Seasonal variability in body mass index, waist circumference, and skinfolds in Norwegian children.

Autor: Moen OK; Department of Clinical Science, University of Bergen, Bergen, Norway., Júlíusson PB; Department of Clinical Science, University of Bergen, Bergen, Norway.; Department of Paediatrics, Haukeland University Hospital, Bergen, Norway.; Department of Health Registry Research and Development, Norwegian Institute of Public Health, Bergen, Norway., Roelants M; Environment and Health/Youth health Care, Department of Public Health and Primary Care, KU Leuven, University of Leuven, Leuven, Belgium., Spielau U; Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway.; Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway.
Jazyk: angličtina
Zdroj: American journal of human biology : the official journal of the Human Biology Council [Am J Hum Biol] 2024 Sep; Vol. 36 (9), pp. e24084. Date of Electronic Publication: 2024 Apr 12.
DOI: 10.1002/ajhb.24084
Abstrakt: Objectives: Studies have shown that children develop a higher body weight during summer months. This has been demonstrated repeatedly using the body mass index (BMI), but the effect of season on other weight-related anthropometric measurements is still unclear.
Methods: Measurements of height, weight, waist circumference (WC), triceps, and subscapular skinfolds (TSF and SSF), collected from September till May in a cross-sectional sample of 4-16-year-old children and adolescents (n = 4525) from the Bergen Growth Study 1 (BGS1). Differences in z-score by season were tested with linear models adjusted for age group and separately for sex. Overall differences were tested with a one-way between-group analysis of variance.
Results: The girls had higher BMIz (+0.12, p = .03) and WCz (+0.18, p = .002) in fall compared with spring. TSFz (-0.19, p < .001) and SSFz (-0.18, p < .001) were lower in winter in girls, and in boys both in fall (TSFz -0.10, p = .046; SSFz - 0.16, p < .001), and winter (TSFz -0.15, p = .004; SSFz -0.14, p = .003), when compared with spring.
Conclusions: Seasonal variation was detected for all anthropometric measures, but differences in the direction of the effect between measures of global (BMI), central (WC) or subcutaneous (SF) adiposity suggest a more complex mechanism that needs further exploration.
(© 2024 The Authors. American Journal of Human Biology published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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