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Autor/inn/en | Schmidt, Michael D.; Rathbun, Stephen L.; Chu, Zhixuan; Boudreaux, Benjamin D.; Hahn, Lindsay; Novotny, Eric; Johnsen, Kyle; Ahn, Sun Joo |
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Titel | Agreement between Fitbit and ActiGraph Estimates of Physical Activity in Young Children |
Quelle | In: Measurement in Physical Education and Exercise Science, 27 (2023) 2, S.171-180 (10 Seiten)
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Zusatzinformation | ORCID (Schmidt, Michael D.) ORCID (Rathbun, Stephen L.) ORCID (Hahn, Lindsay) |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 1091-367X |
DOI | 10.1080/1091367X.2022.2125319 |
Schlagwörter | Measurement Equipment; Physical Activity Level; Elementary School Students; After School Programs; Comparative Analysis; Measurement Techniques; Georgia (Atlanta) |
Abstract | Physical activity (PA) estimates from the Fitbit Flex 2 were compared to those from the ActiGraph GT9X Link in 123 elementary school children. Steps and intensity-specific estimates of PA and 3-month PA change were calculated using two different ActiGraph cut-points (Evenson and Romanzini). Fitbit estimates were 35% higher for steps compared to the ActiGraph. Fitbit and ActiGraph intensity-specific estimates were closest for sedentary and light PA, while estimates of moderate and vigorous PA varied substantially depending upon the ActiGraph cut-points used. Spearman correlations between device estimates were higher for steps (r[subscript s] = 0.70) than for moderate (r[subscript s] = 0.54 to 0.55) or vigorous (r[subscript s] = 0.29 to 0.48) PA. There was low concordance between devices in assessing PA changes over time. Agreement between Fitbit Flex 2 and ActiGraph estimates may depend upon the cut-points used to classify PA intensity. However, there is fair to good agreement between devices in ranking children's steps and MVPA. (As Provided). |
Anmerkungen | Routledge. Available from: Taylor & Francis, Ltd. 530 Walnut Street Suite 850, Philadelphia, PA 19106. Tel: 800-354-1420; Tel: 215-625-8900; Fax: 215-207-0050; Web site: http://www.tandf.co.uk/journals |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2024/1/01 |