Shift of the Muscular Inhibition Latency during On-Line Acquisition of Anticipatory Postural Adjustments.

ABSTRACT: During action, Anticipatory Postural Adjustments (APAs) cancel the consequences of a movement on postural stabilization. Their muscular expression is characterized by early changes in the activity of the postural muscles, before the movement begins. To explore the mechanisms enabling the acquisition of APAs, a learning paradigm was designed in which the voluntary lifting of a load with one hand triggered the unloading of another load suspended below the contralateral forearm. The aim of this study was to investigate changes in the muscular expression that uncovers the progressive learning of new APAs. A trial-by-trial analysis of kinematic and electromyographic signals recorded on the right arm was conducted in twelve adults through six sessions of learning. Kinematic results reported an e

SUBMITTER: Barlaam F 

PROVIDER: S-EPMC4871431 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature