Team McCallum

R&D for Lifetime of Life

Exercise v diabetes.

Dr Timothy S Church reported in the Journal of the American Medical Association that a combination of resistance and aerobic exercise of around 140 minutes per week was successful in improving a key marker in type 2 diabetics already on medication.

262 sedentary men and women, average age 56, were randomly allocated to one of – a control group (no exercise), resistance training, aerobic training, and combined resistance and aerobic training.

The resistance training group exercised 3 times a week. The aerobic group did enough exercise to burn 12 kcal per kilo of bodyweight per week. The combined group did aerobics to expend 10 kcal per kilo per week plus 2 sessions of resistance training, which totalled around 140 minutes. This is fairly close to 2008 guidelines of 150 minutes of exercise per week.

The program ran for 9 months, and medicine continued to be used as prescribed by a physician.

Compared to controls, the other groups decreased waist circumference by around and inch. The resistance training group lost 3.1 lbs of fat, while the combination group lost 3.7 lbs of fat (both retaining lean tissue unchanged).

The key outcome measure was glycated hemoglobin (HbA1C). This is a measure of the long term average level of blood sugar.

While the resistance-only and aerobics-only groups had lower values of HbA1C than controls, these were not great enough to be statistically significant, so these forms of exercise on their own don’t have enough impact.

For the combined exercise group, the cut in HbA1C compared to controls was big enough to be significant. This supports the 2008 guidelines, that a mix of both at around 150 minutes per week is beneficial.

During the study, the control group increased its use of diabetic medicines, while in the combined exercise group the use of medication to treat diabetes dropped.


November 26, 2010 - Posted by | Diabetes, Exercise, Success, Waist circumference, Weight management

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