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We undertake the study of the chaotic nature of mechanomygraphy (MMG) signal by recourse to the recent developments in the field of nonlinear dynamics. The MMG signals were measured from biceps brachii muscle of 5 subjects during fatigue of isometric contraction at 80% maximal voluntary contraction (MVC) level. Deterministic chaotic character was detected in all data by using the Volterra-Wiener-Korenberg...
This paper aims to investigate possible factors that affect the sEMG signal features, we analyzed the sEMG signals in bicep bracii (BB) muscle during fatiguing isometric flexions and recovery periods across a range of force levels. Twelve males performed isometric elbow flexions at 40%, 60%, 80% and 100% of their maximal voluntary contraction (MVC) with joint angle keeping at 90deg. And then they...
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