Moderating Role of Physical Fitness in the Association Between TV Time and Adiposity Parameters in Adolescents

心肺适能 腰围 适度 医学 体质指数 肥胖 腹部肥胖 屏幕时间 联想(心理学) 身体素质 横断面研究 人口学 物理疗法 老年学 内科学 心理学 社会心理学 病理 社会学 心理治疗师
作者
Nathalie Costa,João Francisco de Castro Silveira,Letícia de Borba Schneiders,Ana Paula Sehn,Éboni Marília Reuter,James Hobkirk,Sean Carroll,Cézane Priscila Reuter
出处
期刊:American Journal of Health Promotion [SAGE Publishing]
卷期号:36 (7): 1104-1111 被引量:3
标识
DOI:10.1177/08901171221086951
摘要

Purpose To identify whether physical fitness (PF) components play a moderating role in the relationship between TV time and adiposity levels. Design Cross-sectional study. Setting Few studies have examined if different PF levels modify the association between TV time and adiposity in adolescents. Studies often focus on the isolated relationships between obesity and TV time, or obesity and PF levels. Subjects 1071 adolescents (617 girls), aged 12 to 17 years. Measures Cardiorespiratory fitness (CRF), abdominal muscular endurance, and lower limb strength were evaluated using the protocols of the Projeto Esporte Brasil fitness testing battery. TV time was obtained using a self-reported questionnaire. Body mass index (BMI) and waist circumference (WC) were also assessed. Moderation analyses were conducted through multiple linear regression models with the following associations tested in different models: PF components, TV time, and interaction (PF component x TV time) with adiposity parameters (BMI and WC); Results A significant interaction term was found for CRF and TV time in the association with both WC (β: −.005; 95% CI: −.009; −.001; P = .012) and BMI (β: −.002; 95% CI: −.004; −.001; P = .009). Conclusion CRF moderates the relationship between TV time and adiposity measures in this cross-sectional analysis. These data support strategies looking at increasing physical activity levels to improve CRF and avoid the development of excess abdominal obesity and excess weight.
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