The modulation of human motoneuron discharge patterns with contraction force in resistance- and endurance-trained individuals

Journal of Applied Physiology 2026 Open access

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Authors: Jakob Škarabot, H. Thomason, Benjamin M. Nazaroff, Christopher D. Connelly, Tamara Valenčič, Michael L. Ho, Kapil Dev Tyagi, James A. Beauchamp, Gregory E. P. Pearcey
DOI: 10.1152/japplphysiol.00835.2025
Cited by: 1
References: 71

Abstract

Physical training alters intrinsic motoneuron properties in reduced animal preparations, especially in neurons recruited at high excitation levels. Here, we show that individuals with a history of resistance or endurance training exhibit higher discharge rates that are more linear during forceful contractions. This likely reflects a more reciprocal/push-pull excitation-inhibition coupling, leading to greater net excitation to the motor pool that may contribute to greater force production observed in trained individuals.

Fields of Study & Subjects

Muscle activation and electromyography studies Transcranial Magnetic Stimulation Studies Motor Control and Adaptation

Publication details

Journal / source
Journal of Applied Physiology
Publisher
American Physiological Society
Volume
140
Issue
2
Pages
540–557
Publication date
14 January 2026
Language
EN