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    Wear compliance, sedentary behaviour and activity in freeliving children from hip-and wrist-mounted ActiGraph GT3X+ accelerometer

    Date
    2018-10
    Author
    McLellan, Gillian
    Buchan, Duncan
    Arthur, Rosie
    Metadata
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    Citation
    McLellan, G., Buchan, D. and Arthur, R. (2018) 'Wear compliance, sedentary behaviour and activity in freeliving children from hip-and wrist-mounted ActiGraph GT3X+ accelerometers' (from 7th International Society for Physical Activity and Health Congress, London, 15-17 October), Journal of Physical Activity and Health. 15(s1), pp. S218-219.
    Abstract
    This study examined the compliance of children wearing wrist- and hipmounted ActiGraph GT3X+ accelerometers and compared estimates of sedentary behaviour (SB) and physical activity (PA). One hundred and eighty-eight 9-12-year-old children wore a wrist- and hip-mounted accelerometer for 7 days. Data were available for 160 (hip) and 161 (wrist) participants. Compliance was analysed using 9 different wear-time criteria. Output comparisons were compared against one weartime criteria (any 4 days at 10-hours per day). Time spent in SB and PA was calculated using R-package GGIR. Wear-time for the wrist (15.6 to 17.4 h.d−1 ) was significantly greater than the hip (15.2 to 16.8 h.d−1 ) across all wear-time criteria (all P < 0.05). Moderate-strong associations were found between time spent in SB (r = 0.39), LPA (r = 0.33), MPA (r = 0.99), VPA (r = 0.82) and MVPA (r = 0.81) between the two device placements (All P < 0.001). The wrist device detected more minutes in LPA, MPA, VPA and MVPA whereas the hip detected more minutes in SB (all P = 0.001). Estimates of time in SB and all activity outcomes from the wrist and hip lacked equivalence. The GT3X+ when worn at the wrist promotes greater compliance than at the hip. Minutes in SB and PA calculated from raw accelerations at the hip and wrist provide contrasting estimates and cannot be directly compared. Further calibration and correction factors may facilitate the comparison of findings in studies that estimate time spent in SB and PA intensities captured from the wrist and hip.
    Official URL
    https://doi.org/10.1123/jpah.2018-0535
    URI
    https://eresearch.qmu.ac.uk/handle/20.500.12289/12170
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    • Psychology, Sociology and Education

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