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Paulo, Danilo Pazian [UNESP]. "Desenvolvimento de um dinamômetro biomédico ergonômico com comunicação com dispositivos móveis." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151081.
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Dinamômetros biomédicos são equipamentos utilizados para medir forças exercidas pelas mãos. Com o uso deste tipo de equipamento, é possível realizar avaliações biomecânicas das mãos de pacientes que após cirurgias, acidentes ou patologias osteomioarticulares, tiveram redução na sua capacidade de exercer forças com as mãos. O objetivo deste trabalho foi a implementação de um dinamômetro biomédico ergonômico, de fácil utilização, com capacidade de comunicação com diferentes tipos de dispositivos móveis, como smartphones e tablets. O projeto realizado se constitui no aprimoramento de duas versões anteriores de dinamômetros implementadas no Laboratório de Instrumentação Eletrônica e Engenharia Biomédica da UNESP –Campus de Ilha Solteira. Testes em voluntários utilizando o dinamômetro desenvolvido e um dinamômetro comercial da marca SAEHAN, e posterior análise estatística dos dados revelam uma excelente confiabilidade intra-examinador para o dinamômetro desenvolvido, com coeficiente de correlação intraclasse médio de 0,95 entre os diferentes grupos analisados, e de 0,98 para o dinamômetro SAEHAN. A análise estatística revela também uma excelente confiabilidade concorrente para as medidas realizadas pelo dinamômetro desenvolvido em relação às do dinamômetro SAEHAN, sendo de 0,93 para mãos dominantes e 0,92 para mãos não dominantes. Assim, o dinamômetro desenvolvido é confiável, válido e comparável com o dinamômetro SAEHAN quando adotados os mesmos procedimentos de exame de preensão palmar.
Biomedical dynamometers are equipment used to measure forces exerted by the hands. Using this type of equipment, it is possible to perform biomechanical evaluations of the hands of patients that after surgery, accidents or diseases have had a reduction in the ability to exert force with their hands. The objective of this work was the implementation of an ergonomic biomedical dynamometer, easy to use, with ability to communicate with different types of mobile devices such as smartphones and tablets. The project carried out constitutes the improvement of two previous dynamometers versions implemented in the Electronic Instrumentation and Biomedical Engineering Laboratory at UNESP - Ilha Solteira. Volunteer tests using the developed dynamometer and a commercial SAEHAN dynamometer, and subsequent statistical analysis of the data revealed an excellent intra-examiner reliability for the developed dynamometer, a mean of 0,95 among different groups analyzed, and a mean of 0,98 for the SAEHAN dynamometer. The statistical analysis also revealed an excellent concurrent reliability for the measurements performed by the dynamometer developed in relation to those of the SAEHAN dynamometer, being 0,93 for dominant hands and 0,92 for non-dominant hands. Thus, the developed dynamometer is reliable, valid and comparable with the SAEHAN dynamometer when the same grip strength examination procedures were adopted.
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Paulo, Danilo Pazian. "Desenvolvimento de um dinamômetro biomédico ergonômico com comunicação com dispositivos móveis /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151081.
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Orientador: Aparecido Augusto de CarvalhoResumo: Dinamômetros biomédicos são equipamentos utilizados para medir forças exercidas pelas mãos. Com o uso deste tipo de equipamento, é possível realizar avaliações biomecânicas das mãos de pacientes que após cirurgias, acidentes ou patologias osteomioarticulares, tiveram redução na sua capacidade de exercer forças com as mãos. O objetivo deste trabalho foi a implementação de um dinamômetro biomédico ergonômico, de fácil utilização, com capacidade de comunicação com diferentes tipos de dispositivos móveis, como smartphones e tablets. O projeto realizado se constitui no aprimoramento de duas versões anteriores de dinamômetros implementadas no Laboratório de Instrumentação Eletrônica e Engenharia Biomédica da UNESP –Campus de Ilha Solteira. Testes em voluntários utilizando o dinamômetro desenvolvido e um dinamômetro comercial da marca SAEHAN, e posterior análise estatística dos dados revelam uma excelente confiabilidade intra-examinador para o dinamômetro desenvolvido, com coeficiente de correlação intraclasse médio de 0,95 entre os diferentes grupos analisados, e de 0,98 para o dinamômetro SAEHAN. A análise estatística revela também uma excelente confiabilidade concorrente para as medidas realizadas pelo dinamômetro desenvolvido em relação às do dinamômetro SAEHAN, sendo de 0,93 para mãos dominantes e 0,92 para mãos não dominantes. Assim, o dinamômetro desenvolvido é confiável, válido e comparável com o dinamômetro SAEHAN quando adotados os mesmos procedimentos de exame de preensão... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Biomedical dynamometers are equipment used to measure forces exerted by the hands. Using this type of equipment, it is possible to perform biomechanical evaluations of the hands of patients that after surgery, accidents or diseases have had a reduction in the ability to exert force with their hands. The objective of this work was the implementation of an ergonomic biomedical dynamometer, easy to use, with ability to communicate with different types of mobile devices such as smartphones and tablets. The project carried out constitutes the improvement of two previous dynamometers versions implemented in the Electronic Instrumentation and Biomedical Engineering Laboratory at UNESP - Ilha Solteira. Volunteer tests using the developed dynamometer and a commercial SAEHAN dynamometer, and subsequent statistical analysis of the data revealed an excellent intra-examiner reliability for the developed dynamometer, a mean of 0,95 among different groups analyzed, and a mean of 0,98 for the SAEHAN dynamometer. The statistical analysis also revealed an excellent concurrent reliability for the measurements performed by the dynamometer developed in relation to those of the SAEHAN dynamometer, being 0,93 for dominant hands and 0,92 for non-dominant hands. Thus, the developed dynamometer is reliable, valid and comparable with the SAEHAN dynamometer when the same grip strength examination procedures were adopted.
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Hainbuch, Friedrich. "Grip strength training prevents falling /." Aachen : Shaker, 2008. http://d-nb.info/988058014/04.
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Zhang, Jing. "The correlation among three hand srength [sic] measurement methods : hand dynamometer." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1020143.
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The purpose of this study was to determine the correlation among three hand strength measurement methods: Hand dynamometer, MDD (Middle Digital Extension Isokinetic Dynamometer), and Cybex. Five students (2 males, 3 females) from Ball State University were asked to participate in this study. Both right and left lower arm data were collected from these subjects. A Cybex 340 (Lumax Cor.) was employed to determine wrist flexion and extension isokinetic peak torque, total work, and power at 30 degrees/second and 60 degrees/second. A MDD was used to determine third digit eccentric torque, work, and power. A hand dynamometer (Lafayette Instrument Co., Model 76618) was used to determine grip force. Pearson product moment correlation coefficients were used to determine correlation among these variables. Significant correlations were noted between isometric grip strength and isokinetic 30 and 60 degrees/second wrist flexion power, as well as between isometric grip strength and isokinetic 30 degrees/second wrist extensor power. The results of this study indicate there is very little relationship between the three clinically used measurement tools.School of Physical Education
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Clerke, Anita. "FACTORS INFLUENCING GRIP STRENGTH TESTING IN TEENAGERS." University of Sydney, 2006. http://hdl.handle.net/2123/3553.
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Doctor of PhilosophyThe aims of the Thesis were: to investigate and quantify the factors influencing the production of maximum isometric grip strength force in a sample of Australian teenagers when using JamarTM-like handgrip dynamometers; to determine the reliability of this measure over long and short retest intervals; to establish a database of anthropometric and strength values for this group and prediction equations for premorbid strengths to aid assessment of recovery in those with upper limb pathologies. The history of these handgrip dynamometers demonstrates that they have been employed in one form or another for over three hundred years and are still widely used today in hand rehabilitation and medical examinations. Many new types of dynamometers have been constructed subsequent to the ubiquitous JamarTM and have all been briefly reviewed here. Handedness (dominance) was thought to be a possible factor influencing grip strength performance and was later evaluated. But first, the Edinburgh Handedness Inventory was tested with 658 teenagers and 64 adults and confirmed to be a valid tool for assessing handedness. Its validity was improved by substituting the tasks of sweeping and opening the lid of a box for hammering and use of a screwdriver. Its excellent reliability (ICC = .78, p < 0.01) was confirmed with 45 teenagers and 45 adults. There were 235 teenagers who performed maximal isometric grip strength tests and from the results a local database was created. It was confirmed that the grip strength difference in males and females becomes significant after the age of 13 years, and that the average teenaged male is stronger than the average teenaged female by 11.2 Kg force (p < .01). Height, weight, BMI, hand dimensions, past upper limb injuries, degrees of handedness and exercise levels were measured and compared with known norms to establish that the grip strength tested sample of teenagers was representative of urban teenagers in Australia. The influence of handedness on maximal grip strength in dominant and non-dominant hands was unable to be completely ascertained due to the vast majority of the sample of teenagers being right-handed. Only 13 of the 235 teenagers used their left hand for most tasks, with another 20 using their left hands for a small majority of tasks. There was a grip strength bias towards the dominant hand of 2.63 kg force (p < .01). The most accurate way to predict the grip strength of one hand is by knowing the grip strength of the other hand. Prediction models found that 90% (R2 adj .902) and 70% (R2adj .702) of the variance in one hand could be accounted for by the grip strength of their other hand for male and female teenagers, respectively. Prediction equations were also created to assist in estimating the pre-morbid grip strength of teenagers suffering from bilateral hand injuries. If for the males, measurements for height and hand surface area were entered into these models, the grip strength of the dominant and non-dominant hands could be estimated with 62.6 and 63.5% of the variance between the real and predicted scores accounted for, respectively. For the females the prediction models using height and hand surface area could only account for 33.9 and 42.8% of the variances, with no other independent variables improving the prediction equations. The reliability of the maximal grip strength performance of 154 of these teenagers was retested after one or four weeks. A number of sub-group permutations were created for age, gender, retest time interval and handedness groups. The measures of grip strength for males were highly reliable with ICC (3,1) values ranging from .91 to .97. These measures were significantly higher than that obtained from the females, where reliability values ranged from .69 to .83. Handedness played a significant part in grip strength reliability. The dominant hand of right-handed teenagers achieved an ICC (3,1) of .97, as contrasted with the non-dominant hand of left-handers who attained a very poor ICC (3,1) of .27. The shape of the hands of the males did not influence their grip strength or their reliability values, which ranged from .954 to .973. The shape of female hands did not affect their ability to generate maximal grip strength, only its reliability. The females with hands shaped squarer-than-average had mean grip strength reliability values of ICC (3,1) at only .48, in contrast to those with longer-than-average hands who achieved a mean ICC (3,1) of .92. The handle shape of the dynamometer may disadvantage square-handed females, and this should be further investigated.
