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

Journal Article


Abstract


  • 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.

Publication Date


  • 2016

Citation


  • van Loo, C. M. T., Okely, A. D., Batterham, M., Hinkley, T., Ekelund, U., Brage, S., Reilly, J. J., Peoples, G. E., Jones, R., Janssen, X. & Cliff, D. P. (2016). Predictive validity of a thigh-worn accelerometer METs algorithm in 5-to 12-year-old children. Journal of Physical Activity and Health, 13 (6, Supplement 1), S78-S83.

Scopus Eid


  • 2-s2.0-84999749769

Ro Metadata Url


  • http://ro.uow.edu.au/ihmri/1021

Has Global Citation Frequency


Start Page


  • S78

End Page


  • S83

Volume


  • 13

Issue


  • 6, Supplement 1

Place Of Publication


  • United States

Abstract


  • 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.

Publication Date


  • 2016

Citation


  • van Loo, C. M. T., Okely, A. D., Batterham, M., Hinkley, T., Ekelund, U., Brage, S., Reilly, J. J., Peoples, G. E., Jones, R., Janssen, X. & Cliff, D. P. (2016). Predictive validity of a thigh-worn accelerometer METs algorithm in 5-to 12-year-old children. Journal of Physical Activity and Health, 13 (6, Supplement 1), S78-S83.

Scopus Eid


  • 2-s2.0-84999749769

Ro Metadata Url


  • http://ro.uow.edu.au/ihmri/1021

Has Global Citation Frequency


Start Page


  • S78

End Page


  • S83

Volume


  • 13

Issue


  • 6, Supplement 1

Place Of Publication


  • United States