Faculty Collaboration Database

Multi-motor unit action potential analysis (MMA). Muscle Nerve 1995 Oct;18(10):1155-66

Date

10/01/1995

Pubmed ID

7659110

DOI

10.1002/mus.880181012

Scopus ID

2-s2.0-0029093091 (requires institutional sign-in at Scopus site)   69 Citations

Abstract

We have developed an algorithm, called multi-motor unit action potential analysis (MMA), to aid quantification in routine needle EMG examination. In only 5-8 min, it was possible to extract, analyze, and validate 20 motor unit action potentials (MUAPs). In the biceps muscle of normal subjects, the MUAP measurements are compared with measurements using manual, triggered averaging, automatic decomposition, and other MMA algorithms described in the literature. The mean values of MUAP features by MMA fell between the extreme limits obtained from the amplitude-triggered method and the manual method described in the literature. In patients, the results are consistent with routine EMG and similar to those results described in the literature. Fast acquisition and analysis of MUAPs as well as interference pattern (IP) analysis make this technique useful to document EMG abnormalities in routine needle examination.

Author List

Nandedkar SD, Barkhaus PE, Charles A

Author

Paul E. Barkhaus MD Professor in the Neurology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Action Potentials
Algorithms
Arm
Data Interpretation, Statistical
Electromyography
Humans
Mathematics
Middle Aged
Motor Neurons
Muscle Contraction
Muscle Fibers, Skeletal
Muscles
Reproducibility of Results
Software