The Effect of Resistance Training on Serum Leptin in Obese Men

The aim of the present research was study the effect of resistance training on serum leptin in obese men. For this purpose 16 obese male (age 35-48) with 82.96 ± 10.4 Kg average weight voluntarily selected and randomly assigned to two groups: resistance training and control group. Blood samples were taken in fasting state from all subjects. The experimental subjects received resistance training for 13 weeks, 3 sessions per week. In this time, the control group did not receive any treatment. The resistance training was done in circuit fashion with 11 stations. Each training session included 4 sets with 12 maximal repetitions in every station done with 50- 60% intensity of onemaximum repetition (IRM). Results showed that in training group, serum leptin concentration was significantly lower than control group (P<0.05). we concluded that resistance training caused a decrease in leptin level in obese men. This decrease is greater of change that there was in fat mass.