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, Søren; Reilly, John J.; Peoples, Gregory E.; Jones, Rachel; Janssen, Xanne; Cliff, Dylan P.
Journal article, Peer reviewed
Permanent lenke
http://hdl.handle.net/11250/2452252Utgivelsesdato
2016-06Metadata
Vis full innførselSamlinger
- Artikler / Articles [2120]
Sammendrag
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
Beskrivelse
I Brage finner du siste tekst-versjon av artikkelen, og den kan inneholde ubetydelige forskjeller fra forlagets pdf-versjon. Forlagets pdf-versjon finner du på journals.humankinetics.com / In Brage you'll find the final text version of the article, and it may contain insignificant differences from the journal's pdf version. The definitive version is available at journals.humankinetics.com