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首页> 外文期刊>Journal of the International Society of Sports Nutrition >The short-term effect of high versus moderate protein intake on recovery after strength training in resistance-trained individuals
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The short-term effect of high versus moderate protein intake on recovery after strength training in resistance-trained individuals

机译：在耐久性培训的人员中，高与中等蛋白摄入的短期效果恢复

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Dietary protein intakes up to 2.9?g.kg-1.d-1 and protein consumption before and after resistance training may enhance recovery, resulting in hypertrophy and strength gains. However, it remains unclear whether protein quantity or nutrient timing is central to positive adaptations. This study investigated the effect of total dietary protein content, whilst controlling for protein timing, on recovery in resistance trainees. Fourteen resistance-trained individuals underwent two 10-day isocaloric dietary regimes with a protein content of 1.8?g.kg-1.d-1 (PROMOD) or 2.9?g.kg-1.d-1 (PROHIGH) in a randomised, counterbalanced, crossover design. On days 8-10 (T1-T3), participants undertook resistance exercise under controlled conditions, performing 3 sets of squat, bench press and bent-over rows at 80% 1 repetition maximum until volitional exhaustion. Additionally, participants consumed a 0.4?g.kg-1?0.05). However, within PROMOD only, squat performance total repetition count was significantly lower at T3 (19.7?±?6.8) compared to T1 (23.0?±?7.5; p?=?0.006). Pre and post-exercise CK concentrations significantly increased across test days (p?≤?0.003), although no differences were reported between conditions. No differences for TNF-α or muscle soreness were reported between dietary conditions. Phase angle was significantly greater at T3 for PROHIGH (8.26?±?0.82°) compared with PROMOD (8.08?±?0.80°; p?=?0.012). When energy intake and peri-exercise protein intake was controlled