Effects of the Curves fitness & weight loss program in women with medically managed conditions: body composition and resting energy expenditure
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abstract
146 sedentary women (5010 yrs, 1626 cm; 9520 kg; 465% body fat, 367 kg/m2) with medicallymanaged conditions were assigned to an exercise & no diet group (E) or a low calorie high carbohydrate (HC) or high protein (HP) diet. Diets consisted of 1,200 kcal/d for 1wk and 1,600 kcal/d for 9 wks of either HC (55% C, 15% P, 30% F) or HP (15% C, 55% P, 30% F). During weeks 1014, subjects consumed a HC maintenance diet (2,600 kcals/d) and were instructed to diet for 2d at 1,200 kcals/d if they gain 3 lbs. Subjects participated in a supervised Curves fitness program 3d per wk. DEXA body composition and REE measurements were obtained at 0, 10, and 14 weeks and were analyzed by repeated measures ANOVA. Data are presented as means SD changes from baseline for the E, HC, and HP groups, respectively, after 10 and 14 weeks. Subjects in the HP group lost more weight (2.36.6, 2.97.3; 7.98.7, 8.39.8; 10.06.6, 10.67.8 lb, p=0.000) and fat mass (3.16.4, 3.46.7; 3.97.6, 4.07.6; 7.65.6, 8.36.8 lb, p=0.001). Subjects in the E group increased REE while subjects in the diet groups only slightly decrease REE (17.12.1, 18.03.0, 18.53.2; 17.31.8, 16.82.6, 16.52.3; 17.03.0, 16.42.8, 16.52.3 kcal/kg, p=0.001). Results indicate that the Curves program is effective to promote weight loss without marked reductions in REE in women with medicallymanaged conditions.
