Fig. 6: EMG measurements using PWS dry electrodes.

a Monitoring of the EMG signal on a forearm gripping a ball. The three balls had different moduli of 0.21, 0.27, and 0.33 GPa, respectively. b EMG signals while gripping the balls. c Variations of the EMG signal amplitude and the gripping force with the modulus of the balls. d Using EMG signals to control the motion of a robotic hand, including opening and closing. e EMG signals produced by the flexion/extension of different fingers. f EMG signal intensities produced by the five fingers.