Correlations between MUNIX and adapted multiple point stimulation MUNE methods

Motor unit number estimate (MUNE) usually represents the ratio of the maximal compound muscle action potential (CMAP) divided by the average surface-recorded motor unit potential (SMUP). MUNE techniques differ in how single motor units (MU) are obtained. McComas et al. (1971) introduced the first MUNE technique, referred as the incremental technique. Incremental stimulation was applied at one stimulation point on the nerve and the stimulus intensity was gradually increased from a subthreshold value until 11 increments in the muscle response were obtained.

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