The effect of resistance training on coagulation and fibrinolysis factors in sedentary obese children

children obesity can leads to cardiovascular disease and impairment in blood coagulation and fibrinolysis. the aim of this study was the effect of resistance training on blood coagulation and fibrinolysis factors in children. Thirty obese children (8-12 yr) voluntary participated in this study and Based on anthropometrical characteristic and body composition were divided homogenously randomly into control and training groups. The resistance training consists of ten weeks (3 times per week) with the intensity of 50-60% 1- repetition maximum. Blood samples were taken before and 48 hours after training period and were used for measurement of variables. Data was analyzed with SPSS software and ANOVA repeated measure. the results showed that levels of plasminogen activator inhibitor‐1)PAI-1(,tissue-type plasminogen activator (t-PA), Von Willebrand-factor (vWF), D-daimer, fibrinogen, interlokine-6 and body fat percentage were significantly decreased in response to the resistance training in the training group compared to the control group (P0.05). furthermore, in the post-test, the resistance training causes reduction in body fat percentage, D-dimer, vWF, fibrinogen and IL-6 levels, PAI-1 and t-PA compared to the pre-test (P the results suggested that the moderate resistance training with reducing blood coagulation factors and inflammatory factor maybe causes reduction in incidence of atherosclerosis in obese children, and can be used as proper training protocol for health maintain in obese children