Socio-structural determinants of physical activity behavior in children and adolescents : The importance of social support

Abstract

The purpose of this study is to analyze the influence of socio-structural determinants of physical activity (PA) behavior in children and adolescents. We expected that socioeconomic status, social support, and physical environment influence PA directly while socioeconomic status also has an indirect influence via social support and physical environment. Cross-sectional data from the German Motorik-Modul study (MoMo) were used (Wave 2, 2014–2017). The sample consisted of N = 2134 children and adolescents aged 6–17 years. Socioeconomic status, social support, and physical environment were measured by questionnaires. To measure PA, children and adolescents were instructed to wear accelerometers for seven consecutive days. Moderate-to-vigorous activity periods were considered. Path analyses were used to analyze the direct and indirect effects. We calculated two models, one for children (6–10 years) and one for adolescents (11–17 years). Among children (model 1), only social support had a direct effect on PA behavior. In addition, social support influenced the perceived physical environment. Socioeconomic status had an indirect effect on PA via social support. For adolescents (model 2), all assumed relations were significant and in line with the directions expected. Social support had the strongest direct influence on PA behavior. Socioeconomic status had a direct and indirect effect on PA via the physical environment and social support. The study results emphasize the relevance of close, social networks of families and friends as well as social capital, as a source of social support, for PA levels among young age groups.