Document Detail


Precision in isometric precision grip force is reduced in middle-aged adults.
MedLine Citation:
PMID:  18953529     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We investigated age related changes in the control of precision grip in 29 healthy adults spanning early adulthood to middle age (21-67 years). Subjects performed a visually guided, isometric precision grip ramp-and-hold force-tracking task. Target force levels were 3, 6, and 9 N. Precision and performance of force regulation was quantified. Larger errors were made during the ramp than during the hold phase. Age correlated positively with the amount of error at the lowest (3 N) force level in both phases. Force onsets were systematically earlier in middle-aged subjects and the average slope of the force during the ramp decreased with increasing age. The results show that precision during low grip force control decreases already during middle age and those subjects may modify their force generation strategies to compensate for early and subtle degenerative changes in the motor system before decline in grip strength is apparent.
Authors:
Påvel Lindberg; Chrystele Ody; Antoine Feydy; Marc A Maier
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-10-25
Journal Detail:
Title:  Experimental brain research     Volume:  193     ISSN:  1432-1106     ISO Abbreviation:  Exp Brain Res     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-02-09     Completed Date:  2009-04-08     Revised Date:  2013-12-13    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  213-24     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aging*
Analysis of Variance
Female
Hand Strength*
Humans
Male
Middle Aged
Psychomotor Performance*
Young Adult

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


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