Maximal contraction methods influence the magnitude and reliability of global electromyographic signal characteristics

摘要

Objective: The purpose was two-fold: (1) to examine differences in maximal voluntary isometric torque (MVIT) production, and electromyographic signal amplitude (EMG(AMP)) and mean power frequency (EMG(MPF)) values obtained during traditional (MVICTRAD), rapid (MVICRAPID), and ramp (MVICRAMP) maximal voluntary isometric contractions, and (2) to determine if there were differences in the reliability of MVIT, EMGAMP and EMG(MPF) among the three MVIC types.