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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Gender and physiology in ice hockey a multidimensional study /

Gilenstam, Kajsa, January 2010 (has links)
Diss. (sammanfattning) Umeå : Umeå universitet, 2010. / Härtill 4 uppsatser. Pp. 62-73: Bibliography.
162

Men and women in hypoxia : the influence of tissue oxygenation on repeated-sprint ability

Smith, Kurt, University of Lethbridge. Faculty of Arts and Science January 2010 (has links)
This thesis examined the impact of oxygen (O2) availability on prefrontal cortex and muscle tissue oxygenation during repeated-sprint exercise (RSE) in men and women. Men and women matched for initial-sprint mechanical work performed during ten, 10-s sprints (30s of rest) in normoxia (21% FIO2) and acute hypoxia (13% FIO2). Mechanical work and arterial O2-saturation (SPO2) were obtained for every sprint. Oxy- and deoxygenated haemoglobin concentrations (O2Hb, HHb) were obtained via near-infrared spectroscopy. Hypoxia elicited lower SPO2 and work (14.8% & 7.4%, P < 0.05), larger (45.1%, P < 0.05) and earlier reductions in cortical oxygenation, and no differences between sexes. Cortical de-oxygenation and work decrement were strongly correlated (R2=0.85, P < 0.05). Muscle de-oxygenation was greater in men than women (67.3%, P < 0.05). These results show that O2 availability influences cortical oxygenation and performance equally in men and women, and suggest a more efficient muscle O2 uptake in women. / ix, 108 leaves : ill. ; 29 cm
163

Eletromiografia e teste de força máxima para avaliação de protocolo de acupuntura para dor de joelho de corredores / Electromyography and maximum strength test for evaluation protocol for pain of acupuncture runners knee

Siqueira, Ana Paula Rehme 17 December 2015 (has links)
A dor em membros inferiores é muito comum em atletas e pode representar um aspecto limitante ao rendimento. De acordo com estudos epidemiológicos, entre 27% e 70% dos corredores apresentam algum tipo de lesão durante o período de um ano, que causa desconforto durante os treinos e gera desempenho abaixo do esperado em competições. Na busca da atenuação e/ou solução para a dor de atletas corredores, a acupuntura pode ser benéfica, já que esta técnica é conhecida pelos seus efeitos de analgesia aplicados em região de joelho. O objetivo deste estudo foi de analisar os parâmetros relacionados à dor de joelho correlacionando os parâmetros de força das musculaturas avaliadas em corredores submetidos ao tratamento de acupuntura. Foi realizado um estudo descritivo no período de janeiro a junho de 2015, com 34 corredores, com idade de 20 a 52 anos, de ambos os sexos, que apresentassem dor em região de joelho. Os voluntários preencheram o Questionário de Dor McGill e a Escala Visual Analógica e foram submetidos ao teste de força máxima com avaliação eletromiográfica dos músculos reto femoral, vasto lateral e vasto medial e avaliação de força do quadríceps. Receberam semanalmente cinco atendimentos seguindo o protocolo de acupuntura desenvolvido neste estudo. Após, foram novamente submetidos ao teste de força e preenchimento do questionário e da escala de dor. Todos os voluntários relataram sentir diminuição da dor de joelho após o tratamento, que foi avaliada por meio do Questionário de Dor McGill que obteve inicialmente mediana de 17,5 e após o tratamento, 6,5 (melhora de 62,9%). E por meio da Escala Visual Analógica (EVA), que inicialmente obteve média de 6,0 e após o tratamento, média de 3,0 (melhora de 50,0%) e p<0,001 para ambos. A média de força do membro afetado foi de 20kgf e esta foi aumentada para 27kgf após o tratamento (incremento de 34% e p<0,001). Para o membro contralateral, a força média inicial era de 22kgf e após o tratamento foi de 27,90kgf (incremento de 25% e p<0,001). Para comprovar o ganho de força por meio da amplitude do sinal eletromiográfico, verificou-se aumento no número de recrutamento de unidades motoras para os três músculos avaliados em ambos os membros. O músculo reto femoral do membro afetado teve incremento de 43% (p<0,001), o músculo vasto medial de 25% (p<0,001) e vasto lateral de 16% (p=0,025). Para o membro contralateral, o músculo reto femoral teve incremento de 17% (p=0,023), o músculo vasto medial de 32% (p=0,029) e o músculo vasto lateral de 27% (p=0,002). Quanto à frequência mediana não houve diferença na velocidade de condução dos potenciais de ação, em ambos os membros. Conclui-se que o protocolo proposto se mostrou eficaz na diminuição da sintomatologia dolorosa em região de joelhos de atletas corredores, interferindo no ganho de força e no equilíbrio muscular. / Pain in the lower members is very common in athletes and may represent a limiting aspect to income. According to epidemiological studies, between 27% and 70% of the runners have some type of injury during the period of one year, which causes discomfort during practice and generates poor performance in competitions. In the pursuit of mitigation and / or solution to the pain of running athletes, acupuncture may be beneficial, as this technique is known for its analgesic effects applied on knee area. The objective of this study was to analyze parameters related to knee pain correlating the musculature strength parameters evaluated in corridors undergoing acupuncture treatment. It conducted a descriptive study from January to June 2015 with 34 runners, aged 20-52 years, of both sexes, who presented pain in the knee region. Volunteers completed the McGill Pain Questionnaire and the Visual Analogue Scale and were subjected to the maximum force test with electromyographic evaluation of the rectus femoris, vastus lateralis and vastus and quadriceps strength evaluation. They received five weekly attendances following the acupuncture protocol developed for this study. After, they were again subjected to strength testing and completing the questionnaire and the pain scale. All volunteers reported feeling decrease knee pain after treatment, which was assessed using the McGill Pain Questionnaire initially obtained median of 17.5 and after treatment, 6.5 (62.9% improvement). And through the Visual Analogue Scale (VAS), which initially had an median of 6.0 and after the average treatment of 3.0 (an improvement of 50.0%) and p <0.001 for both. The affected limb mean strength was 20kgf and 27kgf this was increased to after treatment (34% increment and p <0.001). For the contralateral member, the initial average strength was 22kgf and after treatment was 28kgf (increase of 25% and p <0.001). To prove the strength gain through the amplitude of the electromyographic signal, there was an increase in the number of motor unit recruitment for the three muscles evaluated in both members. The affected member of the rectus femoris muscle had increased by 43% (p <0.001), vastusvmuscle of 25% (p <0.001) and vastus lateralis of 16% (p = 0.025). For the contralateral leg, the rectus femoris muscle was increased by 17% (p = 0.023), the vastus medialis of 32% (p = 0.029) and lateral vastus 27% (p = 0.002). The median frequency no difference in conduction velocity of action potentials in both members. It is concluded that the proposed protocol is effective in reducing painful symptoms in knees region runners athletes, interfering with the gain in strength and muscle balance.
164