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Hainbuch, Friedrich [Verfasser]. "Grip strength training prevents falling / Friedrich Hainbuch." Aachen : Shaker, 2008. http://d-nb.info/1161313400/34.
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Freitas, Paulo Barbosa de. "Force coordination in object manipulation effects of load force direction and grasping technique /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 185 p, 2009. http://proquest.umi.com/pqdweb?did=1833642551&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Lau, Wai-shing Vincent. "Comparison of power grip and lateral pinch strengths between the dominant and non-dominant hands for normal Chinese male subjects of different occupational demand." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23339718.
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Li, Ke. "Measurement and analysis of grip strength using advanced methods." Troyes, 2009. http://www.theses.fr/2009TROY0038.
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La force de préhension palmaire est un indicateur précieux qui peut être utilisé pour décrire non seulement la fonction de la main mais également le statut global du membre supérieur voire du corps entier. Sa mesure reste plusieurs aspects à améliorer ou explorer. Cette thèse est une contribution au développement de nouvelles méthodes de mesure et d’analyse de la force de préhension palmaire. Après une analyse bibliographique approfondie, un nouveau dispositif adapté au milieu écologique est présenté. Cet outil, la Grip-Ball, consiste en un capteur de pression et un système de communication sans fil, dans une balle étanche et souple, ce qui permet de mesurer et transmettre la pression interne à la balle lors de son écrasement. Une deuxième étude s’attache à comparer un autre dispositif innovant, le Myogrip, adapté aux très faibles forces de préhension avec les deux dispositifs les plus utilisés (Jamar et Martin Vigorimètre). En outre, les effets de la position du coude et la taille de la poignée ont été testés pour ces trois dynamomètres. Le développement d’un modèle de prédiction basé uniquement sur la circonférence de la main fait l’objet d’une troisième étude, ce qui donne un modèle simple facilement utilisable en routine. Les trois derniers chapitres sont consacrés à la présentation de méthodes avancées de traitement du signal lors de contractions soutenues dans le temps: transformée de Hilbert-Huang, analyse fractale, analyse par récurrence. Ces méthodes ont montré leur aptitude à caractériser les effets de la fatigue, du tremblement, de la maladie ou de l’âge au cours de ces contractionsGrip strength is a valuable indicator that can be used to describe not only hand function, but also the overall functional status of the upper-limb strength or even of the entire body. A number of improvements could be made. The aim of this thesis is to contribute to the development of new methods of measurement and analysis of grip-strength. After an in-depth literature review of the most relevant aspects of grip-strength testing, an intelligent dynamometer for home-based testing, the Grip-Ball, is presented. This dynamometer consists of a pressure sensor and a wireless communication system, which are inserted in-side a supple, air-tight ball, in order to measure the pressure inside the ball when it is squeezed. In addition to the Grip-Ball, another innovative dynamometer, the Myogrip, which is well-suited to the measurement of very weak grip strength, was compared to two of the most widely-used dynamometers (Jamar and Martin Vigorimeter). Furthermore the investigation was performed to evaluate the effects of elbow position and of the handle sizes when using these three dynamometers. The development of simple predictive model for the maximal grip strength based solely on hand circumference is presented in a third study, with this simple model suitable for routine use. The last three chapters are devoted to the presentation of advanced methods of signal processing obtained from sustained grip-strength contractions: Hilbert-Huang transform, fractal analysis, and recurrence analysis. These methods are able to characterise the effects of fatigue, tremor, disease or age during these sustained contractions
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Chen, Xuewei Sue. "The effect of elbow position and grip span on isometric grip strength and force distribution of fingers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ31408.pdf.
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Canyock, John David. "The effect of three positions of shoulder flexion on grip strength." FIU Digital Commons, 1997. http://digitalcommons.fiu.edu/etd/2032.
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This study investigated the effect of shoulder position on grip strength in 30 female students from Florida International University. A Jamar dynamometer was used to measure the grip strength in three testing positions (0,90 and 135 degrees of shoulder flexion with full elbow extension). The highest mean grip strength measurement was found at 135 degrees of shoulder flexion, followed by 0 degrees and then 90 degrees. An ANOVA indicated that there was a significant difference between at least two of the three positions. A Fisher's LSD post hoc test indicated that mean grip strength at 135 degrees of flexion was significantly higher than at 0 and 90 degrees of flexion.
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Dodds, Richard. "A cross-cohort investigation of grip strength across the life course." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/396927/.
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Introduction: Grip strength across the life course is associated with disability, morbidity and mortality, and forms a key component of the sarcopenia and frailty phenotypes in older people. However it is unclear how individual measurements of grip strength should be interpreted. My objectives were to produce centile values for grip strength across the life course in Great Britain (GB), and then to compare with those in international settings. Methods: I combined data from 12 general population studies in GB to produce centile curves using the Box-Cox Cole and Green distribution. I estimated the prevalence of weak grip, defined as at least 2.5 SDs below the gender-specific peak mean. I then did a systematic literature search and expressed the resulting international normative data as Z-scores relative to my British centiles. I used metaregression to pool these by world region. Results: I combined 60,803 grip strength observations from GB at ages 4 to 90. I saw an increase to a peak median in early adulthood of 51kg in males and 31kg in females, maintenance to midlife and then decline. The prevalence of weak grip increased with age, reaching 23% in males and 27% in females by age 80. My systematic literature search returned 60 papers containing 730 international normative data items. Those from developed regions were similar to my GB centiles, pooled Z-score 0.12 (95% CI: 0.07, 0.17), whereas those from developing regions were clearly lower, pooled Z-score -0.86 (95% CI: -0.95, -0.77). Conclusion: My GB centiles are the first to cover the entire life course. Published normative data showed a similar pattern, but with clear differences in magnitude between developing and developed regions. The findings have the potential to inform the clinical assessment of grip strength, recognised as an important part of the identification of people with sarcopenia and frailty.
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Born, Megan L. "Relationship of Grip Strength and Range of Motion in Baseball Players." Marietta College Honors Theses / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=marhonors1335981033.
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Elgabroni, Ali A. (Ali Ali) Carleton University Dissertation Engineering Civil. "Structural behaviour of concrete beams reinforced with polymer grids and high strength steel." Ottawa, 1989.
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Kautz, Linda Louise. "Evaluation of the hand grip dynamometer as a tool for nutritional assessment." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184542.
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The purpose of this study was to explore utility of handgrip strength measured by the hand-grip dynamometer for assessment of nutritional status in protein-calorie malnutrition. The first study included six subjects (all right-handed), who had grip strength measured daily for five days, then weekly for three weeks. Intra-individual variability was approximately 10%. No learning or training effect was observed. Change in leg position from feet on the floor to elevation of feet made no significant difference in grip-strength measurement. In Phase Two, 43 healthy adult subjects (three left-handed) prior to elective surgery, height was significantly related to handgrip strength (r = 0.82, p < 0.001). Males were stronger than females. After surgery, the non-dominant hand lost significant strength (2.68 kilograms) and recovered more quickly than the dominant hand. Multiple regression analyses provided predictive equations for pre-surgery left hand-grip strength using age, sex, and height (R² = 0.77); from age, sex, hand measured, and grip strength two days after surgery or three days after surgery (R² = 0.89 for each). Ten sequential grip-strength measurements analyzed by repeated measures analysis of variance with orthogonal comparisons showed a difference in measurements between hands as well as before and after surgery. The slope of the measurement line was more linear before and three days after surgery, but more quadratic in shape two days after surgery. The effects seen by type of surgery were inversion of the slope of right hand sequential measurements two days after knee surgery and before-surgery drop and increase from trial five to trial seven in left hand sequential measurements of knee and vaginal hysterectomy subjects. In a six-month-long case study, grip-strength measurements were followed in a seriously-ill 68-year-old patient hospitalized for surgical repair of hiatal hernia and mucous fistula who underwent several periods of nutritional depletion. Grip strength varied throughout the period (although not differently from healthy subjects), but did not directly parallel changes in serum albumin or prealbumin. The conclusion was that hand strength measured by the handgrip dynamometer did not change enough with fasting and surgery from normal day-to-day variability to be useful for nutritional assessment.
