A.C. Routen
Discrepancies in accelerometer-measured physical activity in children due to cut-point non-equivalence and placement site
Routen, A.C.; Upton, D.; Edwards, M.G.; Peters, D.M.
Authors
D. Upton
M.G. Edwards
D.M. Peters
Abstract
This study examined dissonance in physical activity (PA) between two youth-specific hip-derived intensity cut-points for the Actiwatch (AW), and compared PA between hip and wrist placements using site-specific cut-points. Twenty-four children aged 11.2 ± 0.5 years wore the AW on the right hip and non-dominant wrist during a typical school day. Minutes of sedentary behaviour and vigorous activity were greater using Puyau et al. (2002) cut-points, but light, moderate, and moderate-to-vigorous (MVPA) were greater when derived using Puyau et al. (2004) cut-points (P < 0.01). Total hip activity counts were lower than wrist. Sedentary minutes were greater at the hip, but minutes of light, vigorous and MVPA were lower (P < 0.01). Moderate minutes were greater at the hip, but differed only when applying the Puyau et al. (2004) cut-points (P < 0.01). In conclusion, data comparisons between two hip derived AW cut-points and between hip and wrist data are inappropriate. Future researchers using the AW at the hip should present data reduced using both published cut-points. As hip and wrist data differ, the wrist placement is preferable as it will likely increase children's compliance to monitoring protocols due to reduced obtrusiveness compared to the hip.
Citation
Routen, A., Upton, D., Edwards, M., & Peters, D. (2012). Discrepancies in accelerometer-measured physical activity in children due to cut-point non-equivalence and placement site. Journal of Sports Sciences, 30(12), 1303-1310. https://doi.org/10.1080/02640414.2012.709266
Journal Article Type | Article |
---|---|
Publication Date | Aug 1, 2012 |
Deposit Date | Feb 8, 2013 |
Publicly Available Date | Feb 4, 2014 |
Journal | Journal of Sports Sciences |
Print ISSN | 0264-0414 |
Electronic ISSN | 1466-447X |
Publisher | Taylor and Francis Group |
Peer Reviewed | Peer Reviewed |
Volume | 30 |
Issue | 12 |
Pages | 1303-1310 |
DOI | https://doi.org/10.1080/02640414.2012.709266 |
Keywords | Body site, Motion sensor, Intensity thresholds, Participant compliance, Actiwatch. |
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Copyright Statement
This is an electronic version of an article published in [include the complete citation information for the final version of the article as published in the print edition of the journal]. Journal of sports sciences is available online at: http://www.tandfonline.com/openurl?genre=article&issn=0264-0414&volume=30&issue=12&spage=1303
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