If you have prediabetes, walking briskly a mile or two a day, on average, is one of the best ways to improve blood sugar control, according to a study in the journal Diabetologia. Prediabetes, also called impaired glucose tolerance, refers to modestly elevated blood sugar levels and often progresses to full-blown diabetes.
Researchers from Duke University divided 237 people with prediabetes into four groups.
• One group followed the Diabetes Prevention Program, considered the gold standard, which requires calorie reduction and moderate exercise (equal to 7½ miles of brisk walking a week).
The other groups did exercise only, with each group following one of these three regimens:
• Low amount of exercise at moderate intensity (equal to 7½ miles of brisk walking a week)
• High amount of exercise at moderate intensity (equal to 11½ miles of brisk walking a week)
• High amount of exercise at high intensity (equal to 11½ miles of jogging a week).
After six months, the Diabetes Prevention Program group had the biggest improvement in blood sugar control, followed by the group that did a high amount of moderate exercise. The other two exercise groups benefited less.
Also see Medication for Prediabetes?