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Dissertations / Theses on the topic 'Shiftwork'
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Gousheh, Seyed Abdolmehdi. "Aging and shiftwork tolerance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0015/NQ49940.pdf.
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Reid, Kathryn J. "Measuring adaption to shiftwork /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phr3561.pdf.
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Hill, J. "Individual differences in adaptability to shiftwork : an exploration of models of shiftwork tolerance." Thesis, Swansea University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637278.
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In order to refine models of shiftwork tolerance, the purported relationships between outcomes and modifiers of the adaptation process were explored. A series of empirical studies amongst shiftworkers, across a variety of work patterns and industries, examined the efficacy of demographic, circadian, personality and work-related variables as predictors of shiftwork tolerance. Trends were shown to be attenuated by shift type, industry type and the length of exposure to the shift system. Using a phenomenological approach, Study 1 conducted a series of semi-structured interviews, investigating the aetiology and management of effects through the eyes of shiftworkers themselves. Analysis of recurrent themes supported established trends in the literature and some fit with the models, highlighting both outcome, and to a lesser extent, modifier variables. New relationships were also identified. Study 2 used this information to design a questionnaire for the collection of more objective data from the same site. Outcomes were capable of being meaningfully reduced into major problem domains. The number and predictive validity of modifiers varied according to the outcome under investigation, with similarities emerging between outcomes that correlated strongly with one another. Using the same approach, Study 3 examined the effect of the type of shift worked. Extent of problems and patterns of prediction showed a strong shift-dependent effect, with reliable trends emerging between those groups involved in nightwork and those not. Study's 4 and 5 explored the effect of short-(5 weeks) and long-term (12 months) exposure. Despite predictive relationships being stronger at follow-up, they were inconsistent over time, suggesting that such interactions are an evolving process. Regardless of the type of shift, industry, or length of exposure, attitudes towards shiftwork were most strongly predicted by work-related modifiers, health outcomes by circadian/personality modifiers, and sleep duration by demographic modifiers, suggesting that specific domains are differentially mediated.
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Njela, Clive Jonathan. "The impact of shiftwork on productivity." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1299.
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Shiftwork is common in the private sector but not exclusive from the public sector like nursing. In order to secure a continuous operation, and optimization of equipment, businesses introduced shiftwork. The author wanted to test certain hypotheses to better understand the impact of shiftwork. In this research the author first embarked on a theoretical study into shiftwork and its associated problems, which include the impact on productivity, the impact on the employer’s attitude towards the work, the impact on the family life, the impact on social life, the impact on physical health and the psychological effects. Thereafter, an empirical study was conducted to ascertain to what extend shiftwork affects productivity and the life of the employees. The data was then analysed to explain the impact of shiftwork and productivity. Lastly, recommendations were made based on the research.
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Wedderburn, Alexander Allan Innes. "Studies of attitudes to continuous shiftwork." Thesis, Heriot-Watt University, 1991. http://hdl.handle.net/10399/1486.
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Florida-James, Geraint Desmond. "Effects of nocturnal shiftwork on student nurses." Thesis, Liverpool John Moores University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244737.
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Brooks, Ian. "Professional change : an examination of nursing from a cultural perspective." Thesis, Oxford Brookes University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289126.
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Johnson, Karen L. "A work and family perspective on the effects of shiftwork." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0023/MQ27038.pdf.
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Johnson, Karen L. (Karen Lea) Carleton University Dissertation Management Studies. "A Work and family perspective on the effects of shiftwork." Ottawa, 1997.
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Karstien, Richard F. "Effectively dealing with the problems of shiftwork as a police officer." Instructions for remote access. Click here to access this electronic resource. Access available to Kutztown University faculty, staff, and students only, 2006. http://www.kutztown.edu/library/services/remote_access.asp.
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Thesis (M.P.A. )--Kutztown University of Pennsylvania, 2006.Source: Masters Abstracts International, Volume: 45-06, page: 2945. Typescript. Abstract precedes thesis as 2 leaves (iii-iv). Includes bibliographical references (leaves 52-56).
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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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Coldwells, Adam. "Effects of age and physical activity on the entrainment of human circadian rhythms following a phase shift." Thesis, Liverpool John Moores University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321360.
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Gravely, Marianne Hastoglis. "The effect of shiftwork on dietary intake and personal health perspective of nurses." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09192009-040520/.
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Norström, Frida. "”DET ÄR SOM ETT PUSSEL” : -En kvalitativ studie om skiftarbetares upplevelser av balansen mellan arbete och fritid." Thesis, Umeå universitet, Sociologiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149892.
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Idag möter många människor svårigheter med att balansera arbetslivet och privatlivet. Att tiden och energin inte riktigt räcker till för alla delar i livet. En grupp som särskilt möter dessa svårigheter är skiftarbetare. Syftet med studien är att undersöka hur skiftarbetare som arbetar utifrån två olika arbetstidsmodeller upplever och hanterar balansen mellan arbete och fritid. För att besvara syftet har åtta semistrukturerade intervjuer genomförts med undersköterskor från Norrlands universitetssjukhus. Resultatet från studien visar att samtliga undersökningspersoner generellt sätt upplever en god balans mellan arbete och fritid. Trots det upplever de stundtals konflikter däremellan. De främsta skillnaderna mellan hur undersköterskor som arbetar utifrån de två arbetstidsmodellerna upplever balansen är kopplade till ansvar, återhämtning samt kontroll över arbetsschemat. För att hantera konflikter mellan arbete och fritid använder sig undersökningspersonerna av olika strategier. Några av dessa är att planera och prioritera, söka stöd från omgivningen samt att acceptera läget.
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Menges, Suzanne T. "Teacher perceptions of the effects of parental shiftwork on student performance, development, and behavior: Implications for school leaders." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280307.
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This study researched the impact of parental shiftwork schedules on the performance, behavior, and development of middle-school students as seen through the eyes of their teachers. Located in a company-owned town in southeastern Arizona, the study focused on the experiences of middle-school teachers by asking them to consider and reflect on their observations of middle-school students in terms of the shiftwork schedule their parents worked. The teachers were also asked to respond to questions regarding what they had done in their own classrooms and what school leaders could do to lessen these impacts. By analyzing their responses, conclusions may be drawn as to the extent of these impacts, their variability and scope, and their implications for school leaders.
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He, Chunhui. "Physical and Psychosocial Demands on Shift Work in Nursing Homes." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378393703.
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Signal, T. Leigh. "Scheduled napping on the night shift : consequences for the performance and neurophysiological alertness of air traffic controllers : a thesis submitted for the degree of Doctor of Philosophy of the University of Otago, Dunedin New Zealand." Massey University, 2002. http://hdl.handle.net/10179/233.
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Rapid technological change and increasing traffic volumes worldwide are adding to the safety challenges for air traffic control. The night shift has traditionally been a period of low workload and work practices have evolved to reflect this. Thus, despite the exemplary safety record, there is a need to consider further systemic defences for maintaining performance and safety on the night shift. One possible strategy is the provision of a scheduled nap at work. In order to investigate the consequences of a scheduled nap on the night shift, 28 operational air traffic controllers were monitored across four roster cycles. Each roster cycle included one of two night shifts. Air traffic controllers were given a nap opportunity on one night shift of each type, and did not nap on the other. Information on the timing, quantity, and quality of sleep during the work week and days off was collected using actigraphy, and supported with logbook data. Sleep during the nap was measured using polysomnography, and the EEG and EOG were further utilised to determine neurophysiological alertness over the latter part of the night shift. Reaction time performance was measured three times across the night shift (beginning, middle, and end) with the psychomotor vigilance test.Actigraphy data indicated that the backward, rapidly-rotating work schedule of air traffic controllers resulted in a progressive loss of sleep across the work week. The reduction in sleep lead to an increasing cumulative sleep debt that was at a maximum prior to the night shift. This sleep debt was not related to reaction time performance at the end of the night shift, but was found to influence neurophysiological alertness.It was determined that the large majority of air traffic controllers were able to sleep during the scheduled 40 minute nap opportunity. However, the latency to sleep onset was long, the sleep short, and of relatively poor quality. Circadian and homeostatic factors increased the likelihood of entry into, and waking from, slow wave sleep (SWS). They were also found to influence reaction time performance and neurophysiological alertness. More variable performance and lowered alertness were seen at the end of the later starting (and finishing) night shift, possibly due to the combined influence of circadian and time-on-task factors. Homeostatic variables had less influence on performance at the end of the night shift, but greater acute sleep loss and higher cumulative sleep debts were related to increased neurophysiological sleepiness.performance and greater neurophysiological alertness in a dose-dependent manner, with even small amounts of stage 1 sleep effecting a performance improvement. Performance improvement was consistent across a range of reaction time measures and consistent improvements were also evident in the neurophysiological data, with the occurrence of SEMs declining, and lower spectral power evident in all frequency bands and single frequencies.These findings clearly demonstrate that a minimal quantity of sleep benefits the performance and alertness of air traffic controllers despite the "noise" of a field setting, thus providing a link between laboratory studies of napping and the actual work environment. The findings also fully support management endorsing a 40 minute napping opportunity for air traffic controllers working the night shift.The short nap sleep had no measurable effect on sleep subsequent to the night shift. However, the amount of sleep obtained in the nap was related to improved reaction time.
