The Influence of 2-Year Changes in Physical Activity, Maturation, and Nutrition on Adiposity in Adolescent Youth.

Authors:
Dr. Justin B Moore, PhD, MS
Dr. Justin B Moore, PhD, MS
Wake Forest School of Medicine
Associate Professor
Implementation Science, Epidemiology
Winston-Salem, NC | United States
Elvis A Carnero
Elvis A Carnero
Technical University of Lisbon
Portugal

PLoS One 2016 8;11(9):e0162395. Epub 2016 Sep 8.

Biodynamic and Body Composition Laboratory, University of Málaga, Málaga, Spain.

The aim of this longitudinal study was to explore temporal patterns of physical activity (PA) and adiposity in Spanish adolescents. Eighty healthy adolescents were followed over a 2-year period (42 girls and 38 boys). A PA score was estimated using the Physical Activity Questionnaire for Adolescents (PAQ-A). Adiposity was assessed by anthropometric measurements; body mass index (BMI) and fat mass percent (FMP) were calculated using standard equations. Sexual maturity was estimated by percentage of predicted adult stature. Dietary intake was assessed by a self-administered food-frequency questionnaire. Three assessments were performed: September 2011 (S1), 2012 (S2), and 2013 (S3). A repeated-measures ANOVA was conducted to examine temporal changes in PA and FMP and sex change in maturation categories (two factor mixed-design, 2x2x3). A stepwise linear regression was conducted in order to estimate the predictors of FMP change. Significant changes for FMP were found between S1, S2, and S3 (23.41±8.24 vs. 21.89±7.82 vs. 22.05±8.06, p<0.05; respectively); a significant interaction of FMP with sex was observed (F = 4.387, p<0.05 for S2-S3), but not for maturation. PA at S2 was significantly higher than S3 (2.58±0.72 vs. 2.29±0.73, p<0.001). An interaction between PA change and sex was statically significant (F = 4.889, p<0.05 for S2-S3). A reduction in PA was observed after the S2 period without changes in adiposity. In contrast, a significant reduction in FMP was seen between S1 and S2, while PA did not significantly change. There were no significant differences for nutritional variables between S1 and S3, and nutrition was not a determinant of the changes in PA or FMP. Our results suggest that body composition changes observed during adolescence are not driven by changes in PA. Moreover, the interaction analysis suggests that PA behavior is affected by sex, but is not modified by maturation.

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0162395PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5015847PMC

Still can't find the full text of the article?

We can help you send a request to the authors directly.
August 2017
27 Reads
3.234 Impact Factor

Publication Analysis

Top Keywords

physical activity
12
changes fmp
8
dietary intake
4
stature dietary
4
adult stature
4
percentage predicted
4
predicted adult
4
intake assessed
4
assessed self-administered
4
three assessments
4
assessments performed
4
questionnaire three
4
food-frequency questionnaire
4
estimated percentage
4
self-administered food-frequency
4
performed september
4
maturity estimated
4
bmi fat
4
fat mass
4
mass bmi
4

References

(Supplied by CrossRef)
Physical activity and biological maturation: a systematic review
ED Bacil et al.
Revista paulista de pediatria: orgao oficial da Sociedade de Pediatria de Sao Paulo 2015

Similar Publications