Analysis of the electromyographic interference pattern.

Journal Article (Journal Article;Review)

The electromyographic interference pattern (EMG-IP) contains information about the number, firing rate, and recruitment characteristics of motor units, and information regarding the waveforms of the recruited motor units. Muscle and nerve diseases produce characteristic changes in the IP that can be distinguished by IP analysis. This analysis complements analysis of the motor unit potentials. The electromyographer usually assesses the IP signals subjectively by their appearance on the oscilloscope screen and by their sound on the audio monitor. Techniques have been developed to automate IP analysis with and without force monitoring. These techniques give objective information, quantitate the degree of abnormality, and permit electromyographers-in-training to compare their subjective analysis of the IP with more objective findings.

Full Text

Duke Authors

Cited Authors

  • Sanders, DB; Stålberg, EV; Nandedkar, SD

Published Date

  • September 1996

Published In

Volume / Issue

  • 13 / 5

Start / End Page

  • 385 - 400

PubMed ID

  • 8897205

International Standard Serial Number (ISSN)

  • 0736-0258

Digital Object Identifier (DOI)

  • 10.1097/00004691-199609000-00003


  • eng

Conference Location

  • United States