Thesis (M.S.)--West Virginia University, 2010. / Title from document title page. Document formatted into pages; contains x, 154 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / While there is consistent evidence that episodes of physical exertion are associated with an immediately higher risk of acute ischemic vascular events, the risk of placental abruption immediately following episodes of physical exertion has not been studied. In a multicenter case-crossover study, we interviewed 663 women with placental abruption at 7 Peruvian hospitals between January 2013 and August 2015. We asked women about physical exertion in the hour before symptom onset and compared this with their frequency of physical exertion over the prior week. Compared with times with light or no exertion, the risk of placental abruption was 7.8 (95% confidence interval (CI): 5.5, 11.0) times greater in the hour following moderate or heavy physical exertion. The instantaneous incidence rate ratio of placental abruption within an hour of moderate or heavy physical exertion was lower for women who habitually engaged in moderate or heavy physical activity more than 3 times per week in the year before pregnancy (rate ratio (RR) = 3.0, 95% CI: 1.6, 5.9) compared with more sedentary women (RR = 17.3, 95% CI: 11.3, 26.7; P for homogeneity < 0.001), and the rate ratio was higher among women with preeclampsia/eclampsia (RR = 13.6, 95% CI: 7.0, 26.2) than among women without (RR = 6.7, 95% CI: 4.4, 10.0; P for homogeneity = 0.07). / Revisión por pares / Revisión por pares

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The present study aimed to examine how physical exertion influences cognitive performance.Orienteers (n = 23) competing at primarily a national to international level were recruited toparticipate. A randomised control trial using a cross-over research design required participantsto complete two trials measuring performance over a duration of 35 minutes. Specifically, inone trial participants undertook a cognitive testing protocol divided into five blocks comprisedof three separate cognitive tests that each lasted approximately one minute, between each testparticipants rested for one minute (i.e., one minute testing, followed by one minute resting fora duration of 35 minutes). The other trial required participants to complete the same cognitivetesting protocol whilst simultaneous completing a cycling time trial (i.e., aiming to cycle amaximum distance within the time of 35 minutes). Analyses revealed participants performedsignificantly worse on the cognitive tests whilst simultaneously completing the cycling timetrial. Upon closer scrutiny of the individual tests, designed to measure the cognitive functionsof decision-making, working memory, and updating, a similar trend in performance wasobserved although it was not found to be statistically significant. The findings of the presentstudy highlights implications for athletes, coaches, and sports psychologists in attempts tooptimise sport performance and minimize cognitive impairments during physical exertion. Thestudy supports the need for greater ecological validity in the investigation of cognitiveperformance in sport science research. The findings of the present study indicate that appliedsport psychology research may be enhanced by the use of research designs comprised ofcognitive tests that more closely replicate the cognitive demands of competition settings. / Denna studie syftade till att undersöka hur fysisk ansträngning påverkar kognitivprestation. Urvalet bestod av orienterare tävlandes på huvudsakligen nationell tillinternationell nivå (n = 23). Studien var en randomiserad korsstudie där deltagarna genomfördekognitiva tester vid två försökstillfällen på 35 minuter vardera. Under det ena försökstillfälletgenomförde deltagarna ett kognitivt testprotokoll, indelat i fem block innehållande tre testervardera, där varje test varade i ungefär en minut, följt av en minuts vila mellan testerna (dvs.en minuts testning, följt av en minuts vila med en varaktighet på 35 minuter). Det andraförsökstillfället bestod av att deltagarna genomförde samma kognitiva testprotokoll samtidigtsom de cyklade, med målet att komma så lågt som möjligt i distans under 35 minuter.Resultaten visade på signifikant lägre kognitiv prestation när deltagarna cyklade samtidigt.Genom närmare analys av varje enskilt test (som ämnade mäta de kognitiva funktionernabeslutsfattande, arbetsminne och uppdatering) hittades samma trend, men utan signifikans.Fynden kan vara av vikt för idrottare, tränare och idrottspsykologer i deras arbete för attoptimera prestation och minimera kognitiv försämring under fysisk ansträngning. De stödjeräven behovet av ekologisk validitet i studier ämnade att undersöka kognitiv prestation inomidrott. Vidare indikerar fynden att tillämpad idrottspsykologisk forskning kan förbättras genomatt använda en forskningsdesign innehållande kognitiva test som är mer jämförbara med dekognitiva utmaningar idrottare ställs inför under tävlingssammanhang.

Yearly, 22, 200 Canadians are diagnosed with lung cancer, with 80-85% of the cases being non-small cell lung cancer (NSCLC). With diagnoses being predominantly in the advanced stages, prognosis is poor and quality of life (QoL) becomes the focus of treatment. The main symptom cachexia, issues a loss of strength and impacts on an important aspect of QoL, physical function. Physical function is predominately assessed subjectively. Lately performance-based measures are gaining in popularity. One performance measure, the chair rise test, has not been validated in the NSCLC population and was the objective of this study. / Subjects completed the chair rise test, 6MWT, hand grip, and the SF-36 pre and post chemotherapy. Evidence for construct and discriminant validity but not predictive validity was provided for the chair rise test. The 60-second chair rise may be too strenuous for persons with severe disability but a standardized timed-based chair rise test is needed.

Thesis--University of Oklahoma. / Bibliography: leaves 94-96.

Thesis (doctoral)--Rijksuniversiteit te Groningen.

