A Flexible Wireless sEMG System for Wearable Muscle Strength and Fatigue Monitoring in Real Time

Abstract The detection of surface electromyography (sEMG) signals on the skin has attracted increasing attention because its ability to monitor muscle conditions in a noninvasive manner and thus possesses great application potential assess athletic status training efficiency real time or evaluate postoperative rehabilitation conveniently. Here, flexible wireless sEMG monitoring system that consists stretchable epidermal patch printed circuit board provide real‐time evaluation strength fatigue is reported. designed have good stretchability permeability optimized ensure low contact impedance with minimized background noise for signal acquisition high fidelity. Six commonly used time‐domain two frequency‐domain features extracted from are systematically analyzed, strategy feature selection pattern identification proposed eventually enables assessment by using an integrated wearable form.