Document Detail

Measuring methods for functional reach test: comparison of 1-arm reach and 2-arm reach.
MedLine Citation:
PMID:  19969175     Owner:  NLM     Status:  MEDLINE    
Kage H, Okuda M, Nakamura I, Kunitsugu I, Sugiyama S, Hobara T. Measuring methods for functional reach test: comparison of 1-arm reach and 2-arm reach. OBJECTIVES: To investigate which functional reach test better reflects the center of pressure excursion, a 1-arm reach or a 2-arm reach, and to investigate the effect of trunk rotation on the reach distance in a 1-arm reach. In addition, we considered the influence of the individual variation at the starting position. DESIGN: Descriptive study using a force platform and a 3-dimensional (3D) motion capture system. SETTING: Motion analysis laboratory in a college setting. PARTICIPANTS: Elderly volunteers (N=41; 15 men, 26 women; 71.8+/-5.2y). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: 3D coordinate data and the movement of the center of pressure. RESULTS: The correlation between the reach distance and the center of pressure excursion was significantly higher (P<.05) for the 1-arm reach (r=.60, .72) compared with a 2-arm reach (r=.41, .55). In the case of the 1-arm reach, center of pressure excursion was a significant factor affecting reach distance (beta=.319, .470) in multivariate regression analysis, but trunk rotation was not (beta=.162, .095). When the reach distance was measured using the heel as a reference, the correlation was stronger. CONCLUSIONS: To evaluate dynamic balance, a 1-arm reach, which better reflects center of pressure excursion, is more valid. It is meaningful to reduce the individual variation of the acromion at the starting position.
Haruko Kage; Masayuki Okuda; Ippei Nakamura; Ichiro Kunitsugu; Shinichi Sugiyama; Tatsuya Hobara
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  90     ISSN:  1532-821X     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-08     Completed Date:  2010-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2103-7     Citation Subset:  AIM; IM    
Department of Physical Therapy, YIC Rehabilitation College, Ube, Japan.
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MeSH Terms
Aged, 80 and over
Movement / physiology*
Postural Balance / physiology*
Upper Extremity / physiology*

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