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Fagergren, Anders. "A multidisciplinary system identification of the human precision grip /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-632-4.
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Westerberg, Martin. "MUSKULÄR STYRKA VID MULTIPLA REPETITIONER: : SKILLNADER VID STYRKETEST I BÄNKPRESS OCH LIGGANDE BÄNKRODD MED SKIVSTÄNGER AV OLIKA DIAMETEROMFÅNG." Thesis, Halmstad University, School of Business and Engineering (SET), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-5162.
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Introduction: A complex interaction between muscles, tendons, bones, joints and nerves are required for optimal function of the human hand. It is known that an individual’s grip strength is vital for performance of physical demanding tasks such as strength training with free weights. Strength training including a thicker grip around the bar may enhance the strength of the grip in the athlete without other special routines for grip strength development. The purpose of this investigation was to examine the difference in performance in multiple repetitions in two strength training exercises using two different sizes on the bar, to look for correlations between grip strength of the subjects hand and the amount of repetitions executed with two different size of the bar and finally the correlation of hand size and the amount of repetitions executed with two different size of the bar.
Method: 15 strength training men (23,9 ± 4,1 years), underwent measurements of hand size, maximum grip strength, 1 repetition maximum (1RM), a 80 % of 1RM weight strength test with two different bar sizes.
Results: The results from the present investigation indicates a 21,1 % reduction of 80 % of 1 RM weight performance in repetitions executed in the bench press with the thicker diameter of the bar and a 66,2 % reduction in repetitions executed with a 80 % of 1 RM weight in the lying bench row with the thicker diameter of the bar. The size of the hand or the maximum grip strength does not influences the performance in the 80 % of 1 RM strength test.
Conclusion: With support of the results from this present investigation the size of the bar diameter significant influences the performance in maximum repetitions executed in a set in strength training with free weights, in a rowing exercise the repetitions executed reduced with 66,2 % and in the bench press the reduction of executed repetitions were 21,1 % with the thicker diameter of the bar. The size of the hand do not influences the performance of maximal executed repetitions with the thicker bar diameter. Maximal grip strength has no influence of the performance according to the findings of this investigation.
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Kotrappa, Neel. "The Efficacy of Long-Term Kinesio Tape on Grip Strength in a Healthy Population." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/cmc_theses/976.
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Kinesio® Tape was invented in 1973, and since has been used in various clinical and therapy settings to prevent and heal a multitude of physical conditions. Kinesio® Tape is a 100% cotton-based elastic tape that when applied to the skin pulls the skin upwards and creates more space by lifting the fascia and soft tissue, thus increasing blood flow and decreasing edema. The tape was also purported to facilitate the strengthening of weakened muscles through neuromuscular facilitation. The objective behind this study was to determine the long-term effects of applied forearm Kinesio® Tape on maximal grip strength when paired with an exercise program. The study took place at the CMS Athletic Training Center, and was designed to be a matched-pairs, single group, repeated measures experiment. Thirty- two healthy members of the Claremont College community voluntarily participated in this study. There was 16 male and 16 female participants (average age: 21.46 ± 1.76 years; average height 174.92 ± 9.40 cm; average body weight 69.17 ± 9.20 kg). The maximal grip strength of both the dominant and non-dominant hands was measured using a JAMAR Hydraulic Hand Dynamometer. Each of the 32 subjects also participated in an exercise program for two weeks and provided a grip strength measurement at the end of each week. Maximal grip strength values were assessed using a standard paired-samples t-test. Results revealed a significant difference in grip strength in the dominant arm (exercise with Kinesio® Tape) compared to the non-dominant arm (exercise only). When combined with a relatively low to medium level exercise program, Kinesio® Tape significantly increased grip strength when compared to an exercise program alone in a healthy population.
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Speed, Catherine A. "Grip strength, forearm muscle fatigue and the response to handgrip exercise in rheumatoid arthritis." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4871/.
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Weakness and subjective fatigue are common features of rheumatoid arthritis (RA). However, whether there is a true increase in the fatigability of rheumatoid skeletal muscle, in which fibre atrophy has been frequently reported, is unclear. Such factors may influence the ability to respond to exercise programmes. In this work, a reliable and sensitive technique for the objective measurement of forearm muscle fatigue during sustained grip was developed, using power spectral analysis of the surface myoelectric signal (SMES).The inter-relationships between grip force (hand function) and the activity and severity of the rheumatoid disease process with muscle fatigue (defined as the decline in the median frequency of the SMES with work, (MDFG)) and the initial median frequency of the SMES (IMF) were examined. It has been previously suggested that the IMF of the SMES may reflect the fibre type of the underlying muscle. The response to a 12-week progressive right hand grip strengthening programme in healthy females and those with RA was also evaluated. Potential predictors of outcome and the mechanisms of strength gain were examined. Forearm muscle fatigue in RA was not significantly greater than in healthy controls. However, higher levels of fatigue were associated with greater systemic disease activity and greater disease severity. The IMF of the SMES was shown to be stable over a wide range of grip forces for a given individual. It was significantly elevated in rheumatoid subjects, and showed a direct association with greater disease severity. Handgrip exercise was highly effective in improving hand function in females with RA. Strength gains were also demonstrated in healthy controls. Subjects with more severe disease and greater IMF of the SMES showed the greatest improvement in hand function. Greater systemic and local disease activity during the 12-week programme were limiting factors to improvement in grip. Local (right hand) disease activity remained stable or improved in the RA group overall, in spite of a trend towards deteriorating systemic and left handed disease activity. The two main potential mechanisms of strength gain (neural adaptation and gains in muscle mass) were assessed in both rheumatoid and healthy groups. The former was assessed by evaluation of the neuromuscular efficiency, derived from the relationship of the root mean square of the SMES at a given grip force. Gains in muscle mass were also assessed using this technique and by volumetric analysis of forearm musculature using magnetic resonance imaging. Although significant gains in muscle mass were demonstrated in the control group, no such gains were seen in the rheumatoid subjects. This indicates that neural adaptation was an effective method of strength gain in the rheumatoid group.
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Roberts, Helen C. "The epidemiology of grip strength of older people in a range of healthcare settings." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/365839/.
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Studies assessing the grip strength of older people have typically recruited community dwelling participants, or those in acute hospital settings. There are few studies of grip strength of older people in rehabilitation or long term care. The aim of this thesis was therefore to investigate the epidemiology of grip strength in these healthcare settings. The specific objectives were to study in each setting a) the feasibility and acceptability of grip measurement; b) the grip strength values recorded in comparison with published reference ranges; c) the clinical correlates of grip strength; and d) the association of grip strength with discharge outcomes for the rehabilitation inpatients. Participants were recruited prospectively between 2007 and 2010 from four healthcare settings within the same geographical area. Data on age, anthropometry, current comorbidities and medication, physical, cognitive and nutritional status, and subsequent - discharge were recorded, and grip strength was measured. The feasibility of grip strength measurement was evaluated and its acceptability was assessed by questionnaire and by semistructured interviews with a purposive sample of participants from each setting. 305 participants were recruited. Almost all could complete the grip strength assessment and would repeat the test. Qualitative data confirmed the high level of acceptability of grip strength measurement. There were significant differences in grip strength of both men and women between settings, and the grip strength of the in-patients and the nursing home residents was far below published reference values. Age, gender, body size and Barthel Score were the characteristics most consistently associated with grip strength in these settings. Among the 101 rehabilitation in-patients higher grip strength was associated with a reduced length of stay but this was only statistically significant among the men. This thesis has demonstrated that grip strength measurement of older people in these healthcare settings is both feasible and acceptable, and has described its values as well as its clinical correlates. It has shown the need for reference ranges specific to each healthcare setting since grip strength appears to be associated with length of stay even amongst those with low grip strength.
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Stout, Molly L. "Discrimination between sincere and deceptive isometric grip response using Segmental Curve Analysis." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09122009-040415/.
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Lau, Wai-shing Vincent, and 劉偉誠. "Comparison of power grip and lateral pinch strengths between the dominant and non-dominant hands for normal Chinese male subjects ofdifferent occupational demand." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31970138.
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Wuori, Jennifer L. "The effects of bracing on grip strength and pain level in individuals with lateral epicondylitis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ28692.pdf.
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Edwall, Louise. "Evaluating the correlation between grip strength, forearm circumference, motor dexterity and handedness in university students." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39860.
