the work environment; and newer techniques such as using bright lights and melatonin. While this information is known to the research community, it has not filtered down to many shift work workplaces and thus has had little if any positive effect on actual shift work practices. For a change in shift work practices to occur, the research knowledge must become available to every shift work workplace, as must some incentive or motivation to ensure that workplaces make the necessary changes. The Occupational Health and Safety (OHS) laws provide such a framework. Considering shift work as an OHS hazard would ensure that all shift work workplaces identified the hazards of shift work, conducted a risk assessment to identify the risk associated with the hazards, and then implemented the appropriate strategies, from the hierarchy of shift work hazard control measures, for both employers and employees, to fulfil their duty of care to minimise the risks. Considering shift work as an OHS issue would ensure that the research information was used as intended - to improve the safety, performance, and quality of life of all shift workers. The present thesis reviews the shift work research and introduces an OHS perspective as a method to manage shift work effectively.

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45

Turner, Amy L. "Secondary Analysis of Firefighter Injuries and Shift Work." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1275922762.

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46

Foldal, Vegard Stolsmo. "Personal Dispositions and Shift Work Tolerance. A Longitudinal Study of Shift Workers in Trondheim Municipality." Thesis, Norges teknisk-naturvitenskapelige universitet, Psykologisk institutt, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26637.

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The aim of the present study was to investigate how dispositional resistance to change (RTC) and neuroticism could predict shift work tolerance (SWT) over a period of six months. Electronic questionnaire were completed by 74 shift workers employed in Trondheim municipality in January 2013 (T1) and in June 2013 (T2). The results showed that age, gender, neuroticism, and RTC were related to SWT. Age at T1 predicted better SWT at T2, while male gender predicted worse SWT at T2. RTC at T1 predicted better SWT at T2, while neuroticism at T1 predicted worse SWT at T2. The findings suggest that individual differences, especially neuroticism, can predict SWT over a period of six months.

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Cornford, Stephen. "A critical edition of Edward Young's 'Night Thoughts'." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377818.

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Plante, Nicole Jean. "Work shift food delivery strategies during arduous wildfire suppression." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05312007-145822/.

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Axelsson, John. "Long shifts, short rests and vulnerability to shift work." Doctoral thesis, Stockholm : Department of Psychology, Stockholm University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-453.

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Gibbs, Michelle A. "Consequences of shift work on circadian rhythms and metabolism." Thesis, University of Surrey, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418079.

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Dissertations / Theses on the topic 'Shift and night work'

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