The coordinated activities of the four heads of the quadriceps femoris muscle results in knee
extension. It is still a matter of debate as to whether the different heads of the quadriceps can …

Context: The relationship between the amplitudes of the mechanomyographic (MMG) and
electromyographic (EMG) signals has been used to examine the “electromechanical …

Muscle fatigue is associated with reduced power output and work capacity of the skeletal
muscle. Fatigue-induced impairments in muscle function are believed to be a potential …

The purpose of this study was to examine the effect of manipulation of joint angle on
electromyographic (EMG) fatigue curves at different sites over the quadriceps muscle group …

The aim of this investigation was to study the relationships among movement velocity, torque
output and electromyographic (EMG) activity of the knee extensor muscles under eccentric …

The aim of this study was to examine isokinetic torque produced by highly skilled (HS) and
sedentary (S) human subjects, during knee extension, during maximal voluntary and …

Eleven subjects performed isometric knee extensor contractions at maximum voluntary
contraction (MVC), and at 70% of MVC preceding and following a fatigue test. The fatigue …

The present study was aimed at assessing muscle inhibition (MI) of the quadriceps muscles
of healthy subjects as a function of knee angle. The extent of muscle activation and of twitch …

The purposes of this investigation were to examine the effects of electrode placement and
innervation zone (IZ) location on:(a) the torque-related patterns of responses for absolute …

The purpose of this study was to investigate the magnitude of electromechanical delay
(EMD) and its possible dependence on muscle type, type of contraction, fatigue, level of …