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Lifestyle Behaviors Associated With Body Fat Percent in 9- to 11-Year-Old Children

Swindell, N, Berridge, D, McNarry, MA, Mackintosh, KA, Boddy, LM, Fairclough, SJ and Stratton, G (2021) Lifestyle Behaviors Associated With Body Fat Percent in 9- to 11-Year-Old Children. Pediatric Exercise Science. ISSN 0899-8493

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Abstract

Purpose:To examine (1) associations between body fat percent (BF) and lifestyle behaviors in children aged 9–11 years and (2) the consistency of these associations over a 10-year period.
Methods: In this repeat, cross-sectional study, 15,977 children aged 9–11 years completed an anthropometric assessment and the SportsLinx Lifestyle survey between 2004 and 2013. Body fat was estimated according to the sum of the triceps and subscapular skinfold measurements. Multilevel models were utilized to examine associations between BF and responses to the lifestyle survey while controlling for known covariates.
Results: Lifestyle behaviors explained 8.6% of the total variance in body fat. Specifically, negative associations were found between BF and active transport to school ( β = −0.99 [0.19], P < .001), full-fat milk (−0.07 [0.15], P < .001), and sweetened beverage consumption (−0.40 [0.15], P = .007). Relative to the reference group of ≤8:00 PM, later bedtime was positively associated with BF: 8:00 to 8:59 PM ( β = 1.60 [0.26], P < .001); 9:00 to 10:00 PM ( β = 1.04 [0.24], P < .001); ≥10:00 PM ( β = 1.18 [0.30], P < .001). Two-way interactions revealed opposing associations between BF and the consumption of low-calorie beverages for boys ( β = 0.95 [0.25], P < .001) and girls ( β = −0.85 [0.37], P = .021). There was no significant change in these associations over a 10-year period.
Conclusions: In this population-level study covering a decade of data collection, lifestyle behaviors were associated with BF. Policies and interventions targeting population-level behavior change, such as active transport to school, sleep time, and consumption of full-fat milk, may offer an opportunity for improvements in BF.

Item Type: Article
Additional Information: Accepted author manuscript version reprinted, by permission, from Pediatric Exercise Science, 2021, https://doi.org/10.1123/pes.2020-0010 © Human Kinetics, Inc.
Uncontrolled Keywords: 1106 Human Movement and Sports Sciences, 1114 Paediatrics and Reproductive Medicine, 1302 Curriculum and Pedagogy
Subjects: R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
R Medicine > RC Internal medicine > RC1200 Sports Medicine
R Medicine > RJ Pediatrics > RJ101 Child Health. Child health services
Divisions: Sport & Exercise Sciences
Publisher: Human Kinetics
Date Deposited: 30 Mar 2021 10:16
Last Modified: 30 Mar 2021 10:48
DOI or Identification number: 10.1123/pes.2020-0010
URI: https://researchonline.ljmu.ac.uk/id/eprint/14713

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