Abstract.  Muscle fatigue is usually defined as a decrease in force production, or an inability to regenerate the original force in the presence of an increased perception of effort because of action potential failure, excitation - contraction coupling failure, or impairment of cross bridge cycling, in the presence of unchanged or increasing neural drive. The present study was designed to examine through-out EMGS and MMG the relationship between the development of muscle fatigue and the effect it has on sport performance, specifically during maximal voluntary contraction.

Keywords: muscle fatigue, athletes, electromyography, mechanography