Fig. 8From: First-in-human demonstration of floating EMG sensors and stimulators wirelessly powered and operated by volume conductionParametric acquisition using ZC rate. Participant 2 did three contractions during 6 s (progressive contraction followed by relaxation), which can be clearly seen by the parametric waveform obtained. After the samples were uploaded to the external system, a moving average filter was added to show the envelope of the contractionsBack to article page