Thesis--University of Jyväskylä. / Text in English; abstract and summary also in Finnish. Thesis t.p. inserted. Includes bibliographical references (p. 69-84).

Thesis--University of Jyväskylä. / Text in English; abstract and summary also in Finnish. Thesis t.p. inserted. Includes bibliographical references (p. 69-84).

Made available in DSpace on 2014-12-17T15:16:19Z (GMT). No. of bitstreams: 1 JulianaFSB_DISSERT.pdf: 1062417 bytes, checksum: fcec1990119551c8987d8d15e28d8e09 (MD5) Previous issue date: 2013-12-18 / The term fatigability concerns the degree of fatigue associated with performing an activity of any type (physical, mental, emotional and / or social). Recently scales for assessing fatigue in the English language were created, however, gaps exist regarding the validity of these scales in relation to oxygen consumption and levels of perceived fatigue. Objective: To investigate the validity of perceived fatigability scale in older women frail and non-frail by the expired gases kinetics. Methods: This is a study of type validation, where were evaluated 48 elderly. The evaluation was conducted at two different sessions. In the first, data were collected demographic partners, as well as assessment of cognitive function, physical health, and the phenotype of frailty. The second was composed by the test 6-minute walk (6MWT) associated the expired gases kinects and assessment of perceived fatigability. Statistical analysis was performed a descriptive analysis and then we used the Pearson correlation test to evaluate the relationship between the measure of perceived fatigue and variables oxygen consumption (VO2), carbon dioxide production (VCO2), respiratory exchange ratio (RER)before and after 6MWT. We used a linear regression model initially considering the following explanatory variable: age, Body Mass Index (BMI), presence of frailty, comorbidities, level of physical activity, distance covered in the 6MWT , the energy cost of walking and severity of fatigability on performance. Results: The final sample consisted of 44 elderly women, 4 elderly were excluded because they didn t complete all phases of this study. The mean age obtained was 75 years (? 7.2 years). There was no significant correlation between fatigability measures and the values of VO2 ( r = .09 , p = .56 ) , VCO2 ( r = .173 , p = .26 ) , RER ( r = - .121 , p = .43 ). The final linear regression model showed that the energy cost of walking, the usual level of physical activity and the performance severity of fatigability explained 83.5 % (R2 = 0.835, p < 0.01) of the variation in the perceived fatigability. Conclusion: Our findings indicate a relationship between greater severity of fatigability and lower levels of physical activity and increased energy cost in walking, suggesting that the fatigability analyses using a simple numeric scale is valid and viable for assessment of fatigue in older women / O termo fatigabilidade diz respeito ao grau de fadiga associada ? realiza??o de uma atividade de qualquer natureza (f?sica, mental, emocional e/ou social). Nos ?ltimos anos foram criadas escalas de avalia??o da fatigabilidade na l?ngua inglesa, por?m, existem lacunas no tocante ? validade dessas escalas em rela??o ao consumo de oxig?nio e n?veis de fadiga percebida. Objetivo: Averiguar a validade da escala de fatigabilidade percebida para avalia??o da fadiga em idosas fr?geis e n?o fr?geis, antes e ap?s um teste de caminhada padronizado, por meio da an?lise cin?tica dos gases expirados. M?todos: Trata-se de um estudo de valida??o, onde foram avaliadas 48 idosas. A avalia??o foi realizada em dois momentos distintos. No primeiro, foram coletados os dados s?cios demogr?ficos, al?m da avalia??o da fun??o cognitiva, sa?de f?sica, e do fen?tipo da fragilidade. O segundo momento foi composto pelo teste de caminhada de 6 minutos (TC6M) associado a an?lise cin?tica dos gases expirados e da avalia??o da fatigabilidade percebida. Para an?lise estat?stica foi realizada uma an?lise descritiva e em seguida foi utilizado o teste de correla??o de Pearson para avaliar a rela??o entre a medida de fatigabilidade percebida e com as vari?veis: Consumo de oxig?nio (VO2), Produ??o de di?xido de carbono (VCO2) e Raz?o de troca respirat?ria (RER) pr? e p?s TC6M. Foi utilizado um modelo regress?o linear considerando inicialmente as seguintes vari?veis explicativas: idade, ?ndice de Massa Corp?rea (IMC), presen?a de fragilidade, n?mero de comorbidades, n?vel de atividade f?sica habitual, dist?ncia percorrida no TC6M, custo energ?tico da caminhada e gravidade da fatigabilidade no desempenho. Resultados: A amostra final foi composta por 44 idosas, 4 idosas foram exclu?das por n?o completarem todas as etapas do estudo. A m?dia de idade obtida foi 75 anos (? 7,2 anos). N?o foi observada correla??o significativa entre as medidas de fatigabilidade com os valores de VO2 (r=.09, p=.56), VCO2 (r=.173, p=.26), RER (r=-.121, p=.43). O modelo final da regress?o linear demonstrou que o custo energ?tico da caminhada, o n?vel habitual de atividade f?sica e a gravidade da fatigabilidade no desempenho explicaram 83,5% (R2=0,835; p<0,01) da varia??o na gravidade da fatigabilidade percebida. Conclus?o: Nossos achados demonstram uma rela??o entre a maior gravidade de fatigabilidade percebida e menores n?veis de atividade f?sica e maior custo energ?tico durante o teste de caminhada. Esses achados sugerem que a an?lise da fatigabilidade usando uma simples escala num?rica ? v?lida e vi?vel para avalia?ao da fadiga em idosas