In this study, the effects of resistance training on plasma levels of heat shock protein 70 (HSP70) of obese women was done. In this study, 30 obese women with a body mass index greater than kg / m230 with an average age of 81/6 ± 35 and an average height of 27/5 ± 81/157, were randomly divided into two groups (n = 15) and experimental (n = 15 ), respectively. Then experimental groups did the circular resistance training program with 70% of one repetition maximum (1RM) with 10 reps per move for 2 times for 12 weeks (5 days a week) . Fasting blood samples were taken in two stages, 48 hours before and after the exercise to evaluate plasma levels of HSP70. The results showed that compared within the group and between groups, the variables of weight, BMI, body fat percentage and plasma levels of HSP70 was followed by 12 weeks of resistance training circuit significantly decreased (05 / 0≥P) and VO2max (05 / 0≥P) significantly increased. So, doing a 12-week resistance training improves body composition, aerobic fitness, and also may reduce apoptosis (cell death) and prevention of cancer tumors.
