A dedicated microcomputer-based instrument for interval analysis of multicomponent wave forms in single fibre EMG.

We have developed a self-contained microprocessor-based instrument compatible with conventional EMG equipment for the analysis of multicomponent SFEMG wave forms suitable for single operator use. Intervals between 4 components of a MUAP can be analysed using 3 types of threshold or window triggers. The amplitude, duration and polarity of each of these triggers can be varied independently. The instrument is portable and useful in the clinical setting.