Moderate-vigorous Physical Activity (MVPA)

The purpose of the study is to evaluate the impact of providing a skipping rope and informational pamphlet to adolescents aged 10-14 years on their physical activity intentions and behaviors from baseline to 12-month follow-up when compared with adolescents of the same age who are not provided with any intervention. This study comprises a two-arm randomized controlled trial nested within an adolescent cohort, i.e. a 'randomized trial-within-cohort'. The intervention will include providing each participant with a skipping rope and a pamphlet with general instructions for skipping the rope and messages about the importance of physical activity. The investigators hypothesize that adolescents in a South African community who are provided with a skipping rope and an informational pamphlet on physical activity will engage in more physical activity behaviors and will report greater intentions to be physically active at a 12-month follow-up, compared to a control group of adolescents who do not receive the intervention.