{'fraction_non_alphanumeric': 0.07455012853470437, 'fraction_numerical': 0.05141388174807198, 'mean_word_length': 4.260135135135135, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Effect of resistance training on changes in body composition and macronutrient utilization after weight loss in older women

We assessed the effect of resistance training (RT) on energy restriction (ER)‐induced changes in body composition and macronutrient utilization (MU) in older, overweight women. Sixteen women (age 68 ± 1 y, BMI 29 ± 1 kg/m2) consumed controlled diets with 1.0 g protein/kg•d for 16 wk. During wk 1–3 and 15–16, energy intake matched the subject's energy need, while during wk 4–14 it was 500 kcal/d below need. Each woman either performed RT 3 d/wk (n=8) or remain sedentary (SED, n=8). Fasting and postprandial (PP) energy utilization and PP energy storage from macronutrients were determined using indirect calorimetry and 1‐[13C] leucine infusion data at wk 2 and 15. PP energy and macronutrient intakes were the same pre and post intervention. Over time, body mass (SED −5.8 ± 0.6; RT −5.0 ± 0.2 kg) and fat mass decreased (SED −4.1 ± 0.9; RT −4.7 ± 0.5 kg) with no difference between groups. Fat‐free mass (FFM) decreased in SED (−1.6 ± 0.4 kg, P ≤ 0.05) but was unchanged in RT (−0.3 ± 0.4 kg, P = 0.07). At baseline, carbohydrate (CHO), fat and protein accounted for ~10, 76, and 14% of total MU (kcal/kg FFM•h) while fasting and ~35, 43, and 22% PP. PP energy storage was ~65, 25, and 10% CHO, fat, and protein. Weight loss and RT did not influence these proportions. Resistance training is an effective way for older women to preserve fat‐free mass after weight loss without affecting macronutrient utilization and storage.