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Sjövall, Jimmy, and Johan Larsson. "Vi ses om tre veckor! : En kvalitativ studie om chefens relation till sina skiftgående medarbetare." Thesis, Karlstads universitet, Handelshögskolan, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36149.
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Pessa, Sérgio Luiz Ribas. "Análise do trabalho nos três turnos do setor de corte e solda e impressão de uma indústria de embalagens plásticas flexíveis de alimentos, considerando o cronotipo do trabalhador." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/34771.
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O objetivo geral desta tese foi avaliar o impacto do sistema de trabalho em turnos nos trabalhadores de dois setores de uma indústria de filmes e embalagens flexíveis para alimentos que opera em três turnos de trabalho fixos, considerando o cronotipo do trabalhador. Foi feita a caracterização do sexo, experiência profissional, faixa etária e cronotipo (por meio de dois questionários) de 42 trabalhadores do setor de Impressão e 43 do setor de Corte/Solda nos três diferentes turnos e avaliadas as cargas física e mental (com ferramentas subjetivas e indicadores fisiológicos) das atividades realizadas e as demandas ergonômicas dos Construtos: Ambiente, Posto de trabalho, Organização de Trabalho, Conteúdo do Trabalho, Empresa e Risco/Dor. Foram coletados parâmetros ambientais (ruído, temperatura e umidade) para identificar o seu grau de impacto sobre o desempenho do trabalhador. Embora dentro dos limites legais, principalmente o ruído e a temperatura apresentaram baixa satisfação nos dois setores. Os resultados estatísticos apontaram diferenças entre os resultados em função dos setores (o setor de Impressão com maiores demandas do que o Corte/Solda), turnos (o turno noturno com mais demandas) e influência do cronotipo discrepante ao horário de turno. Os trabalhadores com cronotipo desajustado ao horário do turno tendem a perceber mais negativamente a carga de trabalho, tendem à menor satisfação com vários itens de demanda ergonômica e a sentir maior intensidade de dor. Houve variação dos indicadores fisiológicos (nível de cortisol salivar, catecolaminas urinárias, pressão arterial, frequência cardíaca e consequentemente, do percentual da máxima capacidade aeróbica) dependendo do indivíduo e eles foram consistentes com a avaliação subjetiva de carga de trabalho. Os resultados deixam claro que os trabalhadores sabem a que horas querem iniciar e finalizar o trabalho (que são compatíveis com o cronotipo) e não gostam de trabalhar em turno, mas se o turno for necessário, a preferência é por turno fixo. A proposta é que no caso de trabalho em turno, seja considerado o cronotipo do trabalhador e que este tenha autonomia para escolher o turno, pois necessidades familiares e sociais também são fatores de decisão nesta escolha.This thesis aimed to evaluate the impact of shiftwork on the workers of two sectors of a flexible packaging manufacturer which operates in three shifts, considering the cronotype of the worker. 42 workers from the three shifts of the Imprint sector and 43 from the Cutting/Welding sector were characterized according to sex, professional experience, age and cronotype (based on two questionnaires). Both mental and physical workload were evaluated using subjective tools and physiological parameters. The satisfaction with their work (i.e., the Environment, the Workstation, the Work Organization, the Work Content, the Enterprise and the Risk of pain) was evaluated by questionnaire. Environmental data (noise, temperature and humidity) were gathered for evaluation of their impact on the workers. Although within the law limits, noise and temperature were not satisfactory in both sectors..The statistical results showed differences between the sectors (the Imprint one with more esrgonomic demands), among the shifts (the night one with more ergonomic demandas) and influence of the worker cronotype. The workers whose cronotype were not compatible with their shiftwork tend to be less satisfied with their work, tend to feel more pain and overloaded. The physiological parameters (hormonal levels of cortisol, urinary cathecholamines, arterial pressure, heart rate and consequently the percent of maximum aerobic work capacity) varied with the individual and were consistent with the subjective workload evaluation. The results showed that the workers know their best work time (which is compatible with their cronotype), they do not like shiftwork but if it is necessary, they prefer the fixed shift. The proposal is that if shiftwork is necessary, the worker cronotype has to be considered and he/she should choose the shift because familiar and social issues are also part of this choice.
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Winther, Emmah. "Skiftarbetande individers upplevelser av skiftarbetets fysiska och psykiska effekter samt effekter på mattider och matvanor." Thesis, Högskolan i Gävle, Avdelningen för arbets- och folkhälsovetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-13723.
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Syftet med studien var att undersöka hur individer som arbetar skift upplever att skiftarbetet påverkar dem fysiskt och psykiskt samt hur de upplever att det påverkar deras mattider och matvanor. Metoden som användes var en kvalitativ semistrukturerad intervju. Fyra skiftarbetande informanter deltog i studien, av dessa var tre personer män och en kvinna. Informanterna i studien var 24, 27, 45 samt 45. Intervjuerna spelades in och transkriberades för att sedan analyseras med hjälp av innehållsanalys. Meningsenheter ur det transkriberade materialet valdes ut, kondenserades och kodades. Koderna sammanställdes sedan till kategorier. Resultat som framkom av studien var att informanterna angav att de påverkades både fysiskt och psykiskt av att arbeta skift. De upplevda fysiska symptom som rapporterades till följd av att arbeta skift var trötthet och sömnsvårigheter. De upplevda bakomliggande faktorerna till de fysiska symptomen var svårigheter att koppla av, omställning mellan skift samt intensiteten på arbetet. De upplevda psykiska symptom som rapporterades var trötthet, nedstämdhet och stress. De upplevda bakomliggande faktorerna som informanterna angav till de psykiska symptomen var störd sömnrytm, rädsla för att göra fel i arbetet samt matvanor. Informanterna uppgav att de upplevde att deras mattider och matvanor påverkades av att de arbetar skift. Gällande skiftarbetets påverkan på mattiderna uppgavs problematiska mattider, hungrigare på kvällarna samt sockersug nattetid som påverkansfaktorer. Informanter angav svårigheter att äta nattetid, mättnad, rörligt schema samt sömnbrist som upplevda bakomliggande faktorer. Informanternas upplevelser av hur skiftarbetet påverkar deras matvanor uppgavs att de äter onyttigare kvällstid samt att de äter onyttigare nattetid. De upplevda bakomliggande orsakerna till skiftarbetets påverkan på matvanorna var snabb energipåfyllning samt lathet. Resultaten visade att det finns ohälsosamma effekter av skiftarbete för personer som arbetar skift, vilket motiverar och därför är det en viktig aspekt för folkhälsovetenskap att fortsätta sin ytterligare forskning om riskfaktorer och förebyggande åtgärder.The aim of this study was to learn about how shift workers experience how the shiftwork affect them both physically and psychologically and to study if they experience that their mealtimes and eating habits are affected by the shift work. The method used was a qualitative semi-structured interview. Content analysis was used to analyze the interviews. The results showed that the informants were affected by working shift both physically and psychologically. Physical symptoms reported were fatigue and insomnia. Reported psychological symptoms were fatigue, stress and low mood. All informants reported that both their mealtimes and eating habits were affected. The results showed that mealtimes were affected by sleep deprivation and variable schedule. The eating habits were reported to be unhealthier when the informants were working evening or night shift. The results showed that there are unhealthy impacts from shiftwork on individuals who are working shift, which motivates further research on risk factors and preventive measures.
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Henry, Willie Lee. "The effects of shiftwork upon the marriage relationship of guards of prisoners at the United States Army Confinement Facility in Mannheim, West Germany." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 1989. http://digitalcommons.auctr.edu/dissertations/AAIDP14674.
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Assis, Dnieber Chagas de. "Associação da expressão circadiana do cortisol de enfermeiros segundo trabalho em turnos, estresse ocupacional e fadiga." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/22/22132/tde-04072018-144422/.
