Work

Discharge characteristics of motor units in FDI vary with load compliance but comprise a single neural module during submaximal isometric contractions

Year: 2025

Type: article

Abstract: Although load compliance influences the discharge characteristics of the same motor units in first dorsal interosseus (FDI) during submaximal isometric contractions, most of the variance in discharge rate across conditions is explained by a single neural module (motor unit mode). Moreover, the first motor unit mode for the tracked motor units was more correlated with fluctuations in force (force task) or acceleration (position task) than was the cumulative spike train.

Source: Journal of Neurophysiology

DOI: 10.1152/jn.00417.2025

Authors: Logan E. Weinman, Kelsey Koger, Nicholas Toninelli, Mélanie Henry, Roger M. Enoka

Institution: University of Colorado Boulder

Language: English

Topic: Muscle activation and electromyography studies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: hybrid

Funder: National Multiple Sclerosis Society