“…In contrast, physical inactivity may have negative consequences for individuals, family, and the community, directly and indirectly increasing costs to the healthcare system [ 1 ]. Several reports have shown that PA not only improves physical health but also may have a positive impact on mental health problems, well-being, and quality of life [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. Although the number of studies investigating PA and mental illness in adults is increasing [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ], results pertaining to this relationship in children and adolescents are mixed and even scarce.…”