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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.
1

Relação entre a dinamometria isocinética e a incidência de lesões musculoesqueléticas em atletas de futebol de salão na fase pré temporada / Relation between isokinetic dynamometry and the incidence of musculoskeletal injuries during pre-season period in indoor soccer players

Andrade, Nataly Vasconcellos Santos de 05 November 2008 (has links)
INTRODUÇÃO: O aumento da prática do futebol de salão como lazer ou desempenho trouxe mais lesões do sistema musculoesquelético, que passaram a exigir maior atenção e cuidados dos profissionais de saúde. OBJETIVO: Avaliar os parâmetros da dinamometria isocinética dos músculos flexores e extensores do joelho na fase pré temporada, verificar a incidência de lesões musculoesqueléticas de membros inferiores nos jogadores de futebol de salão e fazer a relação entre as lesões e a função muscular. MÉTODOS: Foram avaliados 92 jogadores de futebol de salão. A avaliação isocinética foi feita por meio do dinamômetro isocinético Cybex, modelo Norm nas velocidades angulares de 60o /segundos e 180o/segundos. Durante a temporada de jogos foi realizada a coleta das lesões. Foram analisados o pico de torque, o trabalho total e a relação flexora/extensora corrigidos pela massa corporal e expressos em porcentagem. Os dados foram submetidos a análises descritivas (média, desvio padrão e porcentagem) e foram utilizados os testes de Wilcoxon e Kruskal-Wallis para comparações das variáveis quantitativas e qualitativas (P<0,05). RESULTADOS: Diferenças significantes foram encontradas na pré temporada para o pico de torque flexor, relação flexora/extensora a 60o/s e trabalho flexor total para as duas velocidades, sendo que o lado dominante apresentou valores maiores. A lesão predominante foi a entorse de tornozelo em ambos os membros, sem diferença significante. Não foram observadas diferenças estatisticamente significantes entre as lesões e as variáveis da dinamometria isocinética. CONCLUSÃO: Este estudo sugere que os jogadores de futebol de salão têm alterações nas variáveis isocinéticas, nos membros dominantes e nos membros não dominantes, dependendo da velocidade angular, porém não há relação entre tais lesões musculoesqueléticas e as variáveis isocinéticas / INTRODUCTION: The increasing number of indoor soccer players, both in amateur and in professional teams, has given rise to more injuries to the musculoskeletal system, calling more attention and demanding greater care of healthcare providers. AIMS: To assess the parameters of isokinetic dynamometry in knee flexors and extensors muscles during pre-season period, detect the incidence of lower limb musculoskeletal injuries in indoor soccer players and establish a relation between injuries and muscular function. METHOD: Ninety-two indoor soccer players were assessed. Isokinetic assessment was conducted by using a Cybex isokinetic dynamometer, Norm model at angular velocities of 60o/sec. and 180o/sec. During the regular soccer season all injury events were recorded. Peak torque, total muscular work and flexor/extensor ratio corrected for body mass were analysed and expressed as a percent scale. Descriptive analysis of data (mean, standard deviation and percentage), as well as Wilcoxon and Kruskal-Wallis tests for comparison of quantitative and qualitative variables (P<.05) were performed. RESULTS: In the run-up to the season, significant differences were found for flexor peak torque, flexor/extensor ratio at 60o/s and total flexor work for the two speeds. The dominant side showed higher values. Ankle strain was the prevailing injury in both limbs, and the difference was not significant between both. No statistically significant differences were observed concerning injuries and isokinetic dynamometry variables. CONCLUSION: The results of the study suggest that indoor soccer players have changes in isokinetic variables, in both dominant and non-dominant limbs, depending on the angular velocity, although no relation between musculoskeletal injuries and such isokinetic variables was found
2

Relação entre a dinamometria isocinética e a incidência de lesões musculoesqueléticas em atletas de futebol de salão na fase pré temporada / Relation between isokinetic dynamometry and the incidence of musculoskeletal injuries during pre-season period in indoor soccer players

