Differential behavior of distinct motoneuron pools that innervate the triceps surae
Joshua W. Cohen, Taian Vieira, Tanya D. Ivanova, S. Jayne Garland
Abstract
In this study, we demonstrate that the different subpopulations of motor units within the three muscles comprising the ankle plantarflexors behave differently during multidirectional leaning. Our results suggest that the central nervous system has the capability to control distinct subpopulations of motor units to meet the force requirements necessary for leaning. This may allow for a precise, efficient, and flexible control strategy for the maintenance of standing balance.
Topics & Concepts
NeuroscienceAnkleMotor controlBalance (ability)Differential (mechanical device)Computer scienceBiologyPhysical medicine and rehabilitationAnatomyPhysicsMedicineThermodynamicsMuscle activation and electromyography studiesBalance, Gait, and Falls PreventionMotor Control and Adaptation