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Background: Handedness has been associated with different abilities, diseases and personality traits and its effect on language, motor dexterity and handedness are a well-studied matter. Measuring grip strength, forearm circumference and motor dexterity is a common way to get a better understanding the influence of handedness. Lately, studies have shown that there is a difference between right and left-handed in these above stated variables. Aim: The aim of this study was to investigate differences between grip strength and motor dexterity for dominant and non-dominant hand in both left and right-handed. A second aim was to investigate the association between grip strength and motor dexterity or forearm circumference. A third aim was to study the impact heredity have on handedness. Method: The study was designed as an experimental cross-sectional study, including 29 healthy students, age 18-30. Information about age, hand dominance, current health status, former elite carrier and heredity of handedness was collected. Forearm circumference were measured in cm at the largest part of the forearm. The Purdue pegboard test measured motor dexterity by adding pegs, collars and washers to the board on time, giving a total score. Takei Grip-D were used for grip strength (kg) measurement. Mann-Whitney U test, chi-square test and Spearman's correlation (rs) were used for analysis presented as median (min-max). Results: There was no significant difference between right (1.6kg; -4.1-8.0) and left-handed (0.6kg; - 3.4-7.6) regarding grip strength (p=0.43). Although, there was a large to nearly perfect correlation between forearm circumference and grip strength in both right (dominant rs=0.59; non-dominant rs=0.73) and left-handed (dominant rs=0.83; non-dominant rs=0.90). Also, a moderate correlation between motor dexterity and difference in grip strength was found for both right (rs=0.43) and left-handed (rs=-0.42). The studied group was not affected by their relative’s handedness to determine their own handedness (p=0.56). Conclusion: Forearm circumference and grip strength have a large association for both right and lefthanded. The correlation between motor dexterity and difference in grip strength were contrariwise comparing right and left-handed, indicating that handedness should be studied separate.
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Dyberg, Malin, and Ahlbäck Elvira Troillet. "P.E.G.A.S : Powered Exoskeleton Grip Amplifying System." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295802.
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In this bachelor’s thesis, the development and construction of a soft exoskeleton for a human hand is described.The purpose of the project includes evaluating what type of exoskeleton that is most suitable for aiding the user inactivities of daily living and how this exoskeleton can be constructed in order to increase grip strength in the human hand. In addition, the prototype should be portable and not inflict any harm on the user. The necessary theoretical research is thoroughly conducted followed by the construction of the final prototype. The purpose of the project is achieved, resulting in a flexible, portable and safe exoskeleton which with satisfaction can aid the user in its activities of daily living. However, this prototype is limited to exclusively include the thumb and index finger, and in further work the prototype can be developed to include all five fingers of the human hand.I detta kandidatexamensarbete behandlas utvecklingen och konstruktionen av ett mjukt exoskelett för den mänskliga handen. Syftet med projektet är att undersöka vilken typ av exoskelett som passar bäst för att hjälpa användaren med aktiviteter i det dagliga livet, samt hur detta exoskelett kan konstrueras för att förstärka greppet i handen. Prototypen ska även vara bärbar och inte skada användaren. Den nödvändiga teorin presenteras, följt av konstruktionen av den slutgiltiga prototypen. Syftet med projektet uppfylls och resulterar i ett flexibelt, portabelt och säkert exoskelett som kan hjälpa användaren med aktiviteter i det dagligalivet. Dock är denna prototyp begränsad till att endast inkludera styrning av tummen och pekfingret, och prototypenkan således i framtida arbeten utvecklas till att inkludera samtliga fem fingrar på den mänskliga handen.
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Rini, Katlyn R. Ms. "Comparing Strength and Flexibility Among Children with Down Syndrome and Typically Developing Individuals." Ohio Dominican University Honors Theses / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=oduhonors1430843621.
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Vidrich, Filho Hélio [UNESP]. "Avaliação da força de preensão palmar plena e pulpo-lateral: relação com a antropometria da mão e posições de trabalho." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/89744.
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vidrichfilho_h_me_bauru.pdf: 1113584 bytes, checksum: 384c866bf4fdb913a86ecebde7460955 (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O presente trabalho avaliou 60 indivíduos, sem patologias, 30 homens e 30 mulheres, entre 17 e 70 anos, totalizando 120 membros superiores. Elaborou-se um protocolo, a fim de se avaliar a força de preensão palmar plena, medida com o Dinamômetro JAMAR®, e a força de preensão pulpo-lateral, medida com o Medidor de Pinça B&L, correlacionando-as com o gênero, idade, posições dos membros superiores e medidas antropométricas da mão. Constatou-se que ambas as forças de preensão foram maiores no gênero masculino do que no gênero feminino, assim como, as medidas antropométricas das mãos. Levando-se em conta a correlação das forças com as posições dos membros superiores, nas quais foram avaliadas as forças não se encontrou correlação estatisticamente significativa em nenhuma das posições, porém, observou-se correlação com algumas medidas antropométricas das mãos, como largura da mão, comprimento do polegar e do dedo médio, assim como da mão. Portanto as medidas antropométricas devem ser consideradas em uma avaliação clínica e/ou ergonômica.
The present research evaluated 60 people without any current pathologies, 30 male and 30 female whose age range went from 17 to 70 years old making up a total of 120 upper limbs. A protocol was created aiming to evaluate full grip strength, measured with JAMAR® Dynamometer, and lateral pulp grasp measured with B&L Pinch, relating them to gender, age, upper limbs positions and anthropometrical hand measurements. It has been noticed that both grip strengths were larger with males rather than females as well as the anthropometrical hand measurements. Taking into consideration the relation of the forces with the upper limbs positions in which the forces were evaluated, no meaningful statistical relation was found in any of the positions, however, a relation with some anthropometrical hand measurement were noticed such as hand width, thumb and middle finger length, as well as the hand s. Therefore, the anthropometrical hand measurements shall be regarded towards a clinical and/or ergonomic evaluation.
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Vidrich, Filho Hélio. "Avaliação da força de preensão palmar plena e pulpo-lateral : relação com a antropometria da mão e posições de trabalho /." Bauru : [s.n.], 2005. http://hdl.handle.net/11449/89744.
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Orientador : José Carlos Plácido da SilvaBanca: José Antonio Galbiatti
Banca: Luis Carlos Paschoarelli
Resumo: O presente trabalho avaliou 60 indivíduos, sem patologias, 30 homens e 30 mulheres, entre 17 e 70 anos, totalizando 120 membros superiores. Elaborou-se um protocolo, a fim de se avaliar a força de preensão palmar plena, medida com o Dinamômetro JAMAR®, e a força de preensão pulpo-lateral, medida com o Medidor de Pinça B&L, correlacionando-as com o gênero, idade, posições dos membros superiores e medidas antropométricas da mão. Constatou-se que ambas as forças de preensão foram maiores no gênero masculino do que no gênero feminino, assim como, as medidas antropométricas das mãos. Levando-se em conta a correlação das forças com as posições dos membros superiores, nas quais foram avaliadas as forças não se encontrou correlação estatisticamente significativa em nenhuma das posições, porém, observou-se correlação com algumas medidas antropométricas das mãos, como largura da mão, comprimento do polegar e do dedo médio, assim como da mão. Portanto as medidas antropométricas devem ser consideradas em uma avaliação clínica e/ou ergonômica.
Abstract: The present research evaluated 60 people without any current pathologies, 30 male and 30 female whose age range went from 17 to 70 years old making up a total of 120 upper limbs. A protocol was created aiming to evaluate full grip strength, measured with JAMAR® Dynamometer, and lateral pulp grasp measured with B&L Pinch, relating them to gender, age, upper limbs positions and anthropometrical hand measurements. It has been noticed that both grip strengths were larger with males rather than females as well as the anthropometrical hand measurements. Taking into consideration the relation of the forces with the upper limbs positions in which the forces were evaluated, no meaningful statistical relation was found in any of the positions, however, a relation with some anthropometrical hand measurement were noticed such as hand width, thumb and middle finger length, as well as the hands. Therefore, the anthropometrical hand measurements shall be regarded towards a clinical and/or ergonomic evaluation.
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Omae, Kenji. "Gait speed and overactive bladder in the healthy community-dwelling super elderly-The Sukagawa Study." Kyoto University, 2020. http://hdl.handle.net/2433/245838.
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Werle, Stephan. "Age- and gender-specific normative data of grip and pinch strength in a healthy adult swiss population /." [S.l.] : [s.n.], 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000281113.
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Bromley, John. "The design and application of microprocessor based systems for clinical measurement of joint stiffness and grip strength." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/6546/.
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The overall aim of the project was to further the research into the objective measurement of the symptoms of arthritic disease. There were three major parts to this study. The first part was to design a measurement system capable of making large scale, objective measurements of the stiffness of the human metacarpophalangeal joint. The second part was to design a new device to measure the grip strength of the human hand objectively. The last part was to use these two measurement systems to conduct research into the clinical manifestations of arthritic disease and study the effects of some therapeutic agents. A new, microcomputer controlled arthrograph system was developed to measure the stiffness of the metacarpophalangeal joint of the index finger. The system proved to be reliable, easy to use and sufficiently accurate to quantify changes in joint stiffness. A new design of grip machine was produced which enabled the forces developed during a power grip to be analysed. Measurement was made of the force contributions of individual digits and the maximum total gripping force. The machine was portable and extremely easy to use. A study of the circadian variation of joint stiffness and grip strength, over a full twenty four hour period, was carried out. Measurements were made every two hour in both healthy and arthritic subjects. A circadian variation of stiffness was observed in the joints of arthritic subjects. Joint stiffness was elevated in the early morning and for some subjects the degree of change was profound. No significant circadian variation was observed in the joint stiffness of healthy subjects. A circadian variation of grip strength was observed in arthritic subjects. Grip strength reached a minimum value between 2.00 and 4.00 a.m. in the majority of subjects. No consistent relationship was found between changes in joint stiffness and changes in grip strength. The effect of several forms of physiotherapy on the joint stiffness of arthritic subjects was studied in both the short and long term. The subjects were measured before, and then immediately after, treatment each time they visited a physiotherapy hand clinic. Only the results of those patients who attended the clinic for a minimum of five weeks were used in any subsequent analysis. Four different treatments were studied: hot wax and ultrasound, hot wax alone, ultrasound alone and exercise. The combination of hot wax baths and ultrasonic therapy effected temporary reductions in all joint stiffness parameters. The reductions in energy dissipation and torque range were highly significant ( p < 0.05 and p < 0.001 respectively ). No significant reductions were found for hot wax, ultrasound alone or exercise. In the long term, no significant change in joint stiffness was found for any of the treatments considered.
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Ruot, Charles W. "A study of the relationship between golf performance and depth perception, arm/hand steadiness, grip strength and dynamic balance /." View online, 1987. http://repository.eiu.edu/theses/docs/32211998881753.pdf.
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Marcon, Liliane de Faria. "Relação entre força muscular respiratória e força de preensão palmar em idosos institucionalizados e da comunidade." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/100/100141/tde-29102018-152358/.
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INTRODUÇÃO: Os efeitos do envelhecimento no sistema respiratório iniciam-se aproximadamente aos 25 anos de idade e leva a diminuição da função máxima deste sistema. Esta diminuição de função é perceptível sobre os volumes e capacidades pulmonar, sobre a força dos músculos respiratórios e do fluxo aéreo, predispondo o idoso a complicações que podem resultar em internações e até em morte. A massa e a força muscular reduzida já é bem estudada nesta população, porém com poucos estudos investigando a relação com a função respiratória. OBJETIVO: Avaliar a relação entre força muscular respiratória e força de preensão palmar em idosos institucionalizados e da comunidade. MÉTODO: Caracteriza-se por um estudo transversal com 64 voluntários, sendo 33 institucionalizado (GI) e 31 da comunidade (GC). Foram avaliados a pressão inspiratória máxima (PImax), pressão expiratória máxima (PEmax), pico de fluxo expiratório (PF), força de preensão palmar dominante (FPP D) e não dominante (FPP ND), dados antropométricos e nível de atividade física (IPAQ curto). Os dados foram submetidos a análise estatística através do teste t student para amostras independentes para comparação entre os grupos, análise de covariância (ANCOVA) controlada pela covariável idade para as variáveis respiratórias e para a força de preensão palmar, teste de Pearson para avaliação da correlação das variáveis e a análise de regressão linear para identificação da influência das variáveis respiratórias sobre a FPP, além da correção de Bonferroni para excluir o erro do tipo I. RESULTADOS: Os valores encontrados nos testes respiratórios e de força entre os grupos, diferiram estatisticamente mesmo controlado pela covariável idade, sendo que o GI apresentou valores inferiores ao GC. No GI não encontramos correlação entre as variáveis respiratórias e as de FPP, porém o preditor respiratório mais fortemente associado à FPP D foi a PEmax (p=0,04). No GC verificou-se correlação entre PImax e FPP D (r=0,539), PEmax e FPP D / ND (r=0,62 / 0,6), PF e FPP D / ND (r=0,64 / 0,43) e o preditor respiratório mais fortemente associado à FPP D foi PF (p=0,009) e PEmax (p=0,028) e para FPP ND foi a PEmax (p=0,021). Na análise conjunta dos grupos verificou-se associação entre PImax e FPP D / ND (r=0,40 / 0,41), PEmax e FPP D / ND (r=0,57 / 0,54), PF e FPP D / ND (r=0,57 / 0,47) e o preditor respiratório mais fortemente associado à FPP D foi PF (p=0,01) e PEmax (p=0,03) e para FPP ND foi a PEmax (p=0,008) e PF (p=0,041). CONCLUSÃO: O GI apresenta maior fraqueza da musculatura respiratória e estas variáveis não se relacionam bem com a FPP. Em idosos da comunidade o PF e a PEmax parecem ser um bom preditor para a FPPINTRODUCTION: The effects of aging on the respiratory system begin at approximately 25 years of age and lead to a decrease in the maximum function of this system. This diminished function is noticeable on lung volumes and capacities, on respiratory muscle strength and airflow, predisposing the elderly to complications that may result in hospitalization and even death. The mass and reduced muscle strength is already well studied in this population, but with few studies investigating the relation with the respiratory function. OBJECTIVE: To evaluate the relationship between respiratory muscle strength and palmar grip strength in institutionalized and community aged individuals. METHOD: It is characterized by a cross-sectional study with 64 volunteers, being institutionalized 33 (GI) and 31 from the community (GC). The maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), peak expiratory flow (PF), dominant palmar grip strength (FPP D) and non-dominant (FPP ND), anthropometric data and level of physical activity (short IPAQ). The data were submitted to statistical analysis through t Student test for independent samples for comparison between groups, covariance analysis (ANCOVA) controlled by covariate age for respiratory variables and for palmar grip strength, Pearson test for correlation evaluation of the variables and the linear regression analysis to identify the influence of the respiratory variables on the FPP, besides the Bonferroni correction to exclude the type I error. RESULTS: The values found in the respiratory and strength tests between the groups, differed statistically even by the covariable age, and the GI presented values lower than the GC. In GI, we found no correlation between respiratory and FPP variables, but the respiratory predictor most strongly associated with FPP D was the PEmax (p = 0.04). In the CG, correlation was found between PImax and FPP D (r = 0.539), PEmax and FPP D / ND (r = 0.62 / 0.6), PF and FPP D / ND (r = 0.64 / 0, 43) and the respiratory predictor most strongly associated with FPP D was PF (p = 0.009) and PEmax (p = 0.028) and for FPP ND was PEmax (p = 0.021). In the joint analysis of the groups, an association between PImax and FPP D / ND (r = 0.40 / 0,41), PEmax and FPP D / ND (r = 0.57 / 0.54), FP and FPP D (P = 0.01) and PEmax (p = 0.03) and for FPP ND it was the PEmax (p = 0.07) and ND (r = 0.57 / 0.47) and the respiratory predictor most strongly associated with FPP D = 0.008) and PF (p = 0.041). CONCLUSION: GI shows greater respiratory muscle weakness and these variables do not correlate well with PPF. In the elderly in the community, PF and PEmax appear to be a good predictor of PPF
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Olsson, Malin. "Core endurance and correlation to spinal rotation mobility and hand grip strength in female horseback riders and soccer players." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42363.
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Bakgrund: Bålstabilitet är nödvändigt för att hålla balansen och möjliggör kraftöverföring genom kroppen. Detta gör bålstabilitet viktigt i vardagliga sysslor, sportutföranden och för att minska risken för skada. En bättre förståelse över bålstabiliteten i olika sporter kan utveckla träningsprogram, inte bara för att förbättra bålstabiliteten, utan även för att förbättra den generella prestationen. Syfte: Syftet med denna studie var att undersöka skillnader i båluthållighet mellan unga kvinnliga ryttare och fotbollsspelare, och associationen med handgrepp styrka och rotationsrörlighet i ryggen. Metod: Båluthålligheten undersöktes med McGill’s båluthållighets test, mellan kvinnliga ryttare (n = 10) och fotbollsspelare (n = 10), ålder 16 – 20. Handgreppsstyrkan undersöktes med en handdynamometer och användes som en indikation av generell styrka. Ryggrotations testet undersöktes men en Myrinmätare. Shapiro-Wilks användes för att bekräfta normalfördelning av data. Oberoende t-test användes för att jämföra båluthållighet (sek.) mellan ryttarna och fotbollsspelarna. Signifikansnivån fastställdes till <0,05. Ett styrkeförhållande räknades ut (kg/kg kroppsvikt) och Pearsons korrelationskoefficient användes sedan för att undersöka associationen med båluthållighet (sek.). Pearsons korrelationskoefficient användes också för att undersöka associationen mellan medelvärdet av ryggrotation (°) och båluthållighet (sek.). Hög korrelation fastställdes när r> (0,7), måttlig korrelation när r = (0,3 – 0,7) och låg korrelation när r <0,3. Resultat: Resultaten visade att ryttarna hade bättre uthållighet i bålextensionen, jämfört med fotbollsspelarna (p = 0,006). Lateralflexionen av bålen visade ingen skillnad mellan ryttarna och fotbollsspelarna (p = 0,924; p = 0,423). Handgrepp styrkan visade måttlig korrelation med bålextensionen (r = 0,631; r² = 0,398) och båda sidor av lateralflexionen av bålen (r = 0,411; r² = 0,169; r = 0,615; r² = 0,378). Rotationsrörligheten i ryggen visade låg korrelation med samtliga båluthållighets tester (r >0,3). Slutsats: Resultaten indikerar få skillnader mellan ryttare och fotbollsspelare, vilket inte är tillräckligt för att fastställa någon slutsats. Korrelationen mellan handgreppsstyrkan och båluthållighet indikerar att bättre bålstabilitet associerar med mer generell styrka.Background: Core stability is necessary to keep balance and enables force to be transmitted through the body. This makes core stability important in everyday chores, sport performance and to reduce risk of injuries. A better understanding of the core stability in different sports can develop athletes training programs, not only to improve the core stability itself, but also to improve overall performance. Aim: The aim of this study was to examine the differences in core endurance between young female horseback riders and soccer players, and the core endurance association with hand grip strength and spinal rotation mobility. Methods: The McGill’s core endurance test was used to examine the core endurance between female horseback riders (n = 10) and soccer players (n = 10), age 16-20. The hand grip strength was examined with a hand grip dynamometer and was used to get an indication of overall body strength. The spinal rotation mobility was examined with a Myrin goniometer. Shapiro-Wilks was used to confirm the normality of the data. Independent sample t-test was used to compare core endurance time (sec.) between the horseback riders and the soccer players. The significant level was set at < 0.05. A strength ratio was calculated (kg/kg body weight), and the Pearson’s correlation coefficient was used for examining the association to core endurance (sec.). Pearson’s correlation coefficient was also used to examine the association between the spinal rotation mobility (°) and core endurance (sec.). High correlations were set at r > (0.7), moderate when r = (0.3- 0.7) and low when r < (0.3). Results: The result showed that horseback riders had better endurance in the trunk extensor test than the soccer players (p = 0.006). Hand grip strength showed moderate correlation with the endurance time of the trunk extensor test (r = 0.631, r² = 0.398), and with the lateral flexor tests (r = 0.411, r² = 0.169; r = 0.615, r² = 0.378). Low correlation was shown with the trunk flexor test (r = 0.197, r² = 0.039). The spinal rotation mobility test showed low correlation with all the core endurance tests (r >0.3). Conclusion: The results indicates few differences between the horseback riders and the soccer players, which is not enough to draw a conclusion. The correlation between hand grip strength and the core endurance tests indicates that a better core stability might be associated to an increased overall body strength.
