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Noonan, RJ, Boddy, LM, Kim, Y, Knowles, ZR and Fairclough, SJ (2016) Comparison of children's free-living physical activity derived from wrist and hip raw accelerations during the segmented week. Journal of Sports Sciences. ISSN 1466-447X
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Noonan et al. 2016 Comparison of children’s free-living physical activity derived from wrist and hip raw accelerations during the segmented week.pdf - Accepted Version Download (381kB) | Preview |
Abstract
This study assessed children's physical activity (PA) levels derived from wrist-worn GENEActiv and hip-worn ActiGraph GT3X+ accelerometers and examined the comparability of PA levels between the two devices throughout the segmented week. One hundred and twenty-nine 9-10-year-old children (79 girls) wore a GENEActiv (GAwrist) and ActiGraph GT3X+ (AGhip) accelerometer on the left wrist and right hip, respectively, for 7 days. Mean minutes of light PA (LPA) and moderate-to-vigorous PA (MVPA) per weekday (whole-day, before-school, school and after-school) and weekend day (whole-day, morning and afternoon-evening) segments were calculated, and expressed as percentage of segment time. Repeated measures analysis of variance examined differences in LPA and MVPA between GAwrist and AGhip for each time segment. Bland-Altman plots assessed between-device agreement for LPA and MVPA for whole weekday and whole weekend day segments. Correlations between GAwrist and AGhip were weak for LPA (r = 0.18-0.28), but strong for MVPA (r = 0.80-0.86). LPA and MVPA levels during all weekday and weekend day segments were significantly higher for GAwrist than AGhip (p < 0.001). The largest inter-device percent difference of 26% was observed in LPA during the school day segment. Our data suggest that correction factors are needed to improve raw PA level comparability between GAwrist and AGhip.
| Item Type: | Article |
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| Additional Information: | This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 14/11/16, available online: http://www.tandfonline.com/10.1080/02640414.2016.1255347 |
| Uncontrolled Keywords: | 1106 Human Movement And Sports Science, 1302 Curriculum And Pedagogy |
| Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | Taylor & Francis |
| Related URLs: | |
| Date Deposited: | 24 Nov 2016 10:31 |
| Last Modified: | 04 Sep 2021 12:14 |
| DOI or ID number: | 10.1080/02640414.2016.1255347 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/4859 |
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