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    Correlations of clinical and laboratory measures of balance in older men and women: The MOBILIZE boston study

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    Authors
    Nguyen, Uyen-Sa D. T.
    Kiel, Douglas P.
    Li, Wenjun
    Galica, Andrew M.
    Kang, Hyun Gu
    Casey, Virginia A.
    Hannan, Marian T.
    UMass Chan Affiliations
    Department of Medicine, Division of Preventive and Behavioral Medicine
    Document Type
    Journal Article
    Publication Date
    2012-06-28
    Keywords
    Postural Balance
    Behavioral Disciplines and Activities
    Behavior and Behavior Mechanisms
    Community Health and Preventive Medicine
    Geriatrics
    Preventive Medicine
    
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    http://onlinelibrary.wiley.com/doi/10.1002/acr.21783/abstract
    Abstract
    OBJECTIVE: Impaired balance is associated with falls in older adults. However, there is no accepted gold standard on how balance should be measured. Few studies have examined measures of postural sway and clinical balance concurrently in large samples of community-dwelling older adults. We examined the associations among four types of measures of laboratory- and clinic-based balance in a large population-based cohort of older adults. METHODS: We evaluated balance measures in the MOBILIZE Boston Study (276 men, 489 women, 64-97 years). Measures included: (1) laboratory-based anteroposterior (AP) path length and average sway speed, mediolateral (ML) average sway and root-mean-square, and area of ellipse postural sway; (2) Short Physical Performance Battery (SPPB); (3) Berg Balance Scale; and (4) one-leg stand. Spearman Rank Correlation Coefficients (r) were assessed among the balance measures. RESULTS: Area of ellipse sway was highly correlated with the ML sway measures (r >0.9, p < 0.0001), and sway speed was highly correlated with AP sway (r=0.97, p < 0.0001). The Berg Balance Scale was highly correlated with SPPB (r=0.7, p<0.001), and one-leg stand (r=0.8, p<0.001). Correlations between the laboratory- and clinic-based balance measures were low but statistically significant (0.2 < r < 0.3, p<0.0001). CONCLUSION: Clinic-based balance measures, and laboratory-based measures comparing area of ellipse with ML sways or sway speed with AP sway, are highly correlated. Clinic- with laboratory-based measures are less correlated. As both laboratory- and clinic-based measures inform balance in older adults but are not highly correlated with each other, future work should investigate the differences. (c) 2012 by the American College of Rheumatology.
    Source
    Arthritis Care Res (Hoboken). 2012 Jun 28. doi: 10.1002/acr.21783. Link to article on publisher's site
    DOI
    10.1002/acr.21783
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/44826
    PubMed ID
    22745045
    Related Resources
    Link to Article in PubMed
    ae974a485f413a2113503eed53cd6c53
    10.1002/acr.21783
    Scopus Count
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    Population and Quantitative Health Sciences Publications

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