Purpose We examined the effects of aerobic exercise and detraining on adiponectin, resistin, tumor necrosis factor alpha (TNF-α), white blood cell, and pubertal signs (uterine length, ovarian volume, luteinizing hormone (LH), and follicle-stimulating hormone (FSH)) in girls with central precocious puberty (CPP). Methods Thirty girls with CPP (aged 7-9) were randomly divided into CPP and CPP + Exercise (EX) groups. 15 Healthy age-matched girls without precocious puberty participated for comparison with CPP. Subjects in the CPP + Ex group attended 12 weeks of aerobic exercise protocol three sessions a week. In the baseline, after completing the exercise protocol and after 4 weeks of detraining, all the parameters were measured. In the CPP and healthy groups, all the parameters were measured in all three stages. To measure adiponectin, resistin, and TNF-α, the ELISA method was used. LH and FSH were measured by electrochemiluminescence immunoassay. WBC counts were analyzed by an automated blood cell counter. Analysis of Variance with repeated measures test was used to analyze the results. Results CPP girls have lower adiponectin (P = 0.01) and higher TNF-α levels (P = 0.001) than healthy girls. In the CPP + EX group, after 12 weeks, body weight and fat mass decreased, adiponectin increased significantly (P = 0.02). Resistin (P = 0.02), TNF-α (P = 0.02), neutrophils (P = 0.01), and signs of puberty significantly (P
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