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    Cross validation of actigraph derived accelerometer cut‐points for assessment of sedentary behaviour and physical activity in children aged 8‐11 years

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    Authors
    Duncan, Michael J. cc
    Eyre, Emma L.J.
    Cox, Val
    Roscoe, Clare M.P.
    Faghy, Mark cc
    Tallis, Jason
    Dobell, Alexandra
    Affiliation
    Coventry University
    University of Derby
    Issue Date
    2020-01-27
    
    Metadata
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    Abstract
    To cross-validate previously calibrated Actigraph cut points in children. Twenty eight children (50%boys) aged between 8 and 11 years of age (9.4 ± 1.4 years) performed a series of 5 minute bouts of activity reflective of different levels of PA from sedentary behaviour (SB) to moderate to vigorous physical activity (MVPA); V˙ O2 was assessed using breath by breath indirect calorimetry and activity was assessed using Actigraph accelerometers worn on the hip and non-dominant wrist. The V˙ O2 values were then converted into age-specific METs (measured METs) and coded as SB, light PA and MVPA. Accelerometer data was analysed using previously calibrated cut-points at different epochs i.e. 5, 15 30 and 60 seconds. Receiver Operating Characteristic (ROC) curve analysis indicated that there was excellent discrimination of SB using the Evenson et al (15sec), Romanzini (15sec), Treuth et al (30sec), Freedson et al (60sec), Treuth et al (60sec) and Troiano et al (60sec) cut points. ROC analysis indicated poor discrimination for LPA irrespective of the cut-points used. Good discrimination of MVPA was evident for all existing cut-points using a 60sec epoch. There is considerable variation in the performance of existing cut-points for assessment of SB, LPA and MPA in children.
    Citation
    Duncan, M. J., Eyre, E. L. J., Cox, V., Roscoe, C. M. P., Faghy, M. A., Tallis, J. and Dobell, A. (2020). 'Cross validation of Actigraph derived accelerometer cut-points for assessment of sedentary behaviour and physical activity in children aged 8-11 years'. Acta Paediatrica, pp. 1-17. DOI: 10.1111/apa.15189.
    Publisher
    Wiley
    Journal
    Acta Paediatrica
    URI
    http://hdl.handle.net/10545/624494
    DOI
    10.1111/apa.15189
    Additional Links
    https://pureportal.coventry.ac.uk/en/publications/cross-validation-of-actigraph-derived-accelerometer-cut-points-fo
    https://onlinelibrary.wiley.com/doi/abs/10.1111/apa.15189
    Type
    Article
    Language
    en
    ISSN
    0803-5253
    1651-2227
    ae974a485f413a2113503eed53cd6c53
    10.1111/apa.15189
    Scopus Count
    Collections
    School of Human Sciences

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