Long-term Effect of Moderate and Vigorous Exercise on Incident Diabetes in Obese Subjects

12 month lifestyle education

12 month moderate intensity exercise by brisk walk 30 min per day and more than 5 days per week.

6 month vigorous intensity exercise on treadmill for 30 min per day and more than 5 days per week, and subsequent 6 month moderate exercise by brisk walk 30 min per day and more than 5 days per week.