The FASEB Journal. 2013;27:lb335
Effects of nutrient timing following resistance-exercise on changes in body composition in post-menopausal women participating in weight loss program
Mike Byrd
21 sedentary women (59.8±5 yr, 43.7±3% body fat, 31.0±3 kg/m2) followed Curves Complete® energy-restricted diet (30% C, 45% P, and 25% F) while participating in a circuit resistance-training (3 d/wk) and walking (30 min, 3/d wk) program for 12-wks.
Participants ingested a drink containing 15g of protein immediately following (I) or 2-hr after (D) exercise as part of their diet. Data were analyzed by MANOVA and are presented as changes from baseline after 12 wks for the I and D groups, respectively. While significant time effects were seen in body mass, fat mass, and body fat; no significant group x time effects were observed. However,
participants in the D group generally experience more favorable changes in body mass (I –3.6±2.2; D –4.2±4.2, kg, p=0.59), fat mass (I –3.5±1.5; D –4.8±3.3, kg, p=0.32), FFM (I –0.0±1.7; D 1.1±1.3, kg, p=0.24), and body fat (I –2.8±1.9; D –4.4±3.1 %, p=0.25). No differences were seen among groups in REE (I – 82±126; D –90±142 kcal/d, p=0.34). Additional research should examine whether nutrient timing affects training adaptations in post-menopausal women who participate in an energy deficit higher protein and low fat diet with resistance-exercise.
