Effect of physical activity in patients with diabetes The effect of physical activity intervention helped reduce fasting blood glucose 1, 1 ± 1, 1 mmol / l, and HbA1c decreased by 0, 68 ± 0, 66% The effect of physical activity intervention for appropriate changes in circulatory-respiratory fitness: CRF in the intervention group increased by 0, 75 ± 1, 97 METs, while in the control group decreased by 0, 60 ± 2, 066 METs (p < 0, 05).