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Revista da Educação Física / UEM

On-line version ISSN 1983-3083

Abstract

VIDAL FILHO, José Carlos de Britto et al. Effects of different rest intervals on muscular performance in children. Rev. educ. fis. UEM [online]. 2011, vol.22, n.4, pp.613-622. ISSN 1983-3083.  http://dx.doi.org/10.4025/reveducfis.v22i4.13166.

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.

Keywords : Resistance exercise; Children; Muscular fatigue; Rest interval; Isokinetic exercise.

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