Take Home Message: Physicians have recommended a MINIMUM of 150 minues of exercise weekly for diabetic risk reduction but the role resistance training or weight lifting is not certain. In this study, weight training was associated with a significantly lower risk of Type 2 Diabetes (T2DM), independent of aerobic exercise. Combined weight training & aerobic exercise conferred a greater benefit.
Association of weight training with risk of T2DM in US men & to assess the influence of combining weight training and aerobic exercise, a prospective cohort study of 32 002 men from the Health Professionals Follow-up Study from 1990-2008. Weekly time spent on weight training & aerobic exercise (including brisk walking, jogging, running, bicycling, swimming, tennis, squash, and calisthenics/rowing) was obtained from questionnaires at baseline and biennially during follow-up.
During 508 332 person-years of follow-up (18 years)
=> 2278 new cases of T2DM
=> dose-response relationship: increasing time spent on weight training or aerobic exercise and lower risk of T2DM (P < .001 for trend)
=> Engaging in weight training or aerobic exercise for at least 150 minutes per week was independently associated with a lower risk of T2DM of 34% (95% CI, 7%-54%) and 52% (95% CI, 45%-58%), respectively.
+> Men who engaged in aerobic exercise & weight training for at least 150 minutes per week had the greatest reduction in T2DM risk (59%; 95% CI, 39%-73%)
Via Seth Bilazarian, MD