Comparison of Endurance Time Prediction of Biceps Brachii Using Logarithmic Parameters of a Surface Electromyogram during Low-Moderate Level Isotonic Contractions

At relatively low effort level tasks, surface electromyogram (sEMG) spectral parameters have demonstrated an inconsistent ability to monitor localized muscle fatigue and predict endurance capacity. The main purpose of this study was assess the potential time (Tend) prediction using logarithmic compared raw data. Ten healthy subjects performed five sets voluntary isotonic contractions until their exhaustion at 20% maximum contraction (MVC) level. We extracted sEMG namely power in frequency band (LFB), mean (MPF), high-to-low ratio between two bands (H/L-FB), Dimitrov index (DSI), moments (H/L-SM), then converted them logarithms. Changes these ten were monitored area linear regressive slope as statistical predictors estimating from onset every 10% Tend. Significant correlations (r > 0.5) found log(Tend) slopes H/L-SM In conclusion, can be used describe changes content employed a better predictor Tend comparison parameters.