Assistive Loading Promotes Goal-Directed Tuning of Stretch Reflex Gains.

ABSTRACT: Voluntary movements are prepared before they are executed. Preparatory activity has been observed across the CNS and recently documented in first-order neurons of the human PNS (i.e., in muscle spindles). Changes seen in sensory organs suggest that independent modulation of stretch reflex gains may represent an important component of movement preparation. The aim of the current study was to further investigate the preparatory modulation of short-latency stretch reflex responses (SLRs) and long-latency stretch reflex responses (LLRs) of the dominant upper limb of human subjects. Specifically, we investigated how different target parameters (target distance and direction) affect the preparatory tuning of stretch reflex gains in the context of goal-directed reaching, and whether any such tuni

SUBMITTER: Torell F 

PROVIDER: S-EPMC9972504 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature