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The relationships among gait and mobility under single and dual task conditions in community-dwelling older adults.
MedLine Citation:
PMID:  20859069     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
AIMS: The purpose of this study was to examine relationships among gait and mobility under single and dual task conditions in older adults.
METHODS: Community-dwelling older adults (n=41, mean age=75) completed mobility and gait tasks. Mobility was assessed with the Timed-Up-and-Go (TUG). Select gait parameters were examined while individuals walked at their preferred speed across the GAITRite electronic walkway. Two age groups were studied (younger age group=65-75; older age group=76+). Multiple linear regression analyses were used to examine the relationship between gait and mobility under single vs dual conditions.
RESULTS: Older adults required more time to complete the TUG when concurrently performing a second cognitive task (10.84 sec vs 15.77 sec). In addition, one or more gait characteristic such as stride length, cadence and stance explained (a) a high percentage of variance in mobility performance under single task conditions (TUG 74%) and (b) a smaller portion of variance in mobility performance under dual task conditions (TUGc 25%). No salient age group differences were observed in TUG performance, but gait characteristics accounted for a larger portion of variance in TUGc performance (46%) for the older age group (mean age=81) than for the younger age group (mean age=69; TUGc 18%).
Authors:
Gerhild Ullmann; Harriet G Williams
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Publication Detail:
Type:  Journal Article     Date:  2010-09-21
Journal Detail:
Title:  Aging clinical and experimental research     Volume:  23     ISSN:  1594-0667     ISO Abbreviation:  Aging Clin Exp Res     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2012-04-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101132995     Medline TA:  Aging Clin Exp Res     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  400-5     Citation Subset:  IM    
Affiliation:
Department of Exercise Science, University of South Carolina, 1300 Wheat Street, Columbia, SC 29208, USA. ullmann@sc.edu.
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