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O trabalho noturno e a alternância de turnos são identificados como fatores de maximização de efeitos negativos na saúde do trabalhador, como o estresse e a fadiga, por dificultarem a adaptação do ritmo circadiano do cortisol ao de trabalho. Objetivo: investigar o efeito do esquema de trabalho em turnos fixo e alternante e noturno de enfermeiros nos índices de estresse ocupacional e fadiga e na expressão circadiana do cortisol salivar. Método: estudo observacional de corte transversal e abordagem quantitativa dos dados estruturado com base no referencial teórico de Cooper. Realizado com 104 enfermeiros das Unidades de Emergência e Bloco Cirúrgico de hospital de ensino público do Estado de São Paulo e outro de Minas Gerais, no período de janeiro a março de 2017. Índices de estresse e fadiga foram mensurados por meio da aplicação de dois instrumentos: o Inventário de Estresse em Enfermeiros e a Escala de Avaliação de Fadiga, ambos validados para utilização no Brasil. A quantificação do cortisol salivar foi realizada por meio da técnica de ELISA. O projeto foi aprovado pelo Comitê de Ética em pesquisa sob protocolo. 55695416.7.0000.5393. Resultados: 66,67% dos enfermeiros trabalhavam em esquema de turnos alternantes e 39,39% eram fixos no turno matutino. Constatou-se 50,8% apresentaram alto índice de estresse e 46,03% fadiga. Não foram observadas associações estatisticamente significativas entre índices de cortisol salivar, turno de trabalho, esquema de turno fixo ou alternante, estresse e fadiga. Entretanto, profissionais de enfermagem de unidades críticas que trabalhavam em esquema de turnos alternante e matutino apresentaram tendência a mais altos índices de estresse e fadiga e menor secreção de cortisol ao longo do dia de trabalho do que aqueles dos turnos fixo e noturno. A fadiga mostrou-se significativa e positivamente correlacionada com a secreção total de cortisol no período da manhã. Conclusão: Os achados do presente estudo fornecem evidências de uma dessincronização do eixo HipotálamoHipófise-Adrenal em enfermeiros dos turnos alternante e matutino e, consequentemente, maior susceptibilidade destes ao desenvolvimento de doenças cardíacas, metabólicas e imunológicasNight-work and shiftwork are identified as maximizing negative effects on worker health, such as stress and fatigue, by making it difficult to adapt the circadian rhythm of cortisol to work. Objective: to investigate the effect of the fixed and alternating and nocturnal shifts of nurses on the occupational stress index, fatigue and circadian expression of salivary cortisol. Method: observational, cross-sectional and quantitative study based on Cooper\'s theoretical framework. Performed with 104 nurses from the emergency units and surgical center of a public teaching hospital in the State of São Paulo and another from Minas Gerais, from January to March, 2017. Stress and fatigue indexes were measured using two instruments, the Nurses\' Stress Inventory and the Fatigue Assessment Scale, both of which were validated and salivary cortisol quantification was performed by ELISA assay. The project was approved by the Research Ethics Committee under protocol. 55695416.7.0000.5393. Results: 66.67% of the nurses worked on alternating shifts and 39.39% were fixed on the morning shift. It was found that 50.8% of the nurses had a high stress index and 46.03% presented fatigue. There were no statistically significant associations between salivary cortisol index, shiftwork, fixed or alternating shift scheme, stress and fatigue. However, nursing professionals from critical units who worked in an alternating and morning shift schedule showed a trend towards higher levels of stress and fatigue and lower cortisol secretion throughout the workday than fixed and night shift workers. Fatigue was significantly and positively correlated to overall morning cortisol. Conclusions: The findings of the present study provide evidence of a hypothalamic-pituitary-adrenal axis desynchronization in nurses of the alternating and morning shift and, consequently, a greater susceptibility of these to the development of cardiac, metabolic and immunological diseases
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Borges, Flavio Notarnicola da Silva. "Trabalhadores de enfermagem: compreendendo condições de vida e trabalho e ritmos biológicos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/6/6134/tde-07032007-150549/.
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Objetivos. Este estudo teve como objetivos avaliar a capacidade para o trabalho, a estrutura temporal do sono, da 6-sulfatoximelatonina e do cortisol em trabalhadores em turnos da área de enfermagem. Métodos. Foram realizados dois estudos. Um estudo transversal para analisar a capacidade para o trabalho e o envelhecimento funcional precoce, através de questionários de condições de vida e trabalho e sintomas de saúde, da qual participaram 696 profissionais da área de enfermagem. E um cronobiológico com 19 trabalhadores do sexo feminino. Neste foram avaliados: o ciclo vigília-sono, através de actígrafos e protocolos diários de atividades; as concentrações da 6-sulfatoximelatonina e do cortisol; e a ritmicidade circadiana (avaliada utilizando a metodologia do ajuste dos parâmetros ritmométricos pela curva cosseno, método cosinor). Foi realizada coleta de urina em dois períodos de 4 dias consecutivos (com dias de trabalho e de folga,) para os trabalhadores noturnos, submetidos a turnos de 12 horas seguidas de 36 horas de descanso; e em um período de 8 dias consecutivos para os trabalhadores diurnos (6 dias de trabalho e 2 de folga). O grupo de 19 pessoas também foi analisado segundo a maior e menor tolerância ao trabalho em turnos. A tolerância ao trabalho em turnos foi avaliada utilizando 9 indicadores de saúde (escore de sonolência e fadiga, escore de concentração e atenção, escore da fadiga projetada sobre o corpo, escore geral da fadiga, SRQ20, escore de insônia, sonolência no trabalho, escore de problemas de sono) e disponibilidade do tempo livre. Resultados. A idade média da população era de 34,9 anos (dp + 9,5 anos), e esta era predominantemente feminina (87,8%), sendo que 40,6% começou a trabalhar antes dos 18 anos. As variáveis ligadas à capacidade para o trabalho inadequada foram: 1) sócio-demográficas: ter a responsabilidade pela renda familiar sozinho (OR=1,922), ter filhos ou menores sob a guarda (OR=1,558) e ter menos de 40 anos (OR=1,400). 2) ligadas ao trabalho: referir desconforto térmico (OR=1,548), referir ter sofrido abuso verbal pelo menos duas vezes no último ano (OR=1,670). 3) variáveis ligadas à saúde foram referir obesidade (OR=2,714), doenças de sono (OR=1,681), e fadiga (OR>3,771). No segundo estudo, as trabalhadoras noturnas apresentaram maior duração, e também melhor qualidade de sono noturno. Estas também referiram níveis de alerta significantemente mais elevados quando puderam cochilar durante o turno de trabalho. Foi encontrada uma grande variabilidade nos parâmetros rítmicos ao longo dos dias de trabalho e de folga. As concentrações médias de 6-sulfatoximelatonina e cortisol das trabalhadoras noturnas foram estatisticamente menores do que as encontradas em trabalhadores diurnos (p<0,001). Quando as trabalhadoras foram classificadas como mais e menos tolerantes ao trabalho em turnos, as trabalhadoras noturnas menos tolerantes referiram menor qualidade de sono e menores níveis de alerta. As concentrações médias de 6-sulfatoximelatonina e cortisol ao longo dos dias de trabalho e de folga variaram de modo distinto nos grupos de trabalhadoras mais e menos tolerantes ao trabalho em turnos. Conclusões. A capacidade de trabalho inadequada é resultado da associação de variáveis de múltiplas naturezas, tais como condições de vida e trabalho, hábitos e estilos de vida e à organização do trabalho. O cochilo durante o turno noturno de trabalho mostrou ser efetivo na manutenção dos níveis de alerta durante o trabalho noturno. As trabalhadoras noturnas apresentaram menores concentrações médias de 6-sulfatoximelatonina quando comparadas as trabalhadoras diurnas, o que pode estar relacionado à exposição à luz durante o turno noturno de trabalho. As trabalhadoras noturnas apresentaram menores concentrações de cortisol quando comparadas as trabalhadoras diurnas, o que pode estar relacionado à maior fadiga referida por estas trabalhadoras. Os ritmos de 6-sulfatoximelatonina e cortisol têm comportamentos diferentes nos grupos de trabalhadoras mais e menos tolerantes ao trabalho em turnos, mas nenhum padrão pode ser definido, uma vez que existe uma grande variabilidade individual.Objectives. The aim of this study was to evaluate work ability and biological rhythms of health care shiftworkers. Methods. To evaluate the work ability it was designed an epidemiological approach using a comprehensive questionnaire which included working and living conditions and health symptoms. 696 health care shiftworkers participated in this study. A sub sample of 19 female registered nurses and nurse aides/technicians were invited and agreed to participate in the chronobiological evaluation. Workers answered daily logs and wore actigraphs (Ambulatory Monitoring) to monitor activity and evaluate rest and waking periods along data collection. Urine samples were collected and voided volumes were measured during two periods of four consecutive days (working days and days off) of night workers, submitted to 12 hour night shifts followed by 36 hour off, and during one period of 8 consecutive days (six working days and two days off). It was also evaluated the 6-sulphatoxymelatonin and cortisol concentration, and their circadian rhythmicity using the Cosinor method. These 19 nurses were evaluated as more or less tolerant to shiftwork. The tolerance to shiftwork was evaluated by 9 health scores(dull and sleepy score, decline of working motivation, projection of fatigue to some parts of the body, general fatigue score, Self-Report Questionnaire (SRQ-20 score), insomnia score, sleepiness score, sleep disturbances score) and availability of free time. Results. Mean age of the respondents was 34.9 years, most of them female (87.8%) and 40.6% entered labor force before 18 years old. The socio-demographic factors associated to inadequate work ability were: income responsibility - sole breadwinner (OR=1.922), raising kids (OR=1.558), age group (under 40 years old) (OR=1,400). Factors associated with working conditions were: thermal discomfort (OR=1.548), and verbal abuse (OR=1.670). Obesity (OR=2.14), sleep problems (OR=1.681) and fatigue (OR>3.771) were health outcomes associated to inadequate work ability. Night workers showed longer mean sleep duration and referred better sleep quality to nocturnal sleep. These workers also reported higher alertness level when they nap during the night shift. Mean concentration of 6-sulphatoxymelatonin and cortisol among night workers were significantly lower than the day workers concentrations (p<0,001). When workers were classified into more and less tolerant to shiftwork, the less tolerant night workers referred worst sleep quality and lower alertness levels. The mean concentration of 6-sulphatoxymelatonin and cortisol, during working days and days off, showed distinct behavior in the two groups. It was found a great variability of the rhythmic parameters during working days and days off. Conclusions. Inadequate work ability was associated with a number of variables present at work and living conditions. Strategy of taking naps during night work was effective to maintain the alertness levels during work. Night workers 6-sulphatoxymelatonin mean concentrations were lower than day workers concentration. This might be related to light exposure during the night shift. The higher reported fatigue by these workers might explain the lower cortisol mean concentration presented by night workers when compared to day workers. The rhythms of 6-sulphatoxymelatonin and cortisol showed different behaviors when compared more and less tolerant workers, but any standard behavior could be observed since there is a great individual variability.
