Table 1.

Study selection criteria.

PICOS	Eligibility Criteria
Population	Children and adolescents between six and eighteen years old
Intervention	Intervention studies based on motivation for the promotion of physical activity and psychosocial benefits
Comparison	Compare an intervention group based on motivational principles that promotes physical activity through different strategies with a control group
Outcome	Any physical or psychosocial outcome is measured or reported.Psychosocial outcomes: individual’s social and psychological aspects including, but not limited to cognitions, emotions, and mental health