Obesity is an important modifiable risk factor for type 2 diabetes mellitus.1,2 The prevalence of obesity has increased substantially over the last decade,3- 5 leading to increases in the incidence and prevalence of type 2 diabetes mellitus.6- 8 Physical activity and weight control have been shown to be important in diabetes prevention9- 11 and diabetes management.1- 3 Among patients with type 2 d