“…The adoption of such behavior happens in a complex manner and can be predicted/influenced by several factors [ 14 , 15 ], including social support from parents and friends [ 7 , 8 , 16 , 17 , 18 , 19 ]. The scientific literature indicates that adolescents who perceive themselves as receiving support from parents and friends regarding physical activity practice increase their chances of being more physically active [ 7 , 8 , 16 , 17 , 18 , 19 ]. While some studies have examined the association between social support and physical activity [ 7 , 8 , 16 , 17 , 18 , 19 ], no previous study has examined the association considering the different levels of physical activity (i.e., 180, 300, 420 min/week).…”