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Are all MVPA minutes equal? Associations between MVPA characteristics, independent of duration, and childhood adiposity

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dc.contributor.authorMiatke, A.
dc.contributor.authorMaher, C.
dc.contributor.authorFraysse, F.
dc.contributor.authorDumuid, D.
dc.contributor.authorOlds, T.
dc.date.issued2021
dc.description.abstractBackground: The inverse relationship between moderate-to-vigorous physical activity (MVPA) duration and childhood adiposity is well established. Less is known about how characteristics of MVPA accumulation may be associated with adiposity, independent of MVPA duration. This study aimed to investigate how the MVPA characteristics of children, other than duration (bout length, time of day, day-to-day consistency, intensity), were associated with adiposity. Methods: Cross-sectional study of the Australian arm of the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) (participants: n = 424, age range 9–11, 44% male). Adiposity was determined by percent body fat via bioelectrical impedance. MVPA duration and characteristics (bout length, time of day, consistency, intensity) were derived from 7-day, 24-h accelerometry. Generalised estimating equations were used to examine the individual and multivariate associations between MVPA characteristics and adiposity. Results: Univariate analyses showed that higher MVPA duration (β range = − 0.26,-0.15), longer bouts of MVPA (β range = 0.15,0.22) and higher MVPA intensity (β range = − 0.20,-0.13) were all inversely associated with adiposity (all p < 0.05). When models were adjusted for MVPA duration, only MVPA intensity (β range = − 0.16,-0.04) showed consistent significant associations with adiposity. Conclusions: Characteristics of MVPA other than duration and intensity appear to be unrelated to adiposity.
dc.identifier.citationBMC Public Health, 2021; 21(1, article no. 1321):1-9
dc.identifier.doi10.1186/s12889-021-11420-5
dc.identifier.issn1471-2458
dc.identifier.issn1471-2458
dc.identifier.orcidMaher, C. [0000-0002-8676-0224]
dc.identifier.urihttps://hdl.handle.net/11541.2/26112
dc.language.isoen
dc.publisherBioMed Central
dc.rightsCopyright 2021 The author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. (http://creativecommons.org/licenses/by/4.0/)
dc.source.urihttps://doi.org/10.1186/s12889-021-11420-5
dc.subjectaccelerometry
dc.subjectlifestyle
dc.subjectMVPA
dc.subjectobesity
dc.subjectoverweight
dc.titleAre all MVPA minutes equal? Associations between MVPA characteristics, independent of duration, and childhood adiposity
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12235772370001831 13235772360001831 s12889-021-11420-5
ror.mmsid9916546018201831

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