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    Calibration of GENEActiv accelerometer wrist cut-points for the assessment of physical activity intensity of preschool aged children

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    Authors
    Roscoe, Clare M. P. cc
    James, Rob S. cc
    Duncan, Michael J. cc
    Affiliation
    Coventry University
    University of Derby
    Issue Date
    2017-07-03
    
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    Abstract
    This study sought to validate cut-points for use of wrist worn GENEActiv accelerometer data, to analyse preschool children’s (4 to 5 year olds) physical activity (PA) levels via calibration with oxygen consumption values (VO2). This was a laboratory based calibration study. Twenty-one preschool children, aged 4.7 ± 0.5 years old, completed six activities (ranging from lying supine to running) whilst wearing the GENEActiv accelerometers at two locations (left and right wrist), these being the participants’ non-dominant and dominant wrist, and a Cortex face mask for gas analysis. VO2 data was used for the assessment of criterion validity. Location specific activity intensity cut points were established via Receiver Operator Characteristic curve (ROC) analysis. The GENEActiv accelerometers, irrespective of their location, accurately discriminated between all PA intensities (sedentary, light, and moderate and above), with the dominant wrist monitor providing a slightly more precise discrimination at light PA and the non-dominant at the sedentary behaviour and moderate and above intensity levels (Area Under the Curve (AUC) for non-dominant = 0.749-0.993, compared to AUC dominant = 0.760-0.988). Conclusion: This study establishes wrist-worn physical activity cut points for the GENEActiv accelerometer in pre-schoolers.
    Citation
    Roscoe, C. M. P. et al (2017) 'Calibration of GENEActiv accelerometer wrist cut-points for the assessment of physical activity intensity of preschool aged children' European Journal of Pediatrics, DOI: 10.1007/s00431-017-2948-2
    Publisher
    Springer
    Journal
    European Journal of Pediatrics
    URI
    http://hdl.handle.net/10545/621729
    DOI
    10.1007/s00431-017-2948-2
    Additional Links
    http://link.springer.com/10.1007/s00431-017-2948-2
    Type
    Article
    Language
    en
    ISSN
    03406199
    EISSN
    14321076
    ae974a485f413a2113503eed53cd6c53
    10.1007/s00431-017-2948-2
    Scopus Count
    Collections
    School of Human Sciences

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