Document Detail


Voluntary control of agonist premotor silence preceding limb movements of maximal effort.
MedLine Citation:
PMID:  2608395     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The ability to gain voluntary control over agonist premotor silence through electromyographic (EMG) feedback was examined in healthy subjects performing maximal horizontal elbow flexions. Subjects exhibiting premotor silence on at least 50% of the pretest trials showed significantly greater peak angular velocity than subjects who produced the silent period on fewer than 20% of the trials during the pretest. The latter subjects acquired control of agonist premotor silence with practice and graphic feedback regarding their EMG patterns. The subjects who were the most successful in learning to produce the silent period increased their angular velocity to the level of the subjects who naturally exhibited the inhibition. The less successful subjects showed smaller increases in velocity. The data provide further evidence that premotor silence is primarily under central influence, that its control can be acquired, and that it may be functionally related to contractile rate.
Authors:
C B Walter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  69     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1989 Dec 
Date Detail:
Created Date:  1990-02-15     Completed Date:  1990-02-15     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  819-26     Citation Subset:  IM; S    
Affiliation:
Department of Physical Education, University of Illinois, Chicago 60680.
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MeSH Terms
Descriptor/Qualifier:
Adult
Biofeedback, Psychology / physiology*
Elbow
Electromyography*
Evoked Potentials / physiology
Humans
Male
Muscle Contraction / physiology*
Muscles / physiology
Physical Exertion / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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