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    Level of agreement between physical activity levels measured by ActiHeart and the International Physical Activity Questionnaire in persons with intellectual disability

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    Date
    2018
    Author
    Moss, Sarah J.
    Czyz, Stanislaw H.
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    Abstract
    Purpose: The purpose of this study was to determine the level of agreement between objective physical activity (PA) (ActiHeart®) and subjective proxy-respondent International Physical Activity Questionnaire-short version (IPAQ-S) data in adults with intellectual disabilities (IDs). Method: Fifty-eight participants wore ActiHeart® monitors for seven consecutive days. Caregivers of each participant completed the IPAQ-S on behalf of the participant. Total PA, time spent in light, moderate, and vigorous activity as well as time spent being sedentary were assessed by the IPAQ-S and the ActiHeart®. Results were compared by means of correlation analyses. The level of agreement was presented with Bland–Altman plots. Results: Objective PA (ActiHeart®) was higher (225.57 ± 91.96 min/week) than IPAQ-S PA reported by care-givers (177.06 ± 309.17 min/week). Weak significant correlations were observed between the ActiHeart® and IPAQ-S instruments for sedentary behavior (r = 0.31; p = 0.04); no significant correlations for light (r= −0.04; p = 0.8), moderate (r= −0.07; p = 0.63), or vigorous PA (r= −0.2; p = 0.18) were found. Limited agreement between objectively determine PA (ActiHeart®) and IPAQ-S was found. Conclusion: IPAQ-S is inaccurate when determining PA in persons with ID as it significantly underestimates the true levels of PA in this cohort
    URI
    http://hdl.handle.net/10394/26528
    https://doi.org/10.1080/09638288.2016.1258092
    https://www.tandfonline.com/doi/full/10.1080/09638288.2016.1258092
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