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Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups

Tailored obesity management includes understanding physical activity (PA) and its context, ideally in childhood before the onset of health risk. This cross-sectional study determined, by sex and population, the PA of Southern African pre-adolescent urban primary school children. PA was measured obje...

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Autores principales: Pretorius, Adeline, Wood, Paola, Becker, Piet, Wenhold, Friede
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9408511/
https://www.ncbi.nlm.nih.gov/pubmed/36011543
http://dx.doi.org/10.3390/ijerph19169912
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author Pretorius, Adeline
Wood, Paola
Becker, Piet
Wenhold, Friede
author_facet Pretorius, Adeline
Wood, Paola
Becker, Piet
Wenhold, Friede
author_sort Pretorius, Adeline
collection PubMed
description Tailored obesity management includes understanding physical activity (PA) and its context, ideally in childhood before the onset of health risk. This cross-sectional study determined, by sex and population, the PA of Southern African pre-adolescent urban primary school children. PA was measured objectively (step count: pedometer) and subjectively (Physical Activity Questionnaire for Older Children [PAQ-C]), taking confounders (phenotype, school-built environment, and socio-economic environment) into account. Body composition was measured with multifrequency bioelectrical impedance analysis (Seca mBCA). PA was adjusted for phenotypic confounders (body size and composition) using multivariate regression. Sex and population differences in PA were determined with two-way ANOVA. Ninety-four healthy pre-adolescents (60% girls, 52% black) with a similar socio-economic status and access to PA participated. Amidst phenotypic differences, average steps/day in girls (10,212) was lower than in boys (11,433) (p = 0.029), and lower in black (9280) than in white (12,258) (p < 0.001) participants. PAQ-C scores (5-point rating) were lower for girls (2.63) than boys (2.92) (p < 0.001) but higher for black (2.89) than white (2.58) (p < 0.001) participants. Objective and subjective measurements were, however, not significantly (r = −0.02; p = 0.876) related and PAQ-C failed to identify reactive changes in the step count. Objectively measured PA of black participants and of girls was consistently lower than for white participants and boys. Target-group specific interventions should therefore be considered.
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spelling pubmed-94085112022-08-26 Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups Pretorius, Adeline Wood, Paola Becker, Piet Wenhold, Friede Int J Environ Res Public Health Article Tailored obesity management includes understanding physical activity (PA) and its context, ideally in childhood before the onset of health risk. This cross-sectional study determined, by sex and population, the PA of Southern African pre-adolescent urban primary school children. PA was measured objectively (step count: pedometer) and subjectively (Physical Activity Questionnaire for Older Children [PAQ-C]), taking confounders (phenotype, school-built environment, and socio-economic environment) into account. Body composition was measured with multifrequency bioelectrical impedance analysis (Seca mBCA). PA was adjusted for phenotypic confounders (body size and composition) using multivariate regression. Sex and population differences in PA were determined with two-way ANOVA. Ninety-four healthy pre-adolescents (60% girls, 52% black) with a similar socio-economic status and access to PA participated. Amidst phenotypic differences, average steps/day in girls (10,212) was lower than in boys (11,433) (p = 0.029), and lower in black (9280) than in white (12,258) (p < 0.001) participants. PAQ-C scores (5-point rating) were lower for girls (2.63) than boys (2.92) (p < 0.001) but higher for black (2.89) than white (2.58) (p < 0.001) participants. Objective and subjective measurements were, however, not significantly (r = −0.02; p = 0.876) related and PAQ-C failed to identify reactive changes in the step count. Objectively measured PA of black participants and of girls was consistently lower than for white participants and boys. Target-group specific interventions should therefore be considered. MDPI 2022-08-11 /pmc/articles/PMC9408511/ /pubmed/36011543 http://dx.doi.org/10.3390/ijerph19169912 Text en © 2022 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
Pretorius, Adeline
Wood, Paola
Becker, Piet
Wenhold, Friede
Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title_full Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title_fullStr Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title_full_unstemmed Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title_short Physical Activity and Related Factors in Pre-Adolescent Southern African Children of Diverse Population Groups
title_sort physical activity and related factors in pre-adolescent southern african children of diverse population groups
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9408511/
https://www.ncbi.nlm.nih.gov/pubmed/36011543
http://dx.doi.org/10.3390/ijerph19169912
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