a review of 27 past studies, New Zealand researchers report that any
type of exercise has significant benefits for those suffering from Type
2 diabetes. It also appears that the more severe the extent of the
diabetes is, the more effective exercise will be. Researchers
did find resistance training combined with cardiovascular exercise
appears to be the most beneficial for controlling blood sugar in type 2
diabetics. It's also essential for type 2 diabetics to follow important
dietary recommendations for their disease, as incorporation of exercise
and dietary modifications will have far greater benefits than either
exercise or dietary modifications alone.
Source: Diabetes Care, November 2006.