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    Sensitivity to Change of Objectively-Derived Measures of Sedentary Behavior

    Access Status
    Fulltext not available
    Authors
    Chastin, S.
    Winkler, E.
    Eakin, E.
    Gardiner, P.
    Dunstan, D.
    Owen, N.
    Healy, Genevieve
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Chastin, S. and Winkler, E. and Eakin, E. and Gardiner, P. and Dunstan, D. and Owen, N. and Healy, G. 2015. Sensitivity to Change of Objectively-Derived Measures of Sedentary Behavior. Measurement in Physical Education and Exercise Science. 19 (3): pp. 138-147.
    Source Title
    Measurement in Physical Education and Exercise Science
    DOI
    10.1080/1091367X.2015.1050592
    ISSN
    1091-367X
    School
    School of Physiotherapy and Exercise Science
    URI
    http://hdl.handle.net/20.500.11937/43878
    Collection
    • Curtin Research Publications
    Abstract

    The aim of this study was to examine the sensitivity to change of measures of sedentary behavior derived from body worn sensors in different intervention designs. Results from two intervention studies: Stand up for Your Health (pre-post home-based study with older adults not in paid employment) and Stand Up Comcare (non-randomized controlled trial in the workplace) were analyzed to quantify sensitivity to change of measures of total and accumulation of sedentary time obtained from hip-worn Actigraph and thigh-worn activPAL monitors. Sensitivity to change varied with intervention design and population considered. The activPAL was generally more sensitive but not consistently for all measures and designs. Measures of sedentary time accumulation, in particular half-life bout duration (W<inf>50%</inf>), were consistently more sensitive than total sedentary time. Measurement devices used in intervention studies need to be appropriately selected to be sensitive to changes in the behavioral target. For sedentary behavior interventions, measures of accumulation should be considered as outcomes.

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