Diet or diet plus physical activity in patients with early type 2 diabetes

摘要

R C Andrews and colleagues (July 9, p 129)1 state astheirfinal interpretation that "The addition of an activity intervention conferred no additionalbenefits." However, this conclusion is misleading, since the achieved increases in physical activity in the diet plus activity group were insufficient to support it. In fact, although only one group was instructed to do physical activity, no clinically relevant difference was noted in moderate-to-vigorous physical activity versus the "non-sedentary" control and diet intervention groups (31 min vs 26 min and 27 min, respectively, by accelerometry). The within-group increase from baseline in the diet plus physical activity group was also small (from 23 min to 31 min).