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Predictive validity of a thigh-worn accelerometer METs algorithm in 5-to 12-year-old children

van Loo, Christiana M.T., Okely, Anthony D., Batterham, Marijka, Hinkley, Tina, Ekelund, Ulf, Brage, Soren, Reilly, John J., Peoples, Gregory E., Jones, Rachel, Janssen, Xanne and Cliff, Dylan P. 2016, Predictive validity of a thigh-worn accelerometer METs algorithm in 5-to 12-year-old children, Journal of physical activity and health, vol. 13, no. 6, Supplement 1, pp. S78-S83, doi: 10.1123/jpah.2015-0721.

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Title Predictive validity of a thigh-worn accelerometer METs algorithm in 5-to 12-year-old children
Author(s) van Loo, Christiana M.T.
Okely, Anthony D.
Batterham, Marijka
Hinkley, TinaORCID iD for Hinkley, Tina orcid.org/0000-0003-2742-8579
Ekelund, Ulf
Brage, Soren
Reilly, John J.
Peoples, Gregory E.
Jones, Rachel
Janssen, Xanne
Cliff, Dylan P.
Journal name Journal of physical activity and health
Volume number 13
Issue number 6, Supplement 1
Start page S78
End page S83
Total pages 6
Publisher Human Kinetics
Place of publication Champaign, Ill.
Publication date 2016-06
ISSN 1543-3080
1543-5474
Keyword(s) energy expenditure
physical activity
accelerometry
calorimetry
sedentary behavior
Summary Background: To validate the activPAL3 algorithm for predicting metabolic equivalents (TAMETs) and classifying MVPA in 5- to 12-year-old children.

Methods: Fifty-seven children (9.2 ± 2.3y, 49.1% boys) completed 14 activities including sedentary behaviors (SB), light (LPA) and moderate-to-vigorous physical activities (MVPA). Indirect calorimetry (IC) was used as the criterion measure. Analyses included equivalence testing, Bland-Altman procedures and area under the receiver operating curve (ROC-AUC).

Results: At the group level, TAMETs were significantly equivalent to IC for handheld e-game, writing/coloring, and standing class activity (P < .05). Overall, TAMETs were overestimated for SB (7.9 ± 6.7%) and LPA (1.9 ± 20.2%) and underestimated for MVPA (27.7 ± 26.6%); however, classification accuracy of MVPA was good (ROC-AUC = 0.86). Limits of agreement were wide for all activities, indicating large individual error (SB: -27.6% to 44.7%; LPA: -47.1% to 51.0%; MVPA: -88.8% to 33.9%).

Conclusions: TAMETs were accurate for some SB and standing, but were overestimated for overall SB and LPA, and underestimated for MVPA. Accuracy for classifying MVPA was, however, acceptable.
Language eng
DOI 10.1123/jpah.2015-0721
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
1106 Human Movement And Sports Science
1302 Curriculum And Pedagogy
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Human Kinetics
Persistent URL http://hdl.handle.net/10536/DRO/DU:30090526

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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