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SUZUKI, KISHIKO, JUNKO HOSHINO, and YOKO HORI. "PHYSICAL AND PSYCHOLOGICAL HEALTH PROBLEMS AMONG JAPANESE FAMILY CAREGIVERS." Nagoya University School of Medicine, 2011. http://hdl.handle.net/2237/15353.
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Berberi, Ilias. "Performance Trade-Offs in Wild White-Footed Mice (Peromyscus Leucopus)." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38382.
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Various aspects of performance (e.g., sprint speed, grip strength) are thought to be important determinants of the success of animals in natural activities such as foraging, mating, and escaping from predators. However, it is generally known that morphological properties enhancing one type of performance (e.g., speed) can lead to a reduction in another (e.g., strength). Such performance trade-offs have been quantified at the inter-specific level, but evidence at the inter-individual level remains equivocal. To test for the presence of a performance trade-off, I initiated a study on wild white-footed mice (Peromyscus leucopus). In summer 2016, I captured a total of 186 individuals, 87 of which were repeatedly phenotyped for grip strength and sprint speed. A significant positive relationship was found between body mass and grip strength (but not for sprint speed). Individual differences in performance were repeatable through time for both grip strength and sprint speed. Using a bivariate mixed model, I detected a significant negative correlation between grip strength and sprint speed at the among-individual level. By contrast, the within-individual correlation between grip strength and sprint speed tended to be positive, suggesting that some unquantified aspects of the mouse phenotype (e.g., body condition, age) may have a positive effect on both performance traits. Given the relatively low repeatability of grip strength and sprint speed, a failure to properly partition the correlation at the among- and within-individual level generates a counter-intuitive, positive correlation. This study is one the first to detect a performance trade-off at the among-individual level in a wild animal population.
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Frennessen, Sebastian, and Jens Ericsson. "Sambandet mellan skotthastighet, handgreppstyrka samt skridskohastighet hos manliga elithockeyspelare." Thesis, Uppsala universitet, Åsenlöf: Fysioterapi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402352.
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Bakgrund: Sportfysioterapeuter hjälper atleter att förbättra sport-specifika förmågor. Inom ishockey är slagskottet den skotteknik som producerar den snabbaste puckhastigheten. Handgreppsstyrka har visat sig vara viktig för en hockeyspelares sport-specifika förmågor och klubbrörelser. Skridskohastighet är en viktig variabel sett till hockeyspelares övergripande prestationsnivå. Syfte: Att undersöka den genomsnittliga maximala skotthastigheten, den genomsnittliga maximala handgreppsstyrkan och den genomsnittliga maximala skridskohastigheten hos en grupp manliga svenska elithockeyspelare och undersöka sambandet mellan den maximala skotthastigheten och den maximala handgreppsstyrkan samt skridskohastigheten. Metod: Ett lag på tjugotre manliga elithockeyspelare tillfrågades varav tjugo deltog i studien. Endast utespelare tillfrågades. Tvärsnittstudie med kvantitativ ansats bestående av enstaka mätningar på en grupp. Skotthastighet, handgreppsstyrka och skridskohastighet mättes en gång per testperson vid tre separata tillfällen. Resultat: Sjutton hockeyspelare slutförde studien. Den genomsnittliga maximala skotthastigheten var 128,167 km/h. Den genomsnittliga maximala handgreppsstyrkan var 60,2 kg. Den genomsnittliga skridskohastigheten var 1,405s mätt på en sträcka av 15 meter. Sambandet mellan skotthastighet och handgreppsstyrka var svagt negativt och ej statistiskt signifikant (r=-0,042; p=0,876). Sambandet mellan skotthastighet och skridskohastighet var svagt negativt och ej statistiskt signifikant (r=-0177; p=0,508). Konklusion: De genomsnittliga maximala värdena på skotthastighet, handgreppsstyrka och skridskohastighet är jämförbara med andra studiers värden. Sambandet mellan skotthastighet och handgreppstyrka samt skridskohastighet var svagt vilket pekar på att dessa faktorer inte är en indikator på skotthastigheten vid ett slagskott. Fler studier behövs för att stödja studiens resultat.Background: Sportsfysiotherapists help athletes improve their sport-specific abilities. In ice-hockey, the slap shot is the shot-technique that produces the greatest puck velocity. Hand grip strength have shown to be important to hockey players sport-specific abilities and stick movements. Skating speed is an important variable for the hockey players overall performance. Aim: To investigate the mean hand grip strength, skating speed and shooting speed on a group swedish male elite ice-hockey players and investigate the correlation between these factors. Methods: A team of twentythree male elite hockey players were asked to participate in the study. Twenty players participated. A cross-sectional study with a quantitative approach consisting of single measures on one group. Puck velocity, handgrip strength and skating speed were measured one time per player on three separate sessions. Results: Seventeen hockey players completed the studie. The mean puck velocity was 128,167 km/h. The mean hand grip strength were 60,2 kg. The mean shooting speed were 1,405s measured on a distance of 15 meters. The correlation between puck velocity and hand grip strength were not statistically significant weak negative (r=-0,042; p=0,876). The correlation between mean puck velocity and shooting speed were not statistically significant weak negative(r=-0,177; p=0,508). Conclusion: The mean maximal values of puck velocity, hand grip strength and shooting speed are comparable with similar values from other studies. The correlation between puck velocity and hand grip strength and shooting speed were weak which indicate that these factors do not affect the puck velocity from a slap shot. Further studies are needed to strengthen this study's result.
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Ramos, Andre F. "Significance of battery energy storage systems in mitigating the challenges in weak grids." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2517.
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Power systems have undergone major transformations in recent years, with the main sources of generation shifting from fossil fuel generators to renewable energy sources (RES). This trend is expected to continue, as almost all government bodies have faced enormous public pressure to address climate crises. Consequently, decarbonizing the energy sector is one of the top priorities for almost all countries in the world. However, with increases in RESs connected to networks, the electric power industry has experienced a number of challenges, including weaker grids, low inertia, system congestion and voltage and frequency instability. This thesis investigates the role of battery energy storage systems in mitigating some of these challenges.
Battery Energy Storage Systems (BESSs) have proved effective in mitigating numerous problems caused by the high penetration of RESs. However, planning BESSs is an extremely important task, not only because of high costs of batteries, but also because misplacing BESSs can have a negative impact on grid reliability. This thesis has shed some light on novel planning solutions for connecting BESSs under challenging conditions, caused by the high penetration of RESs. In this research, the problem of connecting BESS under weak grid conditions has been modelled as a constrained optimization problem, with a goal to minimize voltage deviation and frequency response. The optimization problem was solved using a meta-heuristic approach called binary grey wolf optimization. Further, PowerFactory was used to model the grid and test system responses.
Since BESSs are expensive assets that can be used for multiple applications, including as potential solutions for mitigating weak grid challenges, in practice decisions regarding BESS sizes are heavily influenced by their cost benefit analysis. In this thesis, we also show how wholesale electricity market costs influence the sizing of BESSs.
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Brown, Mitch. ""Train Real Hard, Brother!" Media Self-Assimilation of Masculine Ideals on Male Body Image and Physical Strength." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1398342753.
