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Artigos originais • Rev. Bras. Ciênc. Esporte 37 (4) • Oct-Dec 2015 • https://doi.org/10.1016/j.rbce.2015.08.008   copy

The rate of force development during isokinetic contractions of knee extensors is not influenced by active static stretching in active individuals

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The objective of this study was to investigate the influence of active static stretch (SS) on the peak torque (PT) and rate of force development (RFD) of knee extensors. Twelve active subjects performed the following tests in random order: 1) Five maximal isokinetic concentric contractions for knee extensors at 60 and 180°.s−1 to determine PT and RFD, and; 2) The same protocol after two SS exercises for the dominant leg extensors (10 × 30 s for each exercise). There was no modification of PT and RFD after the SS for both velocities. The time corresponding to the delta of initial angles of movement (90-80°) at 180°.s−1 was significantly reduced after SS. It is possible to conclude that SS exercises may increase the velocity of movement during explosive actions, without modifing the PT and RFD.

KEYWORDS
Flexibility; Explosive strength; Torque; Concentric

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