Document Detail


The 'deceleration response' to transient perturbation of upright stance.
MedLine Citation:
PMID:  7970194     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Characterizing the postural perturbation due to a transient support-surface displacement in terms of acceleration and deceleration events leads to a new framework for understanding the control of the stabilizing response. This study documents the existence of a 'deceleration response', which has not been reported previously, and explores the control of this response by varying the predictability of the timing and pattern of support-surface deceleration. Control features related to the capacity of the subject to predict deceleration were exposed, in part, by including novel 'tri-phasic' perturbations, in which the normal deceleration phase was replaced by a re-acceleration. In all trials, subjects showed a marked response to the onset of deceleration. The capacity of predict the timing and pattern of deceleration had a significant influence on the 'deceleration response', as well as the 'tonic' muscle activation that preceded the onset of deceleration.
Authors:
W E McIlroy; B E Maki
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neuroscience letters     Volume:  175     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  1994 Jul 
Date Detail:
Created Date:  1994-12-29     Completed Date:  1994-12-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  13-6     Citation Subset:  IM; S    
Affiliation:
Sunnybrook Health Science Centre, University of Toronto, Ont., Canada.
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MeSH Terms
Descriptor/Qualifier:
Acceleration*
Adult
Deceleration
Electromyography
Female
Humans
Male
Muscles / physiology*
Posture / physiology*
Reference Values
Time Factors

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


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