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Hultgren, Björn, and Alexander Sjösten. "Skiftarbetets påverkan på den upplevda stressen : - en undersökning inom vården." Thesis, Högskolan i Halmstad, Sektionen för hälsa och samhälle (HOS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-22384.
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Abstract The purpose with this study was to get knowledge if there are any possible differences in, and correlation between, experienced stress, experienced demands, experienced control and experienced social support in correlation to shiftwork. The study was made at two central hospitals in south of Sweden and had 90 participants (78 women and 12 men) that answered a questionnaire in the current variables. The result in experienced stress showed that there were no differences between shift workers. The results showed a difference between the day- and the nightshift in the correlation between control and stress. The writers speculates that the reason why the nightshift experience high stressvalues with high control can depend on the lack of presence by higher managers, compared with the dayshift.Syftet med studien var att studera eventuella skillnader i, och samband mellan, upplevd stress, upplevda krav, upplevd kontroll samt upplevt socialt stöd i samband med skiftarbete. Arbetet genomfördes på två centralsjukhus i södra Sverige med 90 deltagare (78 kvinnor, 12 män) som besvarade ett frågeformulär rörande de aktuella variablerna. Resultatet vad det gäller upplevd stress visade att det inte finns någon skillnad mellan de olika skiften. Resultatet visade på en skillnad mellan dagtid och nattarbetare, den gällde vilket samband kontrollen hade med den upplevda stressen. Att nattarbetare upplever ett samband mellan hög stress och hög kontroll spekulerar författarna kan bero på att chefer inte finns tillgängliga i samma utsträckning som för dagtidsarbetarna.
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Bento, Paulo Cesar Barauce. "Qualidade do sono, das relações sociais e da saúde, de acordo com a percepção dos trabalhadores em turno e noturno." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/5226.
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O presente estudo trata da organização dos horários de trabalho em turnos fixos, analisando seu impacto na qualidade do sono, na utilização do tempo livre pelo trabalhador e de aspectos relacionados à sua percepção quanto à saúde. A pesquisa foi realizada com auxiliares do setor de impressão e acabamento de uma gráfica e editora localizada na cidade industrial, em Curitiba no estado do Paraná. Para avaliar a qualidade do sono, das relações sociais e da saúde, utilizou-se a versão traduzida do Standard Shiftwork Index (SSI) (JAFFE; SMOLENSKI; WUN, 1996). Para a identificação do cronotipo (vespertinidade/matutinidade) foi utilizado o questionário de Horne e Ostberg (1976). Os resultados demonstraram não haver diferenças significativas entre os três turnos quando comparados os valores médios dos escores de cada constructo, com exceção para as atividades sociais e familiares. Quando analisadas separadamente, cada questão do SSI referente ao sono, algumas tendências indicaram que quando o cronotipo é relacionado com o turno de trabalho, existem percepções diferentes quanto à qualidade do sono. Foi constatado também nos três turnos um anseio dos trabalhadores por um dia a mais de folga na semana, pois o descanso semanal não é suficiente para reparar a fadiga ocasionada pelo trabalho, principalmente para os trabalhadores do terceiro turno.The present study analyses the organization of work shifts and their impact on sleep quality, on free time allowed by the work shift for social and family activities, and on specific health aspects perceived by the worker. The subjects of the study were workmen at a printing and publishing company in Curitiba´s Industrial District. In order to evaluate the quality of sleep, social relations, and health, the translated version of the Standard Shiftwork Index (SSI) (JAFFE; SMOLENSKI; WUN, 1996) was employed. The chronotype (evening / morning) was evaluated by use of the Horne and Ostberg (1976) questionary. Results showed no meaningful differences between the three shifts, when comparing average values of the scores for each construct, except for social and family activities. When each SSI sleep related question was analysed separately, there were trends which indicated that when the chronotype is related to work shift, there are different perceptions of sleep quality. A common wish of the workpeople in all three shifts is one extra day off during the week, since it is felt that the weekly rest is not enough to repair work related fatigue, especially for those in the third shift.
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Dos, Santos Maria, and Maria Malmström. "Sjuksköterskan, skiftarbetet och hälsan En litteraturstudie om sjuksköterskans anpassningsbarhet till skiftarbete." Thesis, Högskolan i Borås, Institutionen för Vårdvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19739.
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Från att ha setts som ett kall har synen på sjuksköterskeyrket successivt förändrats till att vara en profession med helt nya krav. Vi lever idag i ett 24-timmars samhälle och bedriver sjukvård dygnet runt. Att arbeta på oregelbunden arbetstid – skiftarbete, har många negativa effekter på hälsan. Dygnsrytmen rubbas, och kan ge biologiska, fysiologiska och sociala störningar vilket gör att sjuksköterskans livsvärld påverkas och därmed också hennes hälsa vilket kan leda till lidande och utmattningssymtom. Skiftarbete är en vanlig företeelse inom sjuksköterskeyrket. Syftet med studien är att undersöka och belysa om det finns åtgärder som minskar hälsoriskerna för skiftarbetande sjuksköterskor. Metoden som använts är en litteraturstudie som bygger på kvantitativa och kvalitativa artiklar. I resultatet redovisas fem huvudgrupper där åtgärder kan vidtas; sjuksköterskans arbetsmiljö, sjuksköterskans stöd, arbetsschemats utformning, sjuksköterskans egenvård och ansvar och sjuksköterskans tolerans för skiftarbete. I diskussionen belyses åtgärderna och dess förtjänster men även motsatsförhållanden och diskrepanser mellan olika forskningsresultat. Arbetstiderna i vårt samhälle är under förändring och tendensen går mot kompaktare men också flexiblare arbetstider, mycket beroende på EU.Program: Fristående kurs
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Lewis, Skoglund Jim, and Aron Steinsson. "Tvåvaktssystem : En kvalitativ undersökning om förutsättningar för sunda vanor i tvåvaktssystem." Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-52703.
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Personer som utför skiftarbete ingår i en riskgrupp för hälsorelaterade påfrestningar som resultat av en svårighet att utveckla personliga rutiner för kost, vila och friskvård. Nautiker som arbetar på fartyg där tvåvaktssystem om sex timmar tillämpas ingår således i denna riskgrupp där arbetet i regel förläggs koncentrerat över en längre tidsperiod. I denna studie presenteras en undersökning om hur personer med erfarenhet av tvåvaktssystem upplever förutsättningarna för att skapa sunda rutiner för vila, kost och friskvård. Resultatet är en berättelse om upplevda förutsättningar och i det har följande två intressanta slutsatser framkommit: Respondenterna upplever att frivaktens teoretiska tidsrymd för återhämtning inte överensstämmer med verkligheten varpå sömn och kost prioriteras medan behovet av friskvård blir lidande. Personliga rutiner är avgörande men förutsättningarna för att skapa sunda rutiner för vila, kost och friskvård står i direkt relation till möjligheten att få sin frivakt ostörd från beordrade driftrelaterade arbetsmoment.Persons that perform shift work are part of a risk group for health related stress as result of difficulties with developing personal routines for eating, sleeping and physical wellness. Sailors that work in ships where a two watch system with 6 hour watches is applied are therefore included in this risk group where work is generally concentrated over an extended period of time. This study presents an investigation on how people with experience in the two watch system with six hour watches, experience the conditions for creating healthy routines for sleep, diet and physical wellness. The result is a story about the perceived opportunities in which the following two interesting conclusions emerged: respondents feel that the off duty period's theoretical timeframe for regeneration doesn't correspond to reality in which the time does not suffice. Hence, sleep and nutrition is prioritized while the need for physical wellness suffers. Personal routines are essential, but prerequisites for developing healthy routines for sleep, diet and wellness are directly related to the possibility of having the off duty period undisturbed from ordered operational tasks.
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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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Bahougne, Thibault. "Perturbation de la rythmicité circadienne : impact sur la fonction reproductive de souris femelles." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAJ001.
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Chez les mammifères femelles, la fonction reproductive dépend à la fois d’une horloge biologique synchronisée par le cycle lumière/obscurité et par un équilibre entre le rétrocontrôle négatif et positif des œstrogènes, dont les concentrations varient en fonction de la maturation folliculaire. Chez les femmes, un nombre croissant d’études signalent un impact négatif des environnements chronodisruptifs, comme le travail posté / de nuit, sur la fertilité. Les objectifs de mon travail étaient d’étudier les effets d’un décalage de phase unique ou chronique sur les cycles reproducteurs de souris (C57BL/6J) femelles adultes. Dans ce but j’ai 1) mis au point un modèle de suivi longitudinal (sur plusieurs mois) de la sécrétion de LH le jour du proestrus sur des individus uniques ; 2) analysé les effets d’une avance ou d’un retard de phase unique (10h) sur les cycles estriens et l’occurrence du pic préovulatoire de LH ; 3) analysé les effets d’avance/retard de phases chroniques (jusqu’à 9 mois) sur les cycles estriens, le pic préovulatoire de LH et la fertilité ; 4) mis au point d’injection intra-cérébro-ventriculaire (ICV) de peptides associée au suivi individuel de LH afin de proposer des méthodes de resynchronisation du pic préovulatoire de LH chez des souris soumises à des déphasages. Mes travaux montrent qu’une avance ou un retard de phase unique perturbe peu le cycle reproducteur des souris femelles jeunes tandis qu’un décalage chronique altère fortement à la fois la régularité des cycles estriens, la sécrétion préovulatoire de LH et la fertilité. Ces données fondamentales démontrent un impact négatif de la perturbation chronique des cycles journaliers sur l'axe reproducteur des souris femelles. Une extrapolation de nos données fondamentales chez la femme, notamment dans un contexte de travail posté, est à l’heure actuelle prématurée. Cependant, au vu de nos résultats, une étude prospective chez la femme est indispensableIn female mammals, cycles in reproductive function depend on both a biological clock synchronized to the light/dark cycle, and a balance between the negative and positive feedbacks of estradiol which concentration varies during ovary maturation. In women, studies report that chronodisruptive environments, notably those experienced in shiftwork conditions, may impair fertility and gestational success. The objective of this study was to explore, in female mice, the effects of shifted light/dark cycles on both the robustness of the estrous cycles and the timing of the preovulatory luteinizing hormone (LH) surge, two hallmarks of mammalian reproductive health. When mice were exposed to a single 10 h-phase advance or 10 h-phase delay, the occurrence and timing of the LH surge and estrous cyclicity were recovered at the third estrous cycle. By contrast, when mice were exposed to a chronic shift (successive rotations of 10 h-phase advance for 3 days followed by 10 h-phase delay for 4 days), they exhibited a severely impaired reproductive activity. Most mice had no preovulatory LH surge already at the beginning of the chronic shift. Furthermore, the gestational success of mice exposed to a chronic shift was reduced since the number of pups was two times lower in shifted as compared to control mice. In conclusion, this study reports that female mice exposure to a single-phase shift has minor reproductive effects whereas exposure to chronically disrupted light/dark cycles markedly impairs the preovulatory LH surge occurrence, leading to reduced fertility
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Loterio, Claudia Paulich. "Percepçäo de comandantes de Boeing 767 da aviaçäo civil brasileira sobre as repercussöes das condiçöes de trabalho na sua saúde." reponame:Repositório Institucional da FIOCRUZ, 1998. https://www.arca.fiocruz.br/handle/icict/4865.
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Previous issue date: 1998O organismo humano apresenta uma ritmicidade de eventos bioquímicos, fisiológicos e comportamentais durante as 24 horas do dia, fazendo com que o mesmo tenha peculiaridades distintas nos diferentes horários diurnos e noturnos. Esta ritmicidade circadiana encontra-se intimamente ligada a sincronizadores externos: ciclo claro/escuro; ritmos sociais; a organizaçäo temporal da atividade laborativa do indivíduo, dentre outros. A organizaçäo temporal do trabalho dos aeronautas caracteriza-se pela alternância dos seus turnos, o que em última análise, significa dizer que este trabalhador muitas vezes desempenha suas atividades profissionais em diferentes momentos do dia e da noite. Esta inversäo de horários de repouso por momentos de trabalho acarreta alteraçöes na ritmicidade biológica. Objetiva-se investigar a percepçäo de comandantes, da aviaçäo civil brasileira, que realizam jornadas transmeridionais sobre as repercussöes que estas condiçöes de trabalho podem ter sobre sua saúde. Para a coleta dos dados, foram distribuídos questionários para todos os comandantes de Boeing 767 da base Rio de Janeiro, das companhias VARIG e Transbrasil. Do total de 87 questionários enviados, obteve-se um retorno de 25. Os resultados demonstraram que as condiçöes de trabalho dos comandantes apresentam sérias e inúmeras implicaçöes sobre a sua saúde. A sensaçäo de fadiga, as alteraçöes do ciclo sono-vigília e dos hábitos alimentares e o afastamento familiar foram os fatores que mais apareceram no relato dos comandantes como sendo os mais comprometidos, causando consequências como sonolência, distúrbios gratrointestinais, comprometimentos na vida familiar como divórcios, dentre outros. Com o intuito de minimizar estes sintomas, os comandantes desenvolveram algumas estratégias como dormir assim que chegam ao local de destino, praticar algum tipo de atividade física e seguir os horários do local, que säo utilizadas com frequência e, segundo seus próprios relatos, com êxito no que se propöem.
The human body presents a rhythmicity of biochemical, physiological and behavioral events throughout the 24 hours of a day. It means that this body has different peculiarities during the day and others at night. This circadian rhythmicity is closely linked to “zeitgebers” (external synchronizers): sleep/wake cycle, social rhythms, shiftwork and so on. One of the most important characteristics within the aviation profession is the alternation of shifts, which means that the aeronauts have to develop their professional activities at different hours of the day and night. This inversion of work periods in lieu of resting ones results in rhythmicity changes. The aim of this study was to investigate the perception of Brazilian civil aviation captains and the influences of their type of work conditions upon their health. The data collection was made using questionnaires which were distributed to all Rio de Janeiro-based Boeing 767 captains employed by VARIG and Transbrasil during the research period. From all the 87 questionnaires sent, 25 returned. The results showed that flight captains` working conditions present several and serious implications on their health. The fatigue, the changes both in the sleep/wake cycle and in the eating habits and the deleterious effects on social events were the aspects cited by the captains as being the most affected ones causing consequences like sleepiness, gastro-intestinal disturbances, relationship difficulties, among others. In order to minimize these symptoms the captains developed some strategies like sleeping as soon as they arrive at their destination, practicing some physical activities and following the local time, which are used very often and successfully.
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Tanmina, Azad. "Promotion of Physical Activities of NightShift Nurses with Gamification : A Study of Investigating of Physical Activity among Night Shift Nurses and PromotingGamification." Thesis, KTH, Medicinteknik och hälsosystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290600.
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This study shows the investigation of physical activeness among the nurses whowork in night shifts in hospitals and motivates them to do physical activities in theform of gamification in their working place. A qualitative approach is applied forgathering the data in the form of interviewing nurses to inquiry the problems andtried to find out the real opinions and scenarios related with physical inactivenessbased on the nurse’s interpretation. Working-time, working-loads, leisure-time,behaviors towards physical activity, laziness, less knowledge about voluntarymovements are coming out from the findings of this study. This paper suggests someactions such as walking, doing physical exercises, playing games etc. to encouragenurses to do more physical activities in a fun way in the workplace. A fun game,called ‘Healthy steps’ is designed based on the suggested actions in the form ofgamification is presented in this paper to promote physical activity at workplace andto encourage the nurses to participate lo lead a healthy lifestyle.Denna studie visar undersökningen av fysisk aktivitet bland sjuksköterskorna somarbetar på nattskift på sjukhus och motiverar dem att göra fysiska aktiviteter i formav gamification på sin arbetsplats. En kvalitativ metod tillämpas för att samla in datai form av intervjuande sjuksköterskor för att undersöka problemen och försökte tareda på de verkliga åsikterna och scenarierna relaterade till fysisk inaktivitet baseratpå sjuksköterskans tolkning. Arbetstid, arbetsbelastning, fritid, beteende mot fysiskaktivitet, lathet, mindre kunskap om frivilliga rörelser kommer fram från resultatenfrån denna studie. Denna uppsats föreslår några åtgärder som att gå, göra fysiskaövningar, spela spel etc. för att uppmuntra sjuksköterskor att göra mer fysiskaaktiviteter på ett roligt sätt på arbetsplatsen. Ett roligt spel, kallat ‘Healthy steps’ ärutformat baserat på de föreslagna åtgärderna i form av gamification, presenteras idenna uppsats för att främja fysisk aktivitet på arbetsplatsen och för att uppmuntrasjuksköterskorna att delta för att leva en hälsosam livsstil.
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Sawyer, Tiffoney L. "The effects of reversing sleep-Wake cycles on mood states, sleep, and fatigue on the crew of the USS John C. Stennis /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FSawyer.pdf.
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Thesis (M.S. in Applied Science (Operations Research))--Naval Postgraduate School, June 2004.Thesis advisor(s): Nita Lewis Miller. Includes bibliographical references (p. 103-107). Also available online.
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Zhang, Zhi-Pei, and 張志培. "THE SURVEY OF SHIFTWORK ADJUSTMENT OF SHIFTWORKER IN TAIWAN." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/60341156329510746363.
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Potgieter, Tracy Elizabeth. "Hardiness and tenure in shiftwork as predictive variables for coping with shiftwork." 1996. http://hdl.handle.net/10500/15808.
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The aim of this study was to establish whether hardiness and tenure are predictive
variables for coping with shiftwork.
The extent of shiftwork and shiftwork research has expanded internationally in the
past decade. It has been established that shiftwork has a negative effect on
shiftworkers who are predisposed to certain strain symptoms such as inefficiency,
impaired health and domestic problems. However, certain inter individual
differences do moderate coping with shiftwork through a process of cognitive and
behavioural protective acts which modify the stressful situation and neutralise the
experience of problems.
Using questionnaires (Biographical, Hardiness Index and Coping with Shiftwork
Questionnaire), a sample group of 75 cases was analysed. A 95 percent
confidence level was used throughout with a multiple stepwise regression analysis
computed. The significant r2 value = 0.18. Focus group discussions were
conducted to· add qualitative information to the areas of social, domestic, work
and sleep problems as well as coping strategies.
The predictive variables were regressed onto a number of criterion variables,
namely coping with shiftwork, work, sleep, domestic and social problems, as well
as engagement and diseng.agement strategies including both strategies in all four
domains (work, sleep, social and domestic).
It was found that hardiness and tenure are not predictive variables for coping with
shiftwork. However, hardiness, commitment and challenge are predictors for
disengagement strategies so that hardy, challenged and committed individua1s will
use less disengagement coping strategies and more specifically, use less domestic
disengagement coping strategies.
The research established hardiness as an additional personality variable linked to
a primary scale of coping with shiftwork, namely disengagement. The longer term
adjustment of shiftworkers (through tenure) was not established.
Recommendations were made for targeted shiftwork coping programmes and more
extensive classical shiftwork research in South AfricaEconomics and Management Sciences
M.A. (Industrial Psychology)
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McLaughlin, Catherine A. "Seasonal variation in adaptation to shiftwork /." 2005. http://ir.lib.sfu.ca/handle/1892/690.
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Chumroum, Suruedee. "Rotating shiftwork at Mae Moh Mine, Thailand." 1991. http://catalog.hathitrust.org/api/volumes/oclc/32297465.html.
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Thesis (M.S.)--University of Wisconsin--Madison, 1991.Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 120-124).
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Lehrer, Andrew Marshall Holahan Charles J. "Shiftwork stress resistance, health & performance a predictive, integrative model /." 2005. http://repositories.lib.utexas.edu/bitstream/handle/2152/1607/lehrera46122.pdf.
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Lajoie, PASCALE. "Shiftwork, sleep disturbances and cardiometabolic risk in female hospital employees." Thesis, 2013. http://hdl.handle.net/1974/8312.
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Background: Epidemiologic evidence supports the association between shiftwork and the development of cardiovascular disease. Sleep disturbances are associated with a variety of adverse cardiometabolic outcomes and they may lie on the causal pathway between the exposure to shiftwork and cardiovascular disease.
Objectives: 1) To describe sleep quality in a group of shift-working and day-working female hospital employees; 2) To determine the association between shiftwork status and sleep disturbances in this group and to determine the effect of lifetime exposure to shiftwork on current sleep disturbances; and 3) To explore whether sleep disturbances mediate the relationship between shiftwork and cardiometabolic risk.
Methods: A cross-sectional study was conducted among female hospital employees: participants were 132 women working only during the day, and 98 women who worked a shift schedule of two 12-hour days, followed by two 12-hour nights and five days off. Sleep quality was assessed with the Pittsburgh Sleep Quality Index questionnaire. The primary outcome of interest was the metabolic syndrome defined in accordance with the 2009 Joint Interim Studies consensus statement.
Results: Shiftwork was associated with poor sleep latency (odds ratio (OR)= 2.08 95% CI: 1.11-3.92), poor sleep efficiency (OR=2.35 95% CI: 1.21- 4.54), and poor global sleep quality (OR=1.88 95% CI: 1.02-3.49), while the impact of past shiftwork history was inconclusive. The OR for the association of shiftwork with the metabolic syndrome was 2.00 (95% CI: 0.89-4.51), and there was no evidence of mediation by sleep disturbances in the relationship of shiftwork and the metabolic syndrome.
Conclusion: In this study, a rapid forward rotating 2-shift system is associated with self-reported poor sleep quality, while the long-term effects of sleep disturbances on cardiometabolic risk requires further study.Thesis (Master, Community Health & Epidemiology) -- Queen's University, 2013-09-24 21:16:38.768
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Lehrer, Andrew Marshall. "Shiftwork stress resistance, health & performance: a predictive, integrative model." Thesis, 2005. http://hdl.handle.net/2152/1607.
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Hsiao, Cheng-Wen, and 蕭承雯. "Investigation of work stress, shiftwork, fatigue and health status among manufacturing workers." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/cm686t.
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Shiau, Guei Rung, and 蕭桂榮. "Investigation of Sleep Quality, Stress, Fatigue and Relevant Biological Markers among Shiftwork Nurses." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/72708893461687453818.
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碩士長榮大學
職業安全與衛生研究所
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In the human body, hypothalamus controls our 24 hours circadian rhythm, but shiftwork tends to interfere with this regular rhythm and causes adverse health effects among shiftworkers. This study, designed longitudinally, was conducted to investigate the relationship between sleep quality, work stress, fatigue and relevant saliva biological markers among shift workers. Study subjects were purposively recruited from shiftwork nurses in a teaching hospital from southern Taiwan. Shiftwork nurses, aged 20-45, currenly working in a hospital ward and with at least one-year shiftwork experience, were invited to participate. Data collection was completed on three different days, as the following: the first day of a day shift after returning from at least two days of off day; the third day of a day shift; and the third day of a night shift. On each day of data collection, a questionnaire was completed during mid-day break and saliva specimens were collected at 8am and 4pm, respectively. Saliva specimen was analyzed using Enzyme-linked immunosorbent assay and numerical data was analyzed by SPSS statistical software. The results showed that night shift workers were significantly higher on the average score of “work demand” scale than off and day shift workers; while compared to off and day shift workers, night shift workers had higher fatigue scores and greater proportion of sleep problems on the previous night, the discrepancies were not statistically significant. Nevertheless, fatigue was closely related to long-term sleep problems on all shifts but was merely related to work demand on day shift. On off and day shift, average saliva cortisol concentrations were both higher in the morning and lower in the afternoon; as a contrary, concentration on night shift was lower in the morning and higher in the afternoon. Poor sleep quality and fatigue during off day were related to decreased concentration of cortisol; while elevated work demand increased afternoon cortisol concentration on night shift. Concentration of Saliva TNF-α was lower in the morning and higher in the afternoon on off shift; while on night shift TNF-α concentration was higher in the morning and lower in the afternoon. Concentration of TNF-α and IL-6 were correlated to each other on off day morning, night shift morning and evening. Concentration of cortisol was negatively correlated with IL-6 on off day morning and positively correlated with TNF-α on night shift morning. Nurses who work on night shift are affected by the circadian rhythm and work demand, therefore they might have greater potentials for sleep problems, fatigue and even adverse health effects. Hence, for long-term night shift nurses, management should follow their health conditions closely and provide workplace health promotion.
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Ely, David Clark. "The effects of shiftwork on the performance of watchstanders at Coast Guard communication stations." Thesis, 1987. http://hdl.handle.net/10945/22772.
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An analysis of a Coast Guard theory and research on shiftwork is documented and discussed to provide background for the analysis. An examination is made to evaluate function of location within the existing watch schedule. A survey is conducted among watchstanding personnel to examine their opinions personnel performance as a schedule and relevant differences between performance watch system is presented. Current and motivations towards the existing watch factors. Results indicate that there are minor during day watches and performance Similarly, the study indicated that performance within a given watch declines as time on watch increases for day watches during night watches, only; this pattern does not hold for night watches.
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Hung, Hui Ching, and 洪慧菁. "The Impact of Rotational Shiftwork on Sleep Quality and Psychological Health of Female Nurses." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/x2b9by.
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Bernardo, Diana Catarina Pereira. "Tolerância ao trabalho por turnos em profissionais de emergência médica pré-hospitalar: projeto de investigação e estudo de adaptação linguística da escala de Rastreio da Perturbação do Trabalho por Turnos (versão portuguesa)." Master's thesis, 2020. http://hdl.handle.net/10316/94582.
