For example, during the heelstrike phase of gait, the signal may be temporarily amplified or the waveform shape or frequency changed to match the joints natural rhythm of {HEAD ~ increased current flow} during {TAIL ~ joint compression} 
during
For example , during the heelstrike phase of gait , the signal may be temporarily amplified or the waveform shape or frequency changed to match the joints natural rhythm of { HEAD ~ increased current flow } during { TAIL ~ joint compression }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL