An Identification Method of Motor Units Using a 3D Template from Grid Surface Electromyography

Abstract

When the motor unit action potential is observed with a multi-channel surface electrode, the motor unit action potential that appears in each channel will contain information on three dimensions at the position and time. However, a method of using information on three dimensions for the technique of identifying the motor unit by using template matching from the multi-channel surface electromyography has not been found. The purpose of this study is development of a motor unit identification technique that uses the grid multipoint induced surface electromyography. Therefore, we developed a technique for identifying the motor unit that applied three dimensional templates to a 7×8 channel surface electromyogram with a grid surface electrode, searched for the time and the electrode positions in which the action potential waveform that belonged in each single motor appeared, and classified it.