REsUMOIntrodução: A manipulação do intervalo entre séries pode influenciar o desempenho de atividades subsequentes. Objetivo: Comparar o efeito do intervalo de alongamento estático de forma continua e intermitente no desempenho de flexores de punho. Métodos: A amostra foi composta por 14 adultos jovens, hígidos, do gênero masculino (idade 31±9 anos; estatura 178±0,7 cm; massa 85±12 Kg). Foi avaliada a amplitude de movimento passivo (ADMP) em extensão de punho, a força isométrica máxima de flexão de punho associado a eletromiografia superficial antes e depois de dois protocolos de alongamento com diferentes intervalos entre séries. Para cada sujeito, um dos membros superiores foi alongado com o protocolo contínuo (CON INT (81°±10 and 94°±10, P<0.001) and CON (87°±12 and 96°±11, P=0.004). The results for peak force showed significant reduction in post-intervention conditions for both protocols: INT (205±54 Kgf and 148±56 Kgf, P<0.001) and CON (211±39 Kg and 144±36 Kgf, P<0.001). The results for the rate of force development showed significant increase in pre and post-intervention conditions for both protocols INT (0.52 ± 0.29 Kgf/ms and 1.24±0.45 Kgf/ms, P<0.001) and CON (0.43±0.29 Kgf/ms and 1.11±0.34 Kgf/ms, P<0.001). Conclusion: Both protocols increased the passive range of motion, reduced the peak force and the rate of force development, without changes in the activation of wrist flexors.
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