Predictors of residual force enhancement in voluntary contractions of elbow flexors.

ABSTRACT:

Background

The steady-state increase in muscle force generating potential following a lengthening contraction is called residual force enhancement (RFE). In this study, we aimed to test for differences in torque, electromyographic activity (EMG), and the associated neuromuscular efficiency (NME) between isometric voluntary contractions of elbow flexors preceded and not preceded by a lengthening contraction. The dependence of such differences on (i) stretch amplitude, (ii) the region of the force-length (FxL) relationship where contraction occurs, and (iii) the individual's ability to produce (negative) work during the stretch was investigated.

Methods

Sixteen healthy adults participated in the study. Elbow flexor torque, angle, and biceps brachii EMG for purely isometric con

SUBMITTER: de Brito Fontana H 

PROVIDER: S-EPMC6189239 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature