Document Detail

Associations among Strength, Steadiness, and Hand Function across the Adult Life Span.
MedLine Citation:
PMID:  20689447     Owner:  NLM     Status:  In-Data-Review    
INTRODUCTION: : Age-related differences in force steadiness have been extensively examined and used as an index of motor function. However, the functional relevance of steadiness remains unclear.
PURPOSE: : The aim here was to evaluate the relations among hand strength, steadiness, and function across the adult life span.
METHODS: : Seventy-five adults (45 women; 18-89 yr) performed three strength, two steadiness, and four functional tests with both hands. Strength was measured during index finger abduction, precision pinch, and handgrip, and steadiness was measured during index finger abduction and precision pinch. Functional tests included the Grooved Pegboard test, the game Operation, a scissor task, and a tracing task.
RESULTS: : Moderate correlations were observed between both steadiness tasks and performance on the Grooved Pegboard test (R = 0.57 and R = 0.46, respectively) and Operation (R = -0.47 and R = -0.57, respectively).
CONCLUSIONS: : The relation between measures of steadiness and hand function suggests that the physiological mechanisms responsible for differences in steadiness also contribute to differences in the performance of fine motor tasks with the hand.
Adam R Marmon; Michael A Pascoe; Robert S Schwartz; Roger M Enoka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  43     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  560-7     Citation Subset:  IM; S    
1Department of Physical Therapy, University of Delaware, Newark, DE; 2Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO; and 3Department of Medicine, University of Colorado at Denver, Denver, CO.
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