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Dissertação de Mestrado Integrado em Psicologia apresentada à Faculdade de Psicologia e de Ciências da EducaçãoA presente dissertação consiste na proposta de um projeto de investigação sobre a tolerância ao trabalho por turnos em contexto de emergência médica pré-hospitalar, e na adaptação linguística, para português europeu, do Questionário de Rastreio da Perturbação de Trabalho por Turnos (RPTT). O trabalho por turnos (TT) é um regime de trabalho exigente e cada vez mais presente, nomeadamente na área da saúde e emergência médica, mas poucos são os estudos em profissionais de emergência pré-hospitalar. O trabalho por turnos ou em horário não convencional associa-se a variadas consequências, ao nível da dessincronização dos ritmos circadianos e comprometimento do sono, vida social e familiar, saúde e bem-estar. Relativamente ao protocolo de investigação, propomo-nos recorrer a uma combinação de medidas contidas na bateria Estudo do Trabalho por Turnos (ETT)-versão reduzida / Estudo Padronizado do Trabalho por turnos (EPTT) - versão longa, de forma a avaliar de modo compreensivo um conjunto de variáveis associadas à tolerância ao TT, como a vida social e doméstica, padrões de sono, fadiga, saúde e bem-estar. O protocolo integrará ainda a Escala de Sonolência de Epworth para avaliar a sonolência percebida e a Escala de Preferências (PS-6) para melhor discriminar a matutinidade-vespertinidade. Relativamente aos padrões de sono, pretendemos compreender que características individuais (e.g. matutinidade-vespertinidade/flexibilidade, idade) e da personalidade (e.g. neuroticismo) se relacionam com a tolerância ao TT de profissionais de emergência pré-hospitalar. O impacto ao nível da saúde e bem-estar será avaliado pelo auto-relato de problemas físicos, nomeadamente, cardiovasculares ou digestivos, e de problemas psicológicos, nomeadamente perturbações psiquiátricas e ansiedade. Tendo em conta estudos anteriores espera-se que indivíduos com cronótipo matutino, maior idade, neuroticismo mais elevado, dificuldade em tolerar a sonolência e com hábitos de sono rígidos apresentem maior dificuldade em lidar com o TT. Adicionalmente, antecipa-se que profissionais menos tolerantes ao TT tenderão a consumir mais álcool e a apresentar mais queixas físicas (e.g. cardiovasculares e gastrointestinais), mais sintomatologia depressiva e instabilidade de humor. Ao nível da vida social e familiar, o número de filhos e o ambiente vivido em casa parece influenciar também a tolerância. O protocolo de investigação será disponibilizado online (GoogleForms) ou em papel aos cerca de 250 profissionais (e.g, Técnicos de Emergência Médica Pré-Hospitalar, médicos, enfermeiros e psicólogos) afetos à Delegação Centro do Instituto Nacional de Emergência Médica.Numa segunda fase do projeto, propomos a realização de uma sessão formativa acerca de hábitos de sono (e.g. fadiga, distúrbios de sono, otimização de horários) nestes profissionais e nova aplicação, após um mês, das questões referentes à tolerância. Estas sessões, em estudos anteriores têm demonstrado uma eficácia de 42% na melhoria de hábitos de sono, níveis de atenção e de fadiga.Adicionalmente, e em estreita ligação com o projeto proposto, pretende-se proceder à tradução e validação, para português europeu, de uma escala breve (4 itens), de Rastreio da Perturbação do Trabalho por turnos, publicada em 2012, com boas qualidades psicométricas e que permite auxiliar na sinalização de potenciais situações de perturbação para posterior encaminhamento. Relativamente ao processo de adaptação linguística, apresentada no presente trabalho, o RPTT foi primeiramente traduzido por dois indivíduos independentes, para posterior comparação das traduções. Seguidamente, foi pedida a apreciação a peritos com experiência na área do TT e/ou do sono, sendo de seguida aplicada a escala, através do método de entrevista cognitiva/reflexão falada a indivíduos que trabalham em TT. Incorporadas algumas sugestões dos participantes, foram, novamente, consultados peritos e, por fim, definiu-se a versão final. Por último, foi realizada a retroversão por uma pessoa bilingue “cega” relativamente à versão original. Em suma, a versão portuguesa do RPTT revelou ser de fácil compreensão por indivíduos de diversas profissões, graus de escolaridade e faixas etárias. É necessário futuramente estudar as propriedades psicométricas da versão portuguesa deste instrumento através da sua aplicação numa amostra de trabalhadores por turnos.
Shift work implicates demanding work schedules, and is increasingly present in various sectors, especially in health and emergency medicine areas. However there are few studies on the topic focused in pre-hospital emergency professionals. Night work, shift work, or working in atypical / non-standard schedules (e.g., staring working at 6:00; working until midnight), may result in various consequences including the desynchronization of circadian rhythms, impairments of sleep, social and family life, health and well-being. The present dissertation (I) describes a research project developed in order to study shift work tolerance in prehospital emergency medicine professionals, and (II) summarizes a pilot study on the translation and linguistic adaptation, into European Portuguese language, of a scale originally developed in English language – the Screening Questionnaire for Shift Work Disorder. (I) Regarding the research project, data will be collected using a standardized battery of tests, entitled Survey of Shiftworkers (short version) / Standard Shiftwork Index (original, longer version), in order to measure comprehensively a set of variables associated to or reflecting shift work tolerance, such as social and family life, sleep patterns, fatigue, health and well-being. Individual and personality characteristics considered in the battery, in particular morningness-eveningness, flexibility of sleeping habits, and neuroticism, will be given a special focus, given their potential association with sift work tolerance. The impact of shift work on health and well-being will be assessed using specific questions of the battery addressing the presence of physical problems, specifically digestive and cardiovascular complaints, and psychological problems, namely psychiatric symptoms and anxiety. In addition to the battery, we will also evaluate perceived drowsiness using The Epworth Sleepiness Scale, and we will add to the protocol a 6-item morningness-eveningness scale, the Preference Scale (PS-6).Considering previous research, it is expected that participants with higher morningness, older age, higher neuroticism, greater difficult overcoming sleepiness/drowsiness, and higher rigidity in their sleep habits, will display more difficulties tolerating shiftwork. It is also anticipated that individuals displaying intolerance to shift work, will report higher alcohol consumption, more health complaints (e.g. cardiovascular and gastrointestinal problems), higher depressive symptomatology and instability of mood. Social and family life will also be considered, given that the number of children and the family environment may also influence shift work tolerance.The battery of tests will be available in online (GoogleForms) or paper format to the 250 professionals (e.g. prehospital emergency medicine technicians, doctors, nurses and psychologists) from the Centre Delegation of the National Institute of Medical Emergency (INEM).In a second moment of the research, we aim to offer to professionals a psychoeducational session about sleep habits and shift work tolerance (e.g, addressing topics such as fatigue, sleep scheduling). A follow up assessment will be performed, after one month, focusing particularly on measures of sleep and shift work tolerance. This kind of training sessions, in previous studies has demonstrated an efficacy the 42% on improvement sleep habits and attention for fatigue levels.(II) Within the present dissertation, we also describe the translation and adaptation into European Portuguese language, of the Questionnaire to Screen for Shift Work Disorder, a brief scale published in 2012, aimed to signalling potential cases of shift work disorder. Briefly, an initial translation draft was separately performed by two researchers who afterwards agreed on a common version. Then, the translation was scrutinised by experts on sleep/shift work. The revised translation was then assessed by shiftworkers, using the “cognitive interview” method, and it was subsequently appreciated by experts again. Lastly, the obtained version was subjected to a “blind” back translation by a professional linguist. The Portuguese version obtained in the present study appears to be an easily understood scale, while remaining semantically equivalent to the original one. A future study of this scale, in articulation with the research protocol described above, is now needed in order to examine the psychometric properties of the Portuguese version in a sample of shift workers.
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Matos, Mariana Laranjo Pereira de. "Contributos da família na adaptação ao trabalho por turnos: a perspetiva do trabalhador." Master's thesis, 2021. http://hdl.handle.net/1822/75301.
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Dissertação de mestrado integrado em PsicologiaO suporte familiar tem demonstrado ser um fator fundamental na adaptação do trabalhador ao regime de trabalho por turnos. Tendo em consideração este papel central da família, o presente estudo tem como objetivo contribuir para que sejam identificadas estratégias que as famílias possam utilizar para ajudar na adaptação do trabalhador por turnos. Participaram 17 trabalhadores por turnos de ambos os sexos. A recolha de dados foi realizada através de uma entrevista semiestruturada, abordando temas como: perceção do trabalho por turnos, impacto do trabalho por turnos, adaptação ao trabalho por turnos e aspetos facilitadores da adaptação ao trabalho por turnos. As entrevistas foram analisadas através da Template Analysis, uma técnica de análise de dados qualitativos. Este estudo permitiu identificar estratégias familiares facilitadoras da adaptação, tais como: diminuição do ruído e das tarefas domésticas, ajuda na preparação das refeições, cedência de viatura familiar. O presente estudo possibilitou também evidenciar a importância do suporte familiar na adaptação dos trabalhadores por turnos.
Family support has proved to be a key factor in the adaptation of workers to shiftwork. Taking into account this central role of the family, this study aims to contribute to identifying strategies that families can use to help shiftworkers adaptation. Seventeen shiftworkers of both genders participated. Data were collected through a semi-structured interview, addressing topics such as: perception of shiftwork, impact of shiftwork, adaptation to shiftwork, and aspects facilitating the adaptation to shiftwork. The interviews were analysed through Template Analysis, a qualitative data analysis technique. This study allowed identifying family strategies that facilitate the adaptation, such as: reduction of noise and domestic chores, help in meal preparation, and provision of a family car. This study also made it possible to highlight the importance of family support in the adaptation of the shiftworkers.
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Liaw, Yi-Woan, and 廖怡婉. "The Effects of Shiftwork on the Satisfaction in Quality of Work Life - as Applied to one Aviation Technology Corp." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/80256224194536461897.
