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Confounding effect of biologic maturation on sex differences in physical activity and sedentary behavior in adolescents

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posted on 26.09.2016 by Aristides M. Machado Rodrigues, Manuel J. Coelho e Silva, Jorge Mota, Sean P. Cumming, Lauren Sherar, Helen Neville, Robert M. Malina
Sex differences in physical activity (PA) through pubertal maturation and the growth spurt are often attributed to changing interests. The contribution of sex differences in biological maturation to the adolescent decline has received limited attention. This study examined the contribution of somatic maturation to sex differences in objective assessments of sedentary behavior and PA in Portuguese adolescents (N = 302, aged 13-16 years). Maturation was estimated from the percentage of predicted mature stature and physically active and inactive behaviors assessed with Actigraph GT1M accelerometers. The influence of age, sex and their interaction on body size, maturation and physical behaviors were examined using factorial ANOVA and, subsequently, ANCOVA (controlling for maturation) tested the effect of sex. Males spent more time in MVPA and less time in sedentary behavior than females. However, sex differences were attenuated when maturation was controlled; thus suggesting that maturity may play an important role in adolescent behaviors.

Funding

This research was partially supported by Fundação para a Ciência e a Tecnologia—Ministério da Ciência Tecnologia e Ensino Superior [PTDC/DES/110158/2009, SRFH/BD/38988/2007].

History

School

  • Sport, Exercise and Health Sciences

Published in

Pediatric Exercise Science

Volume

22

Issue

3

Pages

442 - 453

Citation

RODRIGUES, A. ... et al., 2010. Confounding effect of biologic maturation on sex differences in physical activity and sedentary behavior in adolescents. Pediatric Exercise Science, 22 (3), pp.442-453.

Publisher

© Human Kinetics

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2010

ISSN

0899-8493

eISSN

1543-2920

Language

en

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