Whey protein does not enhance the adaptations to elbow flexor resistance training.

摘要: AB Purpose: It is unclear whether protein supplementation augments the gains in muscle strength and size observed after resistance training (RT) because limitations to previous studies include small cohorts, imprecise measures of strength, no control prior exercise or habitual intake. We aimed determine whey affected RT-induced changes elbow flexor size. Methods: pair-matched 33 previously untrained, healthy young men for their intake response 3-wk RT without nutritional (followed by 6 wk training) then randomly assigned them (PRO, n = 17) placebo (PLA, 16) groups. Participants subsequently performed 3 d[middle dot]wk-1 12 consumed PRO PLA immediately before each session. assessed (unilateral 1-repetition maximum isometric voluntary force) (total volume anatomical cross-sectional area determined with magnetic resonance imaging) 12-wk RT. Results: demonstrated similar increases (PRO 17.0% +/- 7.1% vs 14.9% 4.6%, P 0.32), 16.2% 15.6% 4.4%, 0.80), 41.8% 21.2% 41.4% 19.9%, 0.97), force 12.0% 9.9% 14.5% 8.3%, 0.43). Conclusions: In context this study, did not augment that occurred (C)2012The American College Sports Medicine