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Nilsson, Anton, and Johanna Listermar. "Samband mellan låggradig kronisk inflammation, greppstyrka ochmuskelmassa hos 52-åriga kvinnor och män." Thesis, Uppsala universitet, Fysioterapi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-311578.
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Background.Studies have shown that low-grade chronic inflammation affect muscle mass negatively. Theimpact of inflammation in grip strength is not yet investigated. Existing studies are made on a few populations.This study aims to describe how inflammation, grip strength and muscle mass looks in agroup of 52-year-old men and women and to examine the differences between the sexes.Another aim is to investigate the correlations between low-grade chronic inflammation (n =32) and muscle mass (n = 23) and grip strength (n = 30).Method Data from an ongoing study were analyzed with a non-experimental descriptive, comparativeand correlating design. Lean muscle mass was calculated by subtracting the percentage of fatfrom weight. Grip strength was measured by Jamar dynamometer. CRP as inflammationparameter through blood-samples. Results The populations measured levels was consistent with current reference values för healthyindividuals. Tendencies to positive correlation between CRP and muscle mass could be seenfor both men and women. For men there were tendency towards positive correlation betweenCRP levels and grip strength, while tendency to negative correlation for women. Women hadhigher CRP levels compared to men. Men had higher levels of muscle mass and grip strength. Conclusion No conclusions could be drawn regarding the effect of low-grade chronic inflammation effectin fat-free mass and grip strength. The study has highlighted the need for further research inthe field.
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Davidson, Jerre H. "The effect of acupuncture versus ultrasound on pain level, grip strength and disability in individuals with lateral epicondylitis, a pilot study." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39815.pdf.
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Gravitt, Karla Marks Bonita L. "The relationship between grip strength, reaction time, and cerebral white matter integrity in the anterior internal capsule of healthy older adults." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2537.
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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2009.Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Master of Arts in the Department Exercise and Sport Science Exercise Physiology." Discipline: Exercise and Sports Science; Department/School: Exercise and Sport Science.
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Heedman, Linus. "Neurodynamic treatment in combination with manual therapy in patients with persistent lateral elbow pain : A Single Subject Experimental Design study." Thesis, Luleå tekniska universitet, Institutionen för hälsa, lärande och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85937.
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Introduction Lateral elbow pain is a common disorder and affects 1-3 % of the population each year. Beside the typical characterization with pain in restricted dorsal and radial deviation of the wrist and local tenderness of the lateral epicondyle, a neurodynamic dysfunction of the radial nerve can co-exist with the tendon dysfunction. Purpose The aim of the study was to evaluate the effects of individualized neurodynamic treatment in combination with neurodynamic self-treatment in patient with persistent lateral elbow pain with a neurodynamic dysfunction of the radial nerve on grip strength, pain, disability, and function. Method A single subject experimental design with A-B-A design was conducted. Seven participants with lateral elbow pain and a neurodynamic dysfunction of the radial nerve were recruited for the study. Five participants completed the study which consisted of individualized neurodynamic treatment directed to the neurodynamic dysfunction in combination with home exercises which included self-mobilization with sliders and/or tensioners in combination of the strengthening- and stretching exercises. The treatment was evaluated by pain-free and maximal grip strength, the Disabilities of the Arm, Shoulder and Hand (DASH) and Patient-rated Tennis Elbow Evaluation (PRTEE) questionnaires and range of motion of the upper limb neurodynamic test (ULNT) biased n. radialis. Results The result of this SSED shows that neurodynamic treatment with manual mobilization and self-mobilization improves the ROM of the ULNT n. radialis in all five participants. Neurodynamic treatment also improved outcomes of DASH and PRTEE in 3 of the 5 participants. Conclusion Neurodynamic treatment including manual mobilization and self-mobilization in combination with individual strength exercises tends to improve self-rated pain and disability, function and mechanosenstivity of the radial nerve in patients with persistent lateral elbow pain.
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Sagnol, Loba. "Experimental and analytical study of the reinforcement of pavements by glass fibre grids." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAD042.
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Cette thèse traite de l’effet des grilles en fibre de verre, utilisées pour renforcer les structures routières, sur la liaison entre deux couches d’enrobés bitumineux, la durée de vie en fatigue et le module de rigidité des ´éprouvettes cylindriques renforcées, ainsi que sur les déflexions mesurées sur une section de route renforcée in situ. Des essais de cisaillement (LEUTNER) ainsi que de module et de fatigue (ITT) ont été conduit sur des éprouvettes renforcées et non renforcées en utilisant différentes grilles, différentes émulsion ainsi que différentes quantités d’émulsion. Pour ces essais, une surface de test a été construite in-situ, de laquelle les ´éprouvettes ont ´été extraites. Une section de route in-situ a ´également été construite, renforcée avec 3 différentes grilles et avec deux sections de références. Les déflexions de la chaussée ont été déterminées avant et après les travaux. Une modélisation de la structure a été faites basée sur les résultats des mesures de déflexionThis PhD-study evaluates the impact of glass fibre grids, used to reinforced asphalt structures, on the bonding between two asphalt layers, the fatigue life and the stiffness modulus of reinforced cylindrical specimens as well as on the deflections measured on a reinforced in-situ road section. Shear tests (LEUTNER) as well as modulus-tests and fatigue-tests (ITT) were conducted on reinforced and unreinforced specimens, using different grids, different emulsions and different emulsion quantities. For this tests, an outdoor test-surface was constructed, from which the specimens were extracted. A in-situ road test section was also constructed, reinforced with 3 different grids and having two reference sections. The deflections of the road were determined before and after the construction works. A modelisation of the structure, based on the deflection measurements, was made
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Kemper, Courtney Paige. "Association Among Physical Activity, Protein, Intake and Clinical Indicators of Sarcopenia." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1605816952601922.
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Singh, Harvinder Pal. "Wrist partial arthrodesis or other motion preserving surgery for degenerative wrist disease : prospective comparative assessment of grip strength, range of motion, function and disability." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/33156.
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Traumatic osteoarthritis of the wrist is a disabling disease that affects middleaged active adults in the prime of their working life. I set out to assess wrist function and disability in patients with traumatic wrist osteoarthritis before and after surgery. I measured wrist range of motion with flexible electrogoniometer, grip strength with force-time curves using dynamometer, hand function with timed Sollerman hand function test and patient-reported outcome. I first developed these techniques in normal volunteers and then extended them to patients with wrist osteoarthritis before surgery and after four-corner fusion, three-corner fusion, total wrist fusion, and proximal row carpectomy. I used flexible electrogoniometry to generate circumduction curves to measure range, rate and rhythm of circumduction of the wrist. It showed that there was no difference in range of motion parameters in patients with wrist osteoarthritis before surgery and after four-corner fusion and three-corner fusion. Proximal row carpectomy provides better flexion-extension and poorer radio-ulnar deviation than four-corner fusion. Three-corner fusion allows better rate and rhythm of movements in flexion and ulnar deviation compared to four-corner fusion. Grip strength was measured with dynamometer to generate force time curves to measure sustainability of grip. There was no difference between our groups with wrist osteoarthritis before surgery and after wrist fusion, four-corner fusion or three-corner fusion. I developed the Timed Sollerman hand function test by measuring the time taken to complete each of the tasks without summarisation into a 5-point scale. It showed that volunteers completed the tasks quicker with the dominant hand than with the nondominant hand. Women took less time to complete the tasks in the 30-40 years age group than women in the 20-30 years age group and beyond 40 years. The patients with PRC completed the different activities of daily living quicker than the 4CF patients, except for activities requiring wrist torque strength.
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McHarg, Winsome Joy. "A study of the interrelationship between grip strength, muscle mass, metabolic utilisation of fat and surgical outcome in patients undergoing stomach and bowel surgery." Thesis, Queensland University of Technology, 1994. https://eprints.qut.edu.au/37192/1/37192_McHarg_1994.pdf.
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Numerous investigators have demonstrated a relationship between pre and postoperative hyperketonaemia and nitrogen sparing. Grip strength has recently been found to be a sensitive indicator of post-operative complications. The aims of this study were: 1) To determine whether a relationship exists between perioperative ketone status and nitrogen status and post-operative grip strength; 2) to investigate the relationship between perioperative ketone status and other factors including cancer and surgery; 3) to determine which parameters used in this study are associated with increased length of hospital stay; 4) to use the study parameters to assess the perioperative profile of patients. 64 patients undergoing gastrointestinal tract surgery were studied pre-operatively and during the post-operative week. Ketone status was assessed by plasma B hydroxybutyrate. Indicators of protein status included excretion of urea nitrogen and 3-methylhistidine, arm muscle area and thigh muscle thickness changes. Other parameters studied were weight, frame size, height, midarm circumference, triceps skinfold thickness using calipers and ultrasound, thigh fat and muscle using ultrasound, and grip strength. Nutritional intake was monitored. No significant relationship was found between ketone status and indicators of protein status or grip strength. Patients who were hyperketonaemic perioperatively (n = 9) had a significantly lower BMI than patients who were normoketonaemic perioperatively. (n = 18) (t test p = 0. 05) A significantly higher proportion of patients who were hyperketonaemic pre-operatively had triceps skinfold thickness less than the 50th percentile. (Chi Square p < 0.01 n=43) Length of hospital stay was found to correlate with percentile pre-operative grip strength in patients >69 years. (Spearman's rank order, n=15, r=0.56, p < 0.05) Post-operative grip strength (day five) less than 90% of pre-operative was also associated with increased length of stay.(17±7.3 S.D. days n=l0) Length of hospital stay for patients with post-operative grip strength > 90-100% (=23) and > 100% (n=15) of the pre-operative grip strength was 11.4±5.8 S.D. days and 10.0±2.7 S.D. days respectively. (ANOVA p= < 0.05) Thighmuscle was found to waste more than arm muscle post-operatively. (paired t test p=0.05, n=18) In contrast, no significant difference was found between postoperative arm and thigh fat wasting. A significant increase in energy intake was demonstrated between days 5 and 7 post-operatively (t test, p=0.0001) It is concluded that pre-operative grip strength is a useful indicator of length of stay in patients > 69 years. Day 5 post-operative grip strength < 90% of preoperative is associated with increased length of stay. Leg muscle wasting occurs to a greater extent than arm muscle wasting post-operatively.
