Washington, Sept 18: A new study has revealed that performing both aerobics and resistance exercise contributes to blood sugar control in people with type 2 diabetes.

A training session was conducted to determine the effect of aerobic and resistance exercise and included 251 adults, between ages 39 and 70, who were not exercising regularly and had type 2 diabetes.

In the training session participants were assigned to one of four groups: performing 45 minutes aerobic training three times per week, 45 minutes of resistance training three times per week, 45 minutes each of both three times per week, or no exercise.

All participants were evaluated on their changes in A1c value, a number that reflects blood sugar concentrations over the previous two or three months, and is expressed as a percent. An absolute decrease of 1.0 percent in A1c value (e.g. from 8.5 percent to 7.5 percent) would be associated with a 15 percent to 20 percent decrease in risk of heart attack or stroke, and a 25 percent to 40 percent decrease in risk of diabetes-related eye disease or kidney disease.

The groups that performed the aerobic and resistance exercises had improved blood sugar control A1c value decreased by about 0.5 percent. The group that did both kinds of exercise had about twice as much improvement as either other group alone—A1c value decreased by 0.97 percent compared to the control group. The control group that did not exercise had no change in A1c value.

“We know that aerobic exercise improves glycemic control. But we didn't really know too much about what kind of exercise is the most beneficial and how much of it. In particular there wasn’t much known about resistance exercises when we started planning this study. At the time, some thought that resistance exercise is not useful or even dangerous for some people with diabetes,” Ronald Sigal, MD, the lead author of the study said.

Dr. Sigal supervised the 26-week study, conducted in centres in Canada.

“And even for people who had fairly good blood sugar control at the beginning of our study, those who did both aerobic and resistance exercise had further improvements in glucose control, The bottom line is that doing both aerobic and resistance exercise is the way to maximize the effects of exercise on blood glucose control in type 2 diabetes,” Dr. Sigal said. (With Inputs from ANI)