Objective: This study was to explore the influence of the 4-week enclosed exercise for weight loss in obese adolescents' body composition, prostaglandin E2(PGE2), hypersensitive c-reactive protein(hs-CRP), vascular hardness and a series of changes in morphological indexes and blood biochemical indicators. And we continue to discuss the effect of obesity for adolescents and the role of enclosed exercise for weight loss, to explore why various indicators change, in order to prevent obesity and promote the hea...