Body image is associated with leisure-time physical activity and sedentary behavior in adolescents: data from the Brazilian National School-based Health Survey (PeNSE 2015)

Abstract

Objective: To evaluate the association of leisure-time physical activity and sedentary behavior with body image concern and satisfaction in Brazilian adolescents. Methods: Data were extracted from the 2015 Brazilian National Adolescent School-based Health Survey (Pesquisa Nacional de Saú de do Escolar [PeNSE]). Information regarding body image concern and satisfaction, as well as exposures (physical activity and sedentary behavior) and covariates (maternal education, age, smoking, and alcohol intake), were assessed through a questionnaire. Results: Logistic regression analysis revealed that engagement in recommended levels of physical activity (X 300 min/week) was associated with a decreased concern with body image and a high satisfaction in boys. Four or more hours spent in sedentary activities were associated with increased concern with body image and dissatisfaction among boys and girls. Conclusion: These findings support the relevance of programs aiming to promote physical activity and reduce sedentary behavior in the adolescent population. Such programs play a protective role against body dissatisfaction and are important for the development of a healthy body image in adolescence.

Self-Rated Health Status of Upper Secondary School Pupils and Its Associations with Multiple Health-Related Factors

“…Accordingly, leisure time physical activity appears to be an important determinant for perceived health, particularly discriminating between positive and low or negative perception of health [ 30 ]. Gomes et al [ 31 ] report that leisure time exercise may positively influence mental health both directly and indirectly by reducing the time spent by youth in sedentary activities. These types of activities are also bidirectionally associated with health literacy, which may not only improve adolescents’ health status, but also their knowledge and understanding of the indicators of health and, as a consequence, influence their lifestyle choices [ 32 ].…”