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Wentz, Marcelo Diederichs. "Análise dos parâmetros da curva de força de preensão manual em judocas de diferentes categorias." Universidade do Estado de Santa Catarina, 2010. http://tede.udesc.br/handle/handle/462.
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The purpose of this study was to evaluate the parameters of the isometric handgrip strength curves in highly trained judo athletes from different categories. 44 judo athletes who were participating of the VII Troféu Brasil, which took place in Porto Alegre, RS and 25 Physical Education students participated of this study. The handgrip strength was evaluated using a dynamometer built at LABIN, located on CEFID/UDESC. The evaluation of the judo athletes was performed during the championship weighing, in Porto Alegre, and the evaluation of the students was performed at LABIN. The handgrip strength was evaluated for 10 seconds, with one attempt on the dominant hand and one attempt on the non dominant hand, on the seated position adapted from the ASHT. The parameters evaluated were Maximum force (FMAX), Time to maximum force (T100), impulse to maximum force (imp100), rate of decrease (IQ) and impulse (imparea1). For the analysis regarding the athletes, the individuals were divided into three groups, according to their body mass (MC), into two groups according to their results and into two groups according to T100. To eliminate the influence of MC over the strength values recorded on both tests and allow the comparison between individuals of different categories and consequently of different body sizes, the allometric scaling was performed on the FMAX. After the statistical analysis was conducted, differences between the lighter and heavier categories in the handgrip strength curve parameters were found. In this case, the correction of the strength values by the corrected MC eliminated the influence of the MC for the categories. Concerning the result of the competition, relative values highlighted the differences between the groups. It is suggested that further studies are conducted, investigating the handgrip strength in judo athletes, for a better understanding of the differences between he categories and a closer investigation to the sport.
O objetivo deste trabalho foi avaliar os parâmetros das curvas de força de preensão manual isométrica em judocas de alto nível competitivo e de diferentes categorias. Participaram do estudo 44 judocas participantes do VII Troféu Brasil, realizado em Porto Alegre, RS. Para a mensuração da preensão manual foi utilizado um dinamômetro de preensão manual desenvolvido no Laboratório de Instrumentação (LABIN), do Centro de Ciências da Saúde e do esporte (CEFID) da Universidade do Estado de Santa Catarina (UDESC). A avaliação dos judocas foi realizada durante a pesagem da competição, em Porto Alegre, e a dos estudantes foi realizada no LABIN. A preensão manual foi avaliada durante 10 segundos, uma vez na mão dominante e uma vez na mão não-dominante, na posição sentada, adaptada da Sociedade Americana de Terapeutas da Mão (ASHT). Foram analisadas a Força máxima (FMAX), o Tempo até a força máxima (T100), impulso até a força máxima (imp100); Índice de queda (IQ) e o impulso total (imparea1). Para as análises, os judocas foram divididos em três grupos de acordo com a massa corporal (MC), em dois grupos de acordo com o resultado na competição e para a análise em função do T100 em dois grupos. No intuito de eliminar a influência da MC sobre os valores de força registrados em ambos os testes e possibilitar a comparação entre indivíduos de diferentes categorias e conseqüentemente de diferentes tamanhos corporais, foi realizado o ajuste alométrico na FMAX pela MC1, MC0,67 e MC0,393. Depois de realizada a análise estatística, foram encontradas diferenças entre as categorias mais leves e as mais pesadas de judocas em parâmetros da curva de preensão tanto sem quanto com ajuste alométrico. O ajuste alométrico da força pela MC0,393 pareceu eliminar a influência da MC na força para judocas de diferentes categorias. Considerando o resultado da competição o MC0,393 evidenciou a diferença de força entre os grupos em valores ajustados, sendo os melhores colocados mais fortes tanto absoluta quanto relativamente. Sugere-se que mais estudos sejam realizados investigando a força de preensão manual em judocas, buscando um maior entendimento das diferenças apontadas entre as diferentes categorias e uma maior aproximação da prática do esporte.
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Falls, Candice. "FRAILTY IN PATIENTS UNDERGOING LEFT VENTRICULAR ASSIST DEVICE IMPLANTATION." UKnowledge, 2019. https://uknowledge.uky.edu/nursing_etds/47.
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Heart failure is a progressive condition that affects over 5.7 million Americans and costs associated with heart failure account for 2-3 % of the national health care budget. The high rates of morbidity and mortality along with increased costs from readmissions associated with advanced heart failure have led to the exploration of advanced treatments such as left ventricular assist devices (LVADs). LVADS have demonstrated morbidity and mortality benefit but cost remains extensive with costs per quality-adjusted years > $400,000. With this in mind, it is important to identify those who are most likely to benefit from an LVAD to avoid unfavorable outcomes and cost. Although general guidelines and criteria for patient eligibility have been established, choosing patients for LVAD implantation remains challenging. A new focus on patient selection involves the presence of frailty. While frailty has been studied in the elderly population and in patients undergoing cardiac surgery, frailty in patients undergoing left ventricular assist device (LVAD) remains controversial. The purpose of this dissertation was to examine measures of frailty in patients undergoing LVAD implantation. The specific aims of this dissertation were to: (1) identify a feasible frailty measure in adults with end-stage heart failure who underwent LVAD implantation by testing the hypothesis that frailty would predict 30 day rehospitalization rates using Fried’s criteria, Short Physical Performance Battery test, handgrip strength, serum albumin and six minute walk test (2) Determine whether frailty measures improve 3 months post LVAD implantation (3) compare sensitivity of these three measures to change in frailty.
Surgical approaches, including heart transplantation and LVAD implantation, for patients with end-stage heart failure was discussed in this dissertation. Data from two subsets of participants who underwent LVADS at the University of Kentucky between 2014 and 2017 were included in the analysis for this dissertation. In the first study, we found that none of the measures are good predictors of frailty in patients with advanced heart failure who undergo LVAD implantation. Handgrip was the only marker of frailty that predicted 30 day readmission but the relationship was a negative association. In the second study, six-minute walk and low serum albumin levels reflect short-term improvement in frailty. These simple measures may be used to determine those patients who are responsive to LVAD implantation.
The findings of these studies filled some gaps in our understanding of markers of frailty in patients undergoing LVADs. We gained a better understanding of which markers of frailty are likely to improve in most people after LVAD implantation and thus frailty should not preclude candidate selection for an LVAD. Subsequently, more research is needed to investigate these markers and outcomes.
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Roberson, Audrey R. "Influence of Muscle Strength on Mobility in Critically Ill Adult Patients on Mechanical Ventilation." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5668.
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Patients in the intensive care unit (ICU) setting are prone to develop muscle weakness and the causes are multi-factorial. Muscle strength in adult, critically ill patients on mechanical ventilation decreases with immobility. The influence of muscle strength on different muscle groups and its influence on progressive mobility in the adult, critically ill patient on mechanical ventilation has not been examined. Identifying muscle strength in this patient population can benefit overall muscle health and minimize muscle deconditioning through a progressive mobility plan. The objective of this dissertation was to describe muscle strength in different muscle groups and to describe the influence of muscle strength on mobility in critically ill adult patients on mechanical ventilation (MV). Fifty ICU patients were enrolled in this descriptive, cross sectional study. Abdominal core, bilateral hand grip and extremity strength was measured using three measurement tools. Mobility was measured using the following scale: 0=lying in bed; 1=sitting on edge of bed; 2=sitting on edge of bed to standing; 3=walking to bedside chair and 4=walking >7 feet from the standing position. Predictors of mobility were examined using stepwise regression. Abdominal core, bilateral hand grip and extremity strength demonstrated statistically significant relationships with all variables. Extremity strength accounted for 82% of the variance in mobility and was the sole predictor (β=0.903; F=212.9; p=0.000). Future research addressing the outcomes of implementing a mobility protocol in this patient population and prioritizing when such a protocol should be implemented would be beneficial to ongoing plans to decrease MV, ICU and hospital days. Muscle strength tests implemented at the bedside are crucial to implementing a progressive mobility plan for critically ill adults while they are on MV therapy.