fig1
From: In-situ real-time monitoring of muscle energetics with soft neural-mechanical wearable sensing
Figure 1. Neural-mechanical sensor. (A) Comparison between deformation and EMG during voluntary muscle contraction; (B) Schematic of the neural-mechanical sensor; (C) Appearance of the sensor prototype with labeled dimensions; (D) Experiment of weight lifting. The volunteer subject performed the weight lifting with muscle concentric, isometric, and eccentric contractions; (E) Responses of the measured EMG and Cs under different muscle contractions for testing muscle fatigue; (F) Illustration of Ew calculation. The Ew is calculated with integration of the RMS of EMG and Cs for different muscle contraction modes during the fatigue testing. EMG: Electromyography; RMS: root mean square.
