Comparação do efeito de duas cadeiras de rodas esportivas na velocidade de propulsão e eficiência neuromuscular do músculo tríceps braquial em atletas praticantes de basquetebol sobre rodas
Data
2012-02-13
Autores
Castro, Nathalia Hupsel Silva de 
Orientadores
Silva, Maria Stella Peccin da
Tipo
Dissertação de mestrado
Título da Revista
ISSN da Revista
Título de Volume
Resumo
Objetivo: Avaliar o efeito de duas cadeiras de rodas esportivas diferentes na
eficiência neuromuscular do músculo tríceps braquial e a velocidade de propulsão através
do tempo de deslocamento. Métodos: Foram avaliados 26 atletas praticantes de
basquetebol sobre cadeira de rodas, entre atletas 8 amadores e 18 profissionais, no qual
foram distribuídos em dois grupos de acordo com sua classificação funcional. Cada atleta
realizou a fase de impulsão, na qual a cadeira de rodas estava presa à célula de carga, cuja
função era realizar uma contração voluntária máxima (CVM), dessa forma, foram
avaliados a atividade muscular e a força muscular do tríceps braquial, e um teste de
velocidade máxima de deslocamento de 20 metros, a fim de comparar a duração do
percurso, com duas cadeiras de rodas esportivas diferentes, sendo estas, sua cadeira de
rodas esportiva de uso individual e uma cadeira de rodas esportiva padronizada para a sua
classificação. Resultados: Foram encontradas diferenças significativas entre as cadeiras
de rodas para as variáveis: força muscular (p=0,018) e eficiência neuromuscular
(p=0,015), no qual a cadeira de rodas padronizada apresentou maior valor nas avaliações,
e na variável tempo de deslocamento (p=0,010), cuja cadeira de rodas individual
apresentou menor tempo de deslocamento no teste de velocidade. Não foram encontradas
diferenças significativas de recrutamento muscular, esforço subjetivo e angulação inicial
do cotovelo entre as cadeiras de rodas, individual e padrão. Conclusão: A cadeira de
rodas interfere na velocidade máxima do atleta, força muscular e eficiência
neuromuscular do tríceps braquial, e desta forma, a análise de um ergômetro-padrão
ajustado às diferentes deficiências não possibilita que os atletas atinjam sua melhor
performance física.
Objective: to evaluate the effect of two efficient sport wheelchairs in the neuromuscular efficiency of the triceps brachial muscle and the maximum speed of displacement. Methods: 26 athletes practicing wheelchair basketball were evaluated, among amateur and professional athletes, divided into two groups, according to their functional classification. Each athlete performed the impulsion phase, in which the wheelchair was attached to the load cell, in order to achieve a maximal voluntary contraction (MVC) and a maximum displacement speed test of 20 meters, with two different sport wheelchairs, being their usual sport wheelchair of individual use and a sport wheelchair standardized for their classification. Results: Significant differences have been found between the wheelchairs for the variables muscular strength (p=0,018), neuromuscular efficiency (p=0,015), wich the wheelchair standardized showed greater results than the individual chair, but the maximum displacement speed (p=0,010) showed better results than the standard chair. Significant differences have also been found between groups 1 and 2 for the variables maximum speed and initial angulation of the elbow, with p<0,05. No significant difference has been found about muscular recruitment between the wheelchairs. Conclusion: The wheelchair interferes on the physical fitness of the basketball athlete, as well as the maximum speed of the athlete, muscular strength and neuromuscular efficiency of the brachial triceps and the analysis of a standard ergometer adjusted to the different deficiencies do not enable the athletes to hit their best physical performance
Objective: to evaluate the effect of two efficient sport wheelchairs in the neuromuscular efficiency of the triceps brachial muscle and the maximum speed of displacement. Methods: 26 athletes practicing wheelchair basketball were evaluated, among amateur and professional athletes, divided into two groups, according to their functional classification. Each athlete performed the impulsion phase, in which the wheelchair was attached to the load cell, in order to achieve a maximal voluntary contraction (MVC) and a maximum displacement speed test of 20 meters, with two different sport wheelchairs, being their usual sport wheelchair of individual use and a sport wheelchair standardized for their classification. Results: Significant differences have been found between the wheelchairs for the variables muscular strength (p=0,018), neuromuscular efficiency (p=0,015), wich the wheelchair standardized showed greater results than the individual chair, but the maximum displacement speed (p=0,010) showed better results than the standard chair. Significant differences have also been found between groups 1 and 2 for the variables maximum speed and initial angulation of the elbow, with p<0,05. No significant difference has been found about muscular recruitment between the wheelchairs. Conclusion: The wheelchair interferes on the physical fitness of the basketball athlete, as well as the maximum speed of the athlete, muscular strength and neuromuscular efficiency of the brachial triceps and the analysis of a standard ergometer adjusted to the different deficiencies do not enable the athletes to hit their best physical performance
Descrição
Citação
CASTRO, Nathalia Hupsel Silva de. Comparação do efeito de duas cadeiras de rodas esportivas na velocidade de propulsão e eficiência neuromuscular do músculo tríceps braquial em atletas praticantes de basquetebol sobre rodas. 2012. 50f. Dissertação (Mestrado Interdisciplinar em Ciências da Saúde) - Instituto de Saúde e Sociedade, Universidade Federal de São Paulo, Santos, 2012.