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Costa, Daniela Filipa Machado da. "Trabalho por turnos e vida familiar e social: a perspetiva dos familiares." Master's thesis, 2016. http://hdl.handle.net/1822/43180.
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Dissertação de mestrado integrado em PsicologiaNas últimas décadas, a literatura tem privilegiado o estudo do impacto do trabalho por turnos na saúde dos trabalhadores a partir da perspetiva do próprio trabalhador. O presente estudo, tendo em conta tais constrangimentos, teve como principal objetivo contribuir para o aprofundamento da interferência do trabalho por turnos na vida familiar e social dos trabalhadores, segundo a perspetiva dos familiares. Participaram no estudo 403 cônjuges/companheiros de polícias portugueses, que responderam a um questionário online. Todos os polícias estavam submetidos a um sistema de turnos rotativos. Verificou-se que o trabalho por turnos tem impacto moderado a elevado em todas as áreas avaliadas da vida familiar e social, sendo que os participantes relataram maiores impactos na reorganização familiar e na vida social conjunta. Outras análises complementares revelaram ainda que os participantes relatam maior impacto do trabalho por turnos quando já realizaram tentativas anteriores de persuasão sobre os seus cônjuges/companheiros para mudança de horário de trabalho, quando têm filhos até seis anos em comparação com os participantes que têm filhos entre 13 a 18 anos e quando acham que o contacto insuficiente entre os cônjuges/companheiros(as) e os filhos, resultante dos horários de trabalho, é prejudicial para as crianças.
In recent decades, the literature has been focused on the study of the impact of shiftwork on workers' health from the worker's own perspective. This study, taking into account such constraints, aimed to contribute to the deepening of interference of shiftwork on family and social life of workers, according to the perspective of family members. Participated in the study 403 partners of portuguese police, who responded to an online questionnaire. All the police were subjected to a system of rotating shifts. It was found that shiftwork has moderate impact to high in all evaluated areas of family and social life, and the participants reported greater impacts on family reorganization and joint social life. Other complementary analyzes also revealed that participants reported greater impact of shiftwork when they made previous attempts at persuasions on their partners to change working hours, when they have children up to six years compared with participants who have children between 13-18 years and when they find that insufficient contact between partners and their children, resulting from working hours, is harmful to children.
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De, Waard Ilonka. "Skofwerk van getroude vroue as sistemiese ontwrigting of behoud : 'n ekologiese model." 1999. http://hdl.handle.net/10500/17985.
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Summaries in English and AfrikaansText in Afrikaans
Key terms in English and Afrikaans
Verskeie tekortkomings is in die bestaande konseptuele model en kwantitatiewe navorsingsliteratuur oor skofwerk geidentifiseer. Ontevredenheid met die oorvereenvoudigde oorsaak-gevolg-verklarings vir getroude vroue se skofwerkervaring het in die studie gelei tot die ontwikkeling van 'n ekologiese model van vroueskofwerk. Hierdie nuwe konseptuele model weerspieel 'n altematiewe benadering waar erkenning gegee word aan die bestaan van meervoudige realiteite wat mense in konsensus deur taal konstrueer. Die oogmerk met die ekologiese model is om, met inagneming van vroueskofwerkers se wyer konteks, patrone te ondersoek van hoe die verskillende beskrywings van getroude vroue se ervaring van skofwerk bymekaar pas. Daarmee kan 'n meer sistemiese begrip verkry word wat die kompleksiteit van menslike interaksie respekteer. Die ekologiese model van vroueskofwerk is ontwikkel as 'n hulpmiddel vir die waamemer om ryk, beskrywende ekologiese verhale te kan konstrueer van hoe getroude vroue se belewing van skofwerk tot sistemiese ontwrigting of behoud kan lei.
Several shortcomings have been identified in the existing conceptual model and quantitative research literature regarding shiftwork. Dissatisfaction with the oversimplified cause-effect-explanations for married women's shiftwork experience has led to the development of an ecological model of women shiftwork in this study. This new conceptual model reflects an alternative approach where recognition is given to the existence of multiple realities which are consensually created by people through language. The aim with the ecological model, by taking into account the broader context of women shiftworkers, is to search for patterns of how the different descriptions of women's experience of shiftwork fit together. This offers a more systemic view that respects the complexity of human interaction. The ecological model for women shiftwork is developed as an aid to the observer to construct rich, descriptive ecological stories about how married women's experience of shiftwork can lead to systemic disruption or conservation.
Psychology
M.A. (Clinical Psychology)
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Pereira, Joana Teixeira. "Trabalho por turnos e vida familiar e social: comparação da perspetiva trabalhador(a): cônjuge." Master's thesis, 2018. http://hdl.handle.net/1822/56001.
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Dissertação de mestrado em Psicologia AplicadaA investigação sobre o impacto do trabalho por turnos na vida familiar e social tende a privilegiar apenas a perspetiva do(a) trabalhador(a), sendo rara a investigação que compara a perspetiva de terceiros. Considerando esta limitação, o presente estudo contempla a perspetiva do cônjuge do trabalhador por turnos rotativos na compreensão do impacto do trabalho por turnos em dimensões da vida familiar e social, procurando avaliar se existem diferenças na perceção dos impactos entre os dois grupos. Participaram no estudo 102 pessoas, 51 trabalhadores de uma empresa do setor industrial e os respetivos cônjuges. Na recolha dos dados, foram aplicados dois questionários, um direcionado a cada grupo. Verificou-se um impacto moderado a elevado deste sistema de trabalho na maioria das dimensões avaliadas, tendo o maior impacto sido observado nos itens/domínios “contacto parental entre trabalhador e o(s) filho(s) durante a tarde” e “vida social conjunta”. Os dois grupos mostraram-se congruentes nos resultados, evidenciando apenas uma diferença marginalmente significativa no item “vida familiar ou pessoal do cônjuge”. Análises complementares indicam ainda diferenças significativas na perceção dos cônjuges com ou sem filhos no item “sentimentos do cônjuge acerca do trabalho por turnos” sendo que os primeiros exibiram uma avaliação mais negativa.
Research about the impact of shift work on family and social life tends to focus only on a worker’s perspective, while it rarely compares with third-party perspectives. Seeing this limitation, the present study contemplates the shift worker's spouse's perspective to understand the impact of shift work on family and social life dimensions, seeking to assess whether there are differences in the perception of impacts between the two groups. The study involved 102 people, 51 employees of an industrial company and their spouses. In data collection, two questionnaires were applied, one addressed to each group. There was a moderate to high impact of this work system in most of the dimensions evaluated, with the greatest impact being observed in both "parental contact between worker and child(s) during the afternoon" and "joint social life" items/domains. Both groups were congruent in the results, showing only a marginally significant difference in the "family or personal life of the spouse" item. Complementary analysis also indicates significant differences in the perception of spouses with or without children in "spouse’s feelings about shift work" item, the former showing a more negative evaluation.
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Bezuidenhout, Sussanna Maria. "'n Ergonomiese studie oor oorhoofse kraanoperateurs se werksomgewing en beroepsgesondheid." Diss., 1999. http://hdl.handle.net/10500/18091.
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Text in AfrikaansSummaries in English and Afrikaans
This study aims to investigate the relation between a crane operator in a slab handlingarea's experience of his/her work environment and occupational health. A study of the literature leads one to the conclusion that the nature of crane operators' work environment may cause health problems. According to the literature crane operators are high risk cases regarding musculoskeletal disorders. The empirical study affirms that there are risk factors present in the crane operator's work environment, which may influence his/her occupational health. It is statistically proven that there is a meaningful difference between crane operators with a negative experience of the work environment and crane operators with a positive experience of the work environment, and the amount of illnesses experienced by crane operators as well as their general health. Recommendations are made regarding training, adjustability and flexibility of the work station, job rotation, job expansion and enrichment, and social contact.
Die doel van die studie is om die verband tussen 'n kraanoperateur in 'n platblokhanteringsarea se ervaring van sy/haar werksomgewing en beroepsgesondheid te ondersoek. Die literatuurstudie lei tot die gevolgtrekking dat die aard van kraanoperateurs se werksomgewing aanleiding kan gee tot gesondheidsprobleme. Volgens die literatuur is kraanoperateurs hoerisikogevalle ten opsigte van spierskeletstelselbeserings. Die empiriese studie bevestig dat daar risikofaktore voorkom in die kraanoperateur se werksomgewing wat sy/haar beroepsgesondheid kan be"invloed. Statisties is bewys dat daar 'n betekenisvolle verskil is tussen kraanoperateurs met 'n negatiewe ervaring van die werksomgewing en kraanoperateurs met 'n positiewe ervaring van die werksomgewing en die hoeveelheid siektetoestande wat kraanoperateurs ervaar, en die algemene gesondheid van kraanoperateurs. Aanbevelings om risikofaktore te beheer word gemaak ten opsigte van opleiding, verstelbaarheid en buigbaarheid van die werkstasie, posrotasie, posverbreding en - verryking, en sosiale kontak.
Industrial Psychology
M. Com (Industrial Psychology)