Document Detail

Influence of 'strategy' on muscle activity during ballistic movements.
MedLine Citation:
PMID:  7470903     Owner:  NLM     Status:  MEDLINE    
Human subjects were asked to grasp the handle of a manipulandum and to track a visual target with ballistic flexion or extension movements of the wrist. Prior to each trial subjects were given verbal instructions in order to influence their movement strategy. A burst of EMG activity was recorded from extensor carpi radialis (ECR) when subjects intended to terminate ballistic flexion movements within the target (antagonist burst). The antagonist burst in ECR was reduced or abolished during ballistic flexion movements when subjects intended to bang the manipulandum handle against a mechanical stop. Thus, our major observation is that antagonist muscle activity during ballistic movements is controlled by a subject's movement strategy.
P Waters; P L Strick
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Brain research     Volume:  207     ISSN:  0006-8993     ISO Abbreviation:  Brain Res.     Publication Date:  1981 Feb 
Date Detail:
Created Date:  1981-05-28     Completed Date:  1981-05-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0045503     Medline TA:  Brain Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  189-94     Citation Subset:  IM; S    
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MeSH Terms
Evoked Potentials
Motor Neurons / physiology
Motor Skills / physiology*
Muscle Contraction
Muscles / innervation*
Visual Perception / physiology*

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