Cargando…

Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach

This study investigated the cross-sectional and longitudinal associations of the substitution of non-school time light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), and sedentary time (ST) with adiposity in boys and girls. Boys (n = 65, baseline Mage= 9.93 ± 0.86 years) and...

Descripción completa

Detalles Bibliográficos
Autores principales: McAlister, Kelsey L., Zink, Jennifer, Chu, Daniel, Belcher, Britni R., Dunton, Genevieve F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125309/
https://www.ncbi.nlm.nih.gov/pubmed/33925751
http://dx.doi.org/10.3390/ijerph18094671
_version_ 1783693463211999232
author McAlister, Kelsey L.
Zink, Jennifer
Chu, Daniel
Belcher, Britni R.
Dunton, Genevieve F.
author_facet McAlister, Kelsey L.
Zink, Jennifer
Chu, Daniel
Belcher, Britni R.
Dunton, Genevieve F.
author_sort McAlister, Kelsey L.
collection PubMed
description This study investigated the cross-sectional and longitudinal associations of the substitution of non-school time light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), and sedentary time (ST) with adiposity in boys and girls. Boys (n = 65, baseline Mage= 9.93 ± 0.86 years) and girls (n = 77, baseline Mage = 10.17 ± 0.95 years) wore waist-worn accelerometers (ActiGraph GT3X) at baseline and at a 30-month follow-up, from which non-school time LPA, MVPA, ST, and total device wear were quantified. Body mass index (BMI) and waist-to-height-ratio (WHR) were measured at baseline and follow-up. Body fat percent (BF%) was obtained at follow-up only. Isotemporal substitution models assessed the cross-sectional and longitudinal associations of reallocating non-school time activity with BMI, WHR and BF%. In boys, replacing 30 min/day of LPA with MVPA was cross-sectionally (β = −8.26, p < 0.05) associated with a lower BF%. Replacing 30 min/day of ST with MVPA was cross-sectionally (β = −6.02, p < 0.05) associated with a lower BF% in boys. Longitudinally in boys, replacing 30 min of change in LPA with MVPA (β = −7.42, p < 0.10) and replacing 30 min of change in MVPA with ST (β = 5.78, p < 0.10) over 30 months was marginally associated with less BF%. Associations were null in girls (p > 0.05). These results may support targeting activity reallocation during non-school time for the purposes of adiposity improvement in boys. A multi-behavioral approach may be more appropriate for girls, as non-school time activity may not be driving adiposity status.
format Online
Article
Text
id pubmed-8125309
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-81253092021-05-17 Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach McAlister, Kelsey L. Zink, Jennifer Chu, Daniel Belcher, Britni R. Dunton, Genevieve F. Int J Environ Res Public Health Article This study investigated the cross-sectional and longitudinal associations of the substitution of non-school time light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), and sedentary time (ST) with adiposity in boys and girls. Boys (n = 65, baseline Mage= 9.93 ± 0.86 years) and girls (n = 77, baseline Mage = 10.17 ± 0.95 years) wore waist-worn accelerometers (ActiGraph GT3X) at baseline and at a 30-month follow-up, from which non-school time LPA, MVPA, ST, and total device wear were quantified. Body mass index (BMI) and waist-to-height-ratio (WHR) were measured at baseline and follow-up. Body fat percent (BF%) was obtained at follow-up only. Isotemporal substitution models assessed the cross-sectional and longitudinal associations of reallocating non-school time activity with BMI, WHR and BF%. In boys, replacing 30 min/day of LPA with MVPA was cross-sectionally (β = −8.26, p < 0.05) associated with a lower BF%. Replacing 30 min/day of ST with MVPA was cross-sectionally (β = −6.02, p < 0.05) associated with a lower BF% in boys. Longitudinally in boys, replacing 30 min of change in LPA with MVPA (β = −7.42, p < 0.10) and replacing 30 min of change in MVPA with ST (β = 5.78, p < 0.10) over 30 months was marginally associated with less BF%. Associations were null in girls (p > 0.05). These results may support targeting activity reallocation during non-school time for the purposes of adiposity improvement in boys. A multi-behavioral approach may be more appropriate for girls, as non-school time activity may not be driving adiposity status. MDPI 2021-04-27 /pmc/articles/PMC8125309/ /pubmed/33925751 http://dx.doi.org/10.3390/ijerph18094671 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
McAlister, Kelsey L.
Zink, Jennifer
Chu, Daniel
Belcher, Britni R.
Dunton, Genevieve F.
Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title_full Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title_fullStr Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title_full_unstemmed Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title_short Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach
title_sort cross-sectional and longitudinal associations between non-school time physical activity, sedentary time, and adiposity among boys and girls: an isotemporal substitution approach
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125309/
https://www.ncbi.nlm.nih.gov/pubmed/33925751
http://dx.doi.org/10.3390/ijerph18094671
work_keys_str_mv AT mcalisterkelseyl crosssectionalandlongitudinalassociationsbetweennonschooltimephysicalactivitysedentarytimeandadiposityamongboysandgirlsanisotemporalsubstitutionapproach
AT zinkjennifer crosssectionalandlongitudinalassociationsbetweennonschooltimephysicalactivitysedentarytimeandadiposityamongboysandgirlsanisotemporalsubstitutionapproach
AT chudaniel crosssectionalandlongitudinalassociationsbetweennonschooltimephysicalactivitysedentarytimeandadiposityamongboysandgirlsanisotemporalsubstitutionapproach
AT belcherbritnir crosssectionalandlongitudinalassociationsbetweennonschooltimephysicalactivitysedentarytimeandadiposityamongboysandgirlsanisotemporalsubstitutionapproach
AT duntongenevievef crosssectionalandlongitudinalassociationsbetweennonschooltimephysicalactivitysedentarytimeandadiposityamongboysandgirlsanisotemporalsubstitutionapproach