Physical activity, screen time and body composition in 13-year-old adolescents: The Generation R Study

IF 2.7 3区医学 Q1 PEDIATRICS Pediatric Obesity Pub Date : 2023-09-12 DOI:10.1111/ijpo.13076

Tong Wu, Junwen Yang-Huang, Meike W. Vernooij, María Rodriguez-Ayllon, Vincent W. V. Jaddoe, Hein Raat, Stefan Klein, Edwin H. G. Oei

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Abstract

Background

Body composition between prepubertal children and adolescents varies, and it is unclear how physical activity and sedentary behaviour affect adolescent body composition.

Objectives

This study aimed to examine the associations of physical activity and screen time with overall and specific fat depots in the general adolescent population.

Methods

In a population-based prospective cohort study, among 3258 adolescents aged 13 years, physical activity and screen time were assessed via self-report questionnaires. Body mass index, dual-energy X-ray absorptiometry-based measures (i.e. fat mass and lean body mass) and magnetic resonance imaging–based measures (i.e. abdominal subcutaneous and visceral fat mass) were obtained.

Results

After adjusting for social-demographic and growth-related factors, each additional hour of daily physical activity was associated with lower fat mass, abdominal visceral fat mass and higher lean body mass (all p < 0.05). However, these associations were not observed in the longitudinal analyses. Each additional hour of daily screen time was associated with higher body mass index, fat mass, abdominal subcutaneous and visceral fat mass (all p < 0.05), which were consistent with the longitudinal analyses.

Conclusion

Adolescents with higher physical activity and lower screen time had lower levels of adiposity both at the general and visceral levels.

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13岁青少年的体育活动、屏幕时间和身体成分：R世代研究

背景青春期前儿童和青少年的身体成分各不相同，尚不清楚体育活动和久坐行为如何影响青少年的身体组成。目的本研究旨在检验一般青少年人群的体育活动和筛查时间与整体和特定脂肪库的关系。方法在一项基于人群的前瞻性队列研究中，对3258名13岁的青少年进行了研究年、体力活动和屏幕时间通过自我报告问卷进行评估。获得了体重指数、基于双能X射线吸收法的测量（即脂肪量和瘦体重）和基于磁共振成像的测量（如腹部皮下和内脏脂肪量）。结果在校正了社会人口统计学和生长相关因素后，每增加一小时的日常体育活动与较低的脂肪量、腹部内脏脂肪量和较高的瘦体重有关（均p <； 0.05）。然而，在纵向分析中没有观察到这些关联。每天筛查时间每增加一小时，体重指数、脂肪量、腹部皮下脂肪量和内脏脂肪量就越高（均p <； 0.05），这与纵向分析一致。结论体育活动量大、筛查时间短的青少年，无论在全身还是内脏层面，肥胖水平都较低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pediatric Obesity PEDIATRICS-

CiteScore

7.30

自引率

5.30%

发文量

117

审稿时长

6-12 weeks

期刊介绍： Pediatric Obesity is a peer-reviewed, monthly journal devoted to research into obesity during childhood and adolescence. The topic is currently at the centre of intense interest in the scientific community, and is of increasing concern to health policy-makers and the public at large. Pediatric Obesity has established itself as the leading journal for high quality papers in this field, including, but not limited to, the following: Genetic, molecular, biochemical and physiological aspects of obesity – basic, applied and clinical studies relating to mechanisms of the development of obesity throughout the life course and the consequent effects of obesity on health outcomes Metabolic consequences of child and adolescent obesity Epidemiological and population-based studies of child and adolescent overweight and obesity Measurement and diagnostic issues in assessing child and adolescent adiposity, physical activity and nutrition Clinical management of children and adolescents with obesity including studies of treatment and prevention Co-morbidities linked to child and adolescent obesity – mechanisms, assessment, and treatment Life-cycle factors eg familial, intrauterine and developmental aspects of child and adolescent obesity Nutrition security and the "double burden" of obesity and malnutrition Health promotion strategies around the issues of obesity, nutrition and physical activity in children and adolescents Community and public health measures to prevent overweight and obesity in children and adolescents.