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Some Health-Risk Benefits of Behavioral Weight-Loss Treatments

This study reports assessment of some beneficial effects of behavioral weight-control treatments on measures of cardiovascular health. 31 women participated for each experiment. In Exp. 1, a 12-wk. dietary program resulted in mean reductions of 5.3 kg of weight, including 4.2 kg of fat, 24% in HDL-cholesterol and 11.95 mg/dl in Total Cholesterol, but no changes in cardiopulmonary fitness. Exp. 2 compared two 16-wk. treatments which added exercise self-management with and without additional structured-group exercise to the dietary component. No differences or interactions between treatments were significant. Combined data showed a mean weight loss of 8.3 kg, including 8.8 kg of fat, a 22% decrease in serum triglycerides, and a 22% increase in duration of exercise combined with a 5% reduction in maximal heart rate. These beneficial effects of including exercise in behavioral weight-loss treatments with women should be experimentally verified.