Abstarct: mathced continuous vs. high intensity interval training with weight-loss diet on glycemic control in individuals with type-2 diabetes Abstract Background and objectives: Type 2 diabetes is one of the most common mextabolic diseases and the patients are recommended to lose weight. Despite the use of various treatment methods to control and prevent obesity and type 2 diabetes, lifestyle modification as the underlying factor is plays a critical role in the management of obesity and related diseases. Research shows that the mextabolic effects of exercise may depend on the intensity or the total energy consumed during exercise; Therefore, the present study was conducted to compare the effect of continuous moderate-intensity exercise versus high-intensity interval exercise along with a calorie-restricted diet on glycemic control in type 2 diabetes. Materials and methods: This is a randomized controlled trial involving 42 overweight or obese type II diabetic particiants randomly assigned to three groups: continuous training, interval training, and control. Continuous training (at 55%-65% of the heart rate reserve) and interval trainng (one minute at 85% to 90% of heart rate reserve interspersed with one minute at 40-45% of the reserve heart rate) were matched for energy expenditure and were performed 3 days a week over 12 weeks. The participants were on a 20% calorie deficit diet. Before and 48 hours after the last training session, measurements including body composition, resting mextabolism by indirect calorimetry and blood sampling were performed. Research data were analyzed using one-way analysis of variance and Tukey's test at a significance level of p < 0.05. Results: Data analysis showed that both continuous moderate-intensity and high-intensity interval training decreased fasting blood sugar, glycosylated hemoglobin, posprandial glucose, insulin resistance, total body fat percentage, body mass index and weight. (p < 0.05), but had no significant effect on insulin compared to the control group (p < 0.05). There was no significant difference between the experimental groups in terms of the findings (p < 0.05). Conclusion: It seems that, mextabolic and weight lowering effects of exercise training depends more on the energy expenditure of exercise training than the intensity in overweight or obese diabetic patients. However, it needs to be verified in longer duration programs.