The Independent and Interactive Associations of Screen Time and Physical Activity on Mental Health School Connectedness and Academic Achievement among a Population-Based Sample of Youth

摘要

Objective:Few studies have addressed the links between sedentary behaviour (SED) and mental health in youth. Most studies on physical activity (PA) and SED examine their independent effects on mental health, or fail to account for PA in this relationship. The purpose of this study is to examine the independent effects of PA and screen time on mental health, school connectedness and academic achievement, and potential interactions between PA and screen time in such associations.