Eletromiografia e teste de força máxima para avaliação de protocolo de acupuntura para dor de joelho de corredores / Electromyography and maximum strength test for evaluation protocol for pain of acupuncture runners knee

Siqueira, Ana Paula Rehme 17 December 2015 (has links)
A dor em membros inferiores é muito comum em atletas e pode representar um aspecto limitante ao rendimento. De acordo com estudos epidemiológicos, entre 27% e 70% dos corredores apresentam algum tipo de lesão durante o período de um ano, que causa desconforto durante os treinos e gera desempenho abaixo do esperado em competições. Na busca da atenuação e/ou solução para a dor de atletas corredores, a acupuntura pode ser benéfica, já que esta técnica é conhecida pelos seus efeitos de analgesia aplicados em região de joelho. O objetivo deste estudo foi de analisar os parâmetros relacionados à dor de joelho correlacionando os parâmetros de força das musculaturas avaliadas em corredores submetidos ao tratamento de acupuntura. Foi realizado um estudo descritivo no período de janeiro a junho de 2015, com 34 corredores, com idade de 20 a 52 anos, de ambos os sexos, que apresentassem dor em região de joelho. Os voluntários preencheram o Questionário de Dor McGill e a Escala Visual Analógica e foram submetidos ao teste de força máxima com avaliação eletromiográfica dos músculos reto femoral, vasto lateral e vasto medial e avaliação de força do quadríceps. Receberam semanalmente cinco atendimentos seguindo o protocolo de acupuntura desenvolvido neste estudo. Após, foram novamente submetidos ao teste de força e preenchimento do questionário e da escala de dor. Todos os voluntários relataram sentir diminuição da dor de joelho após o tratamento, que foi avaliada por meio do Questionário de Dor McGill que obteve inicialmente mediana de 17,5 e após o tratamento, 6,5 (melhora de 62,9%). E por meio da Escala Visual Analógica (EVA), que inicialmente obteve média de 6,0 e após o tratamento, média de 3,0 (melhora de 50,0%) e p<0,001 para ambos. A média de força do membro afetado foi de 20kgf e esta foi aumentada para 27kgf após o tratamento (incremento de 34% e p<0,001). Para o membro contralateral, a força média inicial era de 22kgf e após o tratamento foi de 27,90kgf (incremento de 25% e p<0,001). Para comprovar o ganho de força por meio da amplitude do sinal eletromiográfico, verificou-se aumento no número de recrutamento de unidades motoras para os três músculos avaliados em ambos os membros. O músculo reto femoral do membro afetado teve incremento de 43% (p<0,001), o músculo vasto medial de 25% (p<0,001) e vasto lateral de 16% (p=0,025). Para o membro contralateral, o músculo reto femoral teve incremento de 17% (p=0,023), o músculo vasto medial de 32% (p=0,029) e o músculo vasto lateral de 27% (p=0,002). Quanto à frequência mediana não houve diferença na velocidade de condução dos potenciais de ação, em ambos os membros. Conclui-se que o protocolo proposto se mostrou eficaz na diminuição da sintomatologia dolorosa em região de joelhos de atletas corredores, interferindo no ganho de força e no equilíbrio muscular. / Pain in the lower members is very common in athletes and may represent a limiting aspect to income. According to epidemiological studies, between 27% and 70% of the runners have some type of injury during the period of one year, which causes discomfort during practice and generates poor performance in competitions. In the pursuit of mitigation and / or solution to the pain of running athletes, acupuncture may be beneficial, as this technique is known for its analgesic effects applied on knee area. The objective of this study was to analyze parameters related to knee pain correlating the musculature strength parameters evaluated in corridors undergoing acupuncture treatment. It conducted a descriptive study from January to June 2015 with 34 runners, aged 20-52 years, of both sexes, who presented pain in the knee region. Volunteers completed the McGill Pain Questionnaire and the Visual Analogue Scale and were subjected to the maximum force test with electromyographic evaluation of the rectus femoris, vastus lateralis and vastus and quadriceps strength evaluation. They received five weekly attendances following the acupuncture protocol developed for this study. After, they were again subjected to strength testing and completing the questionnaire and the pain scale. All volunteers reported feeling decrease knee pain after treatment, which was assessed using the McGill Pain Questionnaire initially obtained median of 17.5 and after treatment, 6.5 (62.9% improvement). And through the Visual Analogue Scale (VAS), which initially had an median of 6.0 and after the average treatment of 3.0 (an improvement of 50.0%) and p <0.001 for both. The affected limb mean strength was 20kgf and 27kgf this was increased to after treatment (34% increment and p <0.001). For the contralateral member, the initial average strength was 22kgf and after treatment was 28kgf (increase of 25% and p <0.001). To prove the strength gain through the amplitude of the electromyographic signal, there was an increase in the number of motor unit recruitment for the three muscles evaluated in both members. The affected member of the rectus femoris muscle had increased by 43% (p <0.001), vastusvmuscle of 25% (p <0.001) and vastus lateralis of 16% (p = 0.025). For the contralateral leg, the rectus femoris muscle was increased by 17% (p = 0.023), the vastus medialis of 32% (p = 0.029) and lateral vastus 27% (p = 0.002). The median frequency no difference in conduction velocity of action potentials in both members. It is concluded that the proposed protocol is effective in reducing painful symptoms in knees region runners athletes, interfering with the gain in strength and muscle balance.
165

A Comparison of Perceived Exertion Ratings of Aerobic Dance and Treadmill Performances Among College Age Males and Females

Walker, Nancy D. 08 1900 (has links)
The purposes of the study were to compare ratings of perceived exertion of aerobic dance and treadmill performances under equal work loads and to compare ratings of perceived exertion by males and females in aerobic dance and treadmill work. Subjects were twenty-six college men and women in co-educational conditioning classes. Heart rates were monitored after work bouts and perceived exertion was determined using Borg's RPE scale. Data were analyzed by a two-way analysis of variance with repeated measures. Conclusions of the investigation were: (1) aerobic dance is perceived as less strenuous than the treadmill under equal work loads, and (2) males and females perceive aerobic dance as less strenuous than the treadmill under equal energy bouts.
166

Long-term Effects of COVID-19 on Cardiovascular Function

Dill, Brooke 22 June 2022 (has links)
No description available.

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