Abstract
The purpose of this study was to compare the effect of two different rest intervals between sets of isokinetic knee extension exercise on peak torque (PT), and Total Work (TW) in children. 18 boys (11.1 ± 0.52 yrs, 32.9 ± 3.32 kg and 142.6 ± 4.78 cm, Tanner stage 1 and 2) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s and 180°/s. The rest intervals between sets were 1 and 2 minutes. There was no significant decline in PT and TW when 1 and 2 min rest intervals were used at 60°/s and 180°/s. The present study indicated that children need only 1min to recover muscle performance, indicating high resistance to muscle fatigue during high intensity resistance exercise and different movement velocities.
Highlights
Recomendam-se novos estudos que procurem elucidar os efeitos das principais variáveis relacionadas ao treinamento resistido durante a infância
The purpose of this study was to compare the effect of two different rest intervals between sets of isokinetic knee extension exercise on peak torque (PT), and Total Work (TW) in children. 18 boys (11.1 ± 0.52 yrs, 32.9 ± 3.32 kg and 142.6 ± 4.78 cm, Tanner stage 1 and 2) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s and 180°/s
There was no significant decline in pico de torque (PT) and TW when 1 and 2 min rest intervals were used at 60°/s and 180°/s
Summary
José Carlos de Britto Vidal Filho∗ Carlos Ernesto Santos Ferreira** Marcelo Pereira Magalhães de Sales***. RESUMO O propósito do presente estudo foi verificar os efeitos de diferentes intervalos de recuperação (IRs) entre séries de exercícios resistidos em crianças nas variáveis de pico de torque (PT) e trabalho total (TT). Conclui-se que as crianças necessitam de curtos períodos de recuperação (um minuto) para a manutenção da performance muscular, indicando assim uma alta capacidade de resistência à fadiga em exercícios resistidos de alta intensidade e com diferentes velocidades de execução. Bottaro et al (2010) reportaram que um minuto é suficiente para a recuperação da força muscular em exercícios isocinéticos em idosos, porém não é suficiente para adultos jovens. O objetivo deste estudo foi verificar os efeitos de diferentes intervalos de recuperação entre séries de exercícios resistidos isocinéticos nas respostas de fadiga muscular em crianças. Esse estudo foi aprovado pelo Comitê de Ética em Pesquisa Institucional sob número 121/05
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