The effect of a period of circular resistance training on serum perptin levels and insulin resistance in men with type 2 diabetes

The aim of this study was to investigate the effect of circular resistance training on serum peptin levels and insulin resistance index in men with type 2 diabetes. The present study is quasi-experimental. The statistical sample of this study consisted of 20 men with type 2 diabetes with mean and standard deviation of age 39.1 3 3.25 years, height 173.8 85 4.85 cm weight 80 ± 12.89 kg which were randomly divided into two groups of 12 people. Experimental and control were divided. Experiments in the experimental group performed 8 weeks of circular resistance training three sessions per week with an intensity of 50 to 80% of a maximum repetition. Before and after 8 weeks of exercise, serum levels of peptin, insulin resistance index, fasting glucose and insulin were measured. Correlated t-test and independent t-test were used to examine intragroup changes. Intragroup changes showed that 8 weeks of circular resistance training significantly reduced levels of peptin, insulin resistance index, fasting glucose and insulin (P = 0.0001) compared to the diabetic control group. Also, in the comparison between groups, circular resistance training caused a significant decrease in levels of peptin, insulin resistance index, fasting glucose (P = 0.0001) and insulin (P = 0.001) compared to the diabetic control group. The findings of this study showed that circular resistance training reduces levels of peptin, insulin resistance index, fasting glucose and insulin in people with type 2 diabetes. Therefore, it seems that this type of exercise can be useful for type 2 diabetics.