Estimation of the number of motor units in the human extensor digitorum brevis using MScanFit
Cliff S. Klein,
Hui Liu,
Yuan Xiong
Abstract:Objective
Our aim was to determine the number and size parameters of EDB motor units in healthy young adults using MScanFit, a novel approach to motor unit number estimation (MUNE). Since variability in MUNE is related to compound muscle action potential (CMAP) size, we employed a procedure to document the optimal EDB electromyographic (EMG) electrode position prior to recording MUNE, a neglected practice in MUNE.
Methods
Subjects were 21 adults 21–44 y. Maximum CMAPs were recorded from 9 sites in a 4 cm2 re… Show more
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