Nataly Vasconcellos Santos de Andrade 05 November 2008 (has links)
INTRODUÇÃO: O aumento da prática do futebol de salão como lazer ou desempenho trouxe mais lesões do sistema musculoesquelético, que passaram a exigir maior atenção e cuidados dos profissionais de saúde. OBJETIVO: Avaliar os parâmetros da dinamometria isocinética dos músculos flexores e extensores do joelho na fase pré temporada, verificar a incidência de lesões musculoesqueléticas de membros inferiores nos jogadores de futebol de salão e fazer a relação entre as lesões e a função muscular. MÉTODOS: Foram avaliados 92 jogadores de futebol de salão. A avaliação isocinética foi feita por meio do dinamômetro isocinético Cybex, modelo Norm nas velocidades angulares de 60o /segundos e 180o/segundos. Durante a temporada de jogos foi realizada a coleta das lesões. Foram analisados o pico de torque, o trabalho total e a relação flexora/extensora corrigidos pela massa corporal e expressos em porcentagem. Os dados foram submetidos a análises descritivas (média, desvio padrão e porcentagem) e foram utilizados os testes de Wilcoxon e Kruskal-Wallis para comparações das variáveis quantitativas e qualitativas (P<0,05). RESULTADOS: Diferenças significantes foram encontradas na pré temporada para o pico de torque flexor, relação flexora/extensora a 60o/s e trabalho flexor total para as duas velocidades, sendo que o lado dominante apresentou valores maiores. A lesão predominante foi a entorse de tornozelo em ambos os membros, sem diferença significante. Não foram observadas diferenças estatisticamente significantes entre as lesões e as variáveis da dinamometria isocinética. CONCLUSÃO: Este estudo sugere que os jogadores de futebol de salão têm alterações nas variáveis isocinéticas, nos membros dominantes e nos membros não dominantes, dependendo da velocidade angular, porém não há relação entre tais lesões musculoesqueléticas e as variáveis isocinéticas / INTRODUCTION: The increasing number of indoor soccer players, both in amateur and in professional teams, has given rise to more injuries to the musculoskeletal system, calling more attention and demanding greater care of healthcare providers. AIMS: To assess the parameters of isokinetic dynamometry in knee flexors and extensors muscles during pre-season period, detect the incidence of lower limb musculoskeletal injuries in indoor soccer players and establish a relation between injuries and muscular function. METHOD: Ninety-two indoor soccer players were assessed. Isokinetic assessment was conducted by using a Cybex isokinetic dynamometer, Norm model at angular velocities of 60o/sec. and 180o/sec. During the regular soccer season all injury events were recorded. Peak torque, total muscular work and flexor/extensor ratio corrected for body mass were analysed and expressed as a percent scale. Descriptive analysis of data (mean, standard deviation and percentage), as well as Wilcoxon and Kruskal-Wallis tests for comparison of quantitative and qualitative variables (P<.05) were performed. RESULTS: In the run-up to the season, significant differences were found for flexor peak torque, flexor/extensor ratio at 60o/s and total flexor work for the two speeds. The dominant side showed higher values. Ankle strain was the prevailing injury in both limbs, and the difference was not significant between both. No statistically significant differences were observed concerning injuries and isokinetic dynamometry variables. CONCLUSION: The results of the study suggest that indoor soccer players have changes in isokinetic variables, in both dominant and non-dominant limbs, depending on the angular velocity, although no relation between musculoskeletal injuries and such isokinetic variables was found
3

What makes war? : assessing Iron Age warfare through mortuary behaviour and osteological patterns of violence

King, Sarah Suzanne January 2010 (has links)
There is an ongoing debate concerning the nature of warfare and violence in the Iron Age of Britain. Interpretations regarding material remains from this period fluctuate between classifying instruments of violence (i.e. swords, spears, hillforts) as functional tools of war and as ritual symbolic devices. Human skeletal remains provide the most unequivocal evidence for violent encounters, but were often missing from these debates in the past. This thesis addresses this lack of treatment by analyzing the patterns of traumatic injuries at sites from two distinct regions in Iron Age Britain (East Yorkshire and Hampshire). The human remains from these sites show clear markers of interpersonal violence. When the remains are placed in context with the mortuary treatment, it is evident that violence and ritual were inextricably linked. In East Yorkshire, combat may have been ritualized through duelling and competition performance. In Hampshire, individuals with perimortem injures are often found in special deposits such as pits, ditches and domestic areas, suggesting their use in ritual processes that distinguish them from the general population. This provides a basis for understanding warfare and violence during the Iron Age of Britain and how communities negotiated the social tensions caused by violent interactions.
4

What makes war? Assessing Iron Age warfare through mortuary behaviour and osteological patterns of violence.

King, Sarah S. January 2010 (has links)
There is an ongoing debate concerning the nature of warfare and violence in the Iron Age of Britain. Interpretations regarding material remains from this period fluctuate between classifying instruments of violence (i.e. swords, spears, hillforts) as functional tools of war and as ritual symbolic devices. Human skeletal remains provide the most unequivocal evidence for violent encounters, but were often missing from these debates in the past. This thesis addresses this lack of treatment by analyzing the patterns of traumatic injuries at sites from two distinct regions in Iron Age Britain (East Yorkshire and Hampshire). The human remains from these sites show clear markers of interpersonal violence. When the remains are placed in context with the mortuary treatment, it is evident that violence and ritual were inextricably linked. In East Yorkshire, combat may have been ritualized through duelling and competition performance. In Hampshire, individuals with perimortem injures are often found in special deposits such as pits, ditches and domestic areas, suggesting their use in ritual processes that distinguish them from the general population. This provides a basis for understanding warfare and violence during the Iron Age of Britain and how communities negotiated the social tensions caused by violent interactions. / Note: Content of Appendix 2 is not available.
5

Estudo experimental dos efeitos da sonoforese com Arnica montana sobre o processo de regeneração do músculo esquelético em ratos Wistar / Experimental study on the effects of phonophoresis with Arnica montana onto regeneration process in Wistar rats lesioned skeletal muscles

Alfredo, Patrícia Pereira 12 May 2008 (has links)
A proposta deste estudo foi verificar o efeito da sonoforese com Arnica montana sobre a fase inflamatória aguda de uma lesão muscular. Para isso, 40 ratos Wistar machos (300±50 g), lesados cirurgicamente, foram divididos em 4 grupos: grupo controle (C), 10 ratos lesados, não submetidos a tratamento algum; grupo ultra-som (US), 10 ratos lesados, tratados com US; grupo ultrasom+ arnica (US+A), 10 ratos lesados, tratados com sonoforese com gel de arnica; e grupo arnica (A), 10 ratos lesados, tratados com massagem de gel de arnica. O ultra-som com freqüência de 1 MHz e 0,5 W/cm2 de intensidade foi aplicado 24 h após a lesão uma vez ao dia durante 3 minutos, por 3 dias; o grupo US+A recebeu aplicação de ultra-som idêntica, mas com gel de arnica; o grupo A recebeu massagem de gel de arnica nos mesmos tempo e período. O terço médio do músculo tibial anterior lesado foi removido, montando-se séries de lâminas para análise quantitativa (contagem de células mononucleares e polimorfonucleares) e qualitativa (morfologia das fibras musculares). Os resultados foram tratados estatisticamente, com nível de significância p<0,05. Foi encontrada maior densidade de células mononucleares nos grupos US, US+A e A, sem diferença entre estes, mas com diferença significativa (p<0,0001) destes para o grupo controle, onde a densidade de células polimorfonucleares também foi significativamente diferente (p=0,0134) dos demais. Ainda quanto a essa densidade, não houve diferença entre os grupos US e US+A, mas houve entre o grupo A (p=0,0134) e os demais. A análise qualitativa revelou estágio mais avançado de regeneração nos tecidos dos grupos US e US+A igualmente. A similaridade de resultados entre os grupos US e US+A leva a concluir que a sonoforese com arnica não foi mais eficaz que o ultra-som na recuperação da lesão muscular. Sugere-se que o US pode ter anulado ou minimizado o efeito regenerativo da Arnica montana por sonoforese na fase inflamatória aguda da lesão muscular. / This study aimed at verifying the effects of ultrasound associated to Arnica montana (phonophoresis) onto the acute phase of an inflammatory muscle lesion. Forty Wistar male rats (300±50 g), of which the Tibialis Anterior muscle was surgically lesioned, were divided into 4 groups (n=10 each): control group received no treatment; the ultrasound group (US) was treated with 1-MHz, 0.5W/cm2-intensity US during 3 minutes, once a day, for 3 days; the US+A group was treated with arnica phonophoresis (the same US parameters plus arnica gel); and the arnica group (A) was submitted to massage with arnica gel, also during 3 minutes, once a day, for 3 days. Treatment started 24 h after the surgical lesion. On the 4th day after lesion animals were sacrificed and sections of the lesioned, inflamed muscle were removed for quantitative (mononuclear and polymorphonuclear cell count) and qualitative analysis (muscle fiber morphology). Collected data from the 4 groups were statistically analysed and the significance level set at p<0.05. Results show higher mononuclear cell density in all three treated groups with no significant difference between them, but values were significantly different (p<.0001) when compared to control group\'s. As to polymorphonuclear cell density, significant differences were found between control group (p=0.0134) and the other three groups; the arnica group presented lesser density of polymorphonuclear cells when compared (p=0.0134) to the other groups, and no significant differences were found between US and US+A groups. Qualitative analysis showed a more advanced regeneration stage in tissues from both US and US+A groups. The similarity of results between US and US+A groups points to ineffectiveness of Arnica montana phonophoresis, US having seemingly checked or minimized its anti-inflammatory effect.
6

Estudo experimental dos efeitos da sonoforese com Arnica montana sobre o processo de regeneração do músculo esquelético em ratos Wistar / Experimental study on the effects of phonophoresis with Arnica montana onto regeneration process in Wistar rats lesioned skeletal muscles

Patrícia Pereira Alfredo 12 May 2008 (has links)
A proposta deste estudo foi verificar o efeito da sonoforese com Arnica montana sobre a fase inflamatória aguda de uma lesão muscular. Para isso, 40 ratos Wistar machos (300±50 g), lesados cirurgicamente, foram divididos em 4 grupos: grupo controle (C), 10 ratos lesados, não submetidos a tratamento algum; grupo ultra-som (US), 10 ratos lesados, tratados com US; grupo ultrasom+ arnica (US+A), 10 ratos lesados, tratados com sonoforese com gel de arnica; e grupo arnica (A), 10 ratos lesados, tratados com massagem de gel de arnica. O ultra-som com freqüência de 1 MHz e 0,5 W/cm2 de intensidade foi aplicado 24 h após a lesão uma vez ao dia durante 3 minutos, por 3 dias; o grupo US+A recebeu aplicação de ultra-som idêntica, mas com gel de arnica; o grupo A recebeu massagem de gel de arnica nos mesmos tempo e período. O terço médio do músculo tibial anterior lesado foi removido, montando-se séries de lâminas para análise quantitativa (contagem de células mononucleares e polimorfonucleares) e qualitativa (morfologia das fibras musculares). Os resultados foram tratados estatisticamente, com nível de significância p<0,05. Foi encontrada maior densidade de células mononucleares nos grupos US, US+A e A, sem diferença entre estes, mas com diferença significativa (p<0,0001) destes para o grupo controle, onde a densidade de células polimorfonucleares também foi significativamente diferente (p=0,0134) dos demais. Ainda quanto a essa densidade, não houve diferença entre os grupos US e US+A, mas houve entre o grupo A (p=0,0134) e os demais. A análise qualitativa revelou estágio mais avançado de regeneração nos tecidos dos grupos US e US+A igualmente. A similaridade de resultados entre os grupos US e US+A leva a concluir que a sonoforese com arnica não foi mais eficaz que o ultra-som na recuperação da lesão muscular. Sugere-se que o US pode ter anulado ou minimizado o efeito regenerativo da Arnica montana por sonoforese na fase inflamatória aguda da lesão muscular. / This study aimed at verifying the effects of ultrasound associated to Arnica montana (phonophoresis) onto the acute phase of an inflammatory muscle lesion. Forty Wistar male rats (300±50 g), of which the Tibialis Anterior muscle was surgically lesioned, were divided into 4 groups (n=10 each): control group received no treatment; the ultrasound group (US) was treated with 1-MHz, 0.5W/cm2-intensity US during 3 minutes, once a day, for 3 days; the US+A group was treated with arnica phonophoresis (the same US parameters plus arnica gel); and the arnica group (A) was submitted to massage with arnica gel, also during 3 minutes, once a day, for 3 days. Treatment started 24 h after the surgical lesion. On the 4th day after lesion animals were sacrificed and sections of the lesioned, inflamed muscle were removed for quantitative (mononuclear and polymorphonuclear cell count) and qualitative analysis (muscle fiber morphology). Collected data from the 4 groups were statistically analysed and the significance level set at p<0.05. Results show higher mononuclear cell density in all three treated groups with no significant difference between them, but values were significantly different (p<.0001) when compared to control group\'s. As to polymorphonuclear cell density, significant differences were found between control group (p=0.0134) and the other three groups; the arnica group presented lesser density of polymorphonuclear cells when compared (p=0.0134) to the other groups, and no significant differences were found between US and US+A groups. Qualitative analysis showed a more advanced regeneration stage in tissues from both US and US+A groups. The similarity of results between US and US+A groups points to ineffectiveness of Arnica montana phonophoresis, US having seemingly checked or minimized its anti-inflammatory effect.

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