Abstract
The purpose of this study was to verify if there is an effect of maximum hand grip (the act of performing or not the hand grip) on the balance control of judokas in a restrict posture, and also to verify if there is a correlation between the hand grip strength (HGS) and the balance control. Seven judokas were evaluated with a dynamometer and a stabilometric force platform, being measured, at the same time, the HGS and the center of pressure (COP). It was found that up to 80% of the COP variability was related to the hand grip demonstrating that it generates perturbations to the balance control. However, It was found correlations (r = 0,348 to 0,816) between de HGS and de COP displacement. With that, it can be concluded that, despite the hand grip generating perturbation on the balance, its behavior appears to be related to the body movements performed to sustain balance, indicating a possible correlation between this phenomenons.
Highlights
The purpose of this study was to verify if there is an effect of maximum hand grip on the balance control of judokas in a restrict posture, and to verify if there is a correlation between the hand grip strength (HGS) and the balance control
Seven judokas were evaluated with a dynamometer and a stabilometric force platform, being measured, at the same time, the HGS and the center of pressure (COP)
It was found that up to 80% of the COP variability was related to the hand grip demonstrating that it generates perturbations to the balance control
Summary
Jonathan Ache Dias 1 Wladymir Külkamp 1 Marcelo Diederichs Wentz 1 Angélica Cristiane Ovando 2 Noé Gomes Borges Junior 1 1 Laboratório de Instrumentação (LABIN), Centro de Ciências da Saúde e do Esporte, Universidade do Estado de Santa Catarina, Florianópolis, SC, Brasil. 2 Laboratório de Controle Motor (LADECOM), Centro de Ciências da Saúde e do Esporte, Universidade do Estado de Santa Catarina, Florianópolis, SC, Brasil. 2 Laboratório de Controle Motor (LADECOM), Centro de Ciências da Saúde e do Esporte, Universidade do Estado de Santa Catarina, Florianópolis, SC, Brasil. Resumo: O objetivo deste estudo foi verificar se existe efeito da preensão manual máxima (o ato de realizar ou não a preensão) sobre o controle do equilíbrio de judocas em postura restrita, além de verificar se existe correlação entre a força de preensão manual (FPM) e o controle do equilíbrio. Foi verificado que até 80% da variabilidade do CP pode ser atrelada a preensão manual indicando que a mesma gera perturbações no controle do equilíbrio. Com isso pode-se concluir que, apesar da preensão manual gerar perturbações no equilíbrio, seu comportamento parece estar relacionado com os movimentos do corpo realizados para manter o equilíbrio, indicando uma possível correlação entre esses fenômenos.
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