Agreement and equivalence of estimated physical activity behaviours, using ENMO- and counts-based processing methods, for wrist-worn accelerometers in adolescents

Williams, R.A. ORCID: 0000-0002-1346-7756, Dring, K.J. ORCID: 0000-0002-9647-3579, Morris, J.G. ORCID: 0000-0001-6508-7897, Sun, F.-H. and Cooper, S.B. ORCID: 0000-0001-5219-5020, 2023. Agreement and equivalence of estimated physical activity behaviours, using ENMO- and counts-based processing methods, for wrist-worn accelerometers in adolescents. Journal of Sports Sciences. ISSN 0264-0414

Full text not available from this repository.

Abstract

The present study examined the agreement and equivalence between two physical activity processing methods. Data were obtained from 161 Hong-Kong adolescents (74 girls, age: 12.6 ± 1.7y). Participants wore an Actigraph GT3XBT on their non-dominant wrist for 7d. Time spent sedentary, and in light-(LPA), moderate-(MPA), vigorous-(VPA), and moderate-to-vigorous physical activity (MVPA) were calculated using different processing methods (proprietary counts and Euclidean Norm Minus One (ENMO)). Intraclass correlation coefficients (ICC) were used to examine absolute agreement (ICC2) and consistency (ICC3), and equivalence was assessed using pairwise equivalence tests. Using ENMO, sedentary time and VPA were higher, whereas all other behaviours were lower (compared to counts processing). Agreement ranged from poor (ICC2:0.42(Sedentary)) to moderate (ICC2:0.86(LPA)) and consistency ranged from moderate (ICC3:0.71(sedentary)) to good (ICC3:0.91(LPA)). Methods were not considered equivalent (all p > 0.05). Due to differences in the wear-time validation of processing methods, a sensitivity analyses (sub-sample with the same valid wear time for both methods (n = 56)), resulted in minimal change. Lack of agreement and equivalence between ENMO and counts processing methods suggests that the processing method significantly affects youth physical activity estimates.

Item Type:	Journal article
Publication Title:	Journal of Sports Sciences
Creators:	Williams, R.A., Dring, K.J., Morris, J.G., Sun, F.-H. and Cooper, S.B.
Publisher:	Routledge
Date:	13 January 2023
ISSN:	0264-0414
Identifiers:	Number Type 10.1080/02640414.2023.2167254 DOI 1635289 Other
Rights:	© 2023 the author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	23 Jan 2023 09:16
Last Modified:	23 Jan 2023 09:19
URI:	https://irep.ntu.ac.uk/id/eprint/48028

Actions (login required)

Edit View

Views

Downloads