Combined Physical Activity/Sedentary Behavior Associations With Indices of Adiposity in 8- to 10-Year-Old Children
| Autor: | Jean-Philippe Chaput, Katya M. Herman, Gilles Paradis, Angelo Tremblay, Marie-Eve Mathieu, Catherine M. Sabiston |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty Percentile Waist Cross-sectional study Motor Activity Body fat percentage Body Mass Index Screen time Internal medicine Humans Medicine Orthopedics and Sports Medicine Obesity Child Exercise Adiposity computer.programming_language business.industry sed Body Weight medicine.disease Diet Cross-Sectional Studies Endocrinology Female Self Report Sedentary Behavior Waist Circumference Energy Intake business computer Body mass index |
| Zdroj: | Journal of Physical Activity and Health. 12:20-29 |
| ISSN: | 1543-5474 1543-3080 |
| DOI: | 10.1123/jpah.2013-0019 |
| Popis: | Objective:Individuals may achieve high physical activity (PA) yet also be highly sedentary (SED). This study assessed adiposity in children classified by PA/SED groups.Methods:Participants were 520 8- to 10-year-old children with ≥ 1 obese parent. Moderate-to-vigorous PA (MVPA) and SED were measured by accelerometer, and screen-time was measured by self-report. Height, weight, waist circumference (WC), body fat percentage (BF%), and VO2peak were objectively measured; energy intake was measured by dietary recall. Elevated adiposity was defined as BMI ≥ 85th percentile, WC ≥ 90th percentile, BF% ≥ 85th percentile, or waist-to-height ratio (WHR) ≥ 0.5.Results:Up to 27% of boys and 15% of girls were active/SED. Adiposity was lowest for active/non-SED, highest for inactive/SED, and intermediate and similar for active/SED and inactive/non-SED. Using 60 min/d MVPA and 2 h/d screen-time cut-offs, prevalence ranges for elevated adiposity in the active/non-SED, active/SED, inactive/non-SED, and inactive/SED groups were 0% to 14%, 15% to 44%, 16% to 40%, and 32% to 51%, respectively. Corresponding odds and 95% confidence intervals of being overweight/obese for the latter groups were 3.8 (95% CI, 1.7−8.4), 3.8 (1.8−8.2), and 4.9 (2.3−10.3) versus active/non-SED. PA/SED-adiposity associations were mediated by fitness but not energy intake.Conclusions:Combined PA/SED levels are strongly associated with adiposity in children, but associations are mediated by fitness. Active children who accumulate >2 h/d of screen time and inactive children are equally likely to be overweight/obese. |
| Databáze: | OpenAIRE |
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