The Effect of Progressive Resistance Training on Muscle Mass and Oxidative - Antioxidative Markers in Muscle Tissue of Diabetic Rats

The aim of the present study was to investigate the effect of a period of progressive resistance training on muscle mass and muscular oxidative - antioxidative markers in diabetic rats. In an experimental study, 24 Wistar rats were divided into two groups: resistance training (n=12) and control (n=12). Diabetes was induced by single-dose injection of streptozotocin (50 mg/kg of body weight, intra protaneal, dissolved in phosphate buffer). Training group performed resistance training for 8 weeks, 3 sessions per week. 48 hours after the last training session, animals were anesthetized and blood was taken from the heart; then, the flexor hallucis longus muscle (FHL) was removed from the lower limb. Independent samples t test was used to compare the groups. In resistance training group, FHL muscle mass and FHL muscle mass / body weight ratio were significantly higher than the control group (P=0.002 and P=0.033 respectively). Level of MDA in FHL muscle of resistance training group was 12.2% higher than the control group, but the difference between the groups was not statistically significant (P=0.176). Protein Carbonyl (PC) level of FHL muscle in training group was 26% lower than the control group but the difference between the groups was not statistically significant (P=0.062). Moreover, findings showed that total glutathione content (T-GSH) of FHL muscle in training group was 36.8% higher than the control group (P