Increased Muscle Mass May Lower Risk of Pre-Diabetes

http://www.sciencedaily.com/releases/2011/07/110728082601.htm

ScienceDaily (July 28, 2011) — A recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) found that the greater an individual's total muscle mass, the lower the person's risk of having insulin resistance, the major precursor of type 2 diabetes.

With recent dramatic increases in obesity worldwide, the prevalence of diabetes, a major source of cardiovascular morbidity, is expected to accelerate. Insulin resistance, which can raise blood glucose levels above the normal range, is a major factor that contributes to the development of diabetes. Previous studies have shown that very low muscle mass is a risk factor for insulin resistance, but until now, no study has examined whether increasing muscle mass to average and above average levels, independent of obesity levels, would lead to improved blood glucose regulation.

"Our findings represent a departure from the usual focus of clinicians, and their patients, on just losing weight to improve metabolic health," said the study's senior author, Preethi Srikanthan, MD, of the University of California, Los Angeles (UCLA). "Instead, this research suggests a role for maintaining fitness and building muscle. This is a welcome message for many overweight patients who experience difficulty in achieving weight loss, as any effort to get moving and keep fit should be seen as laudable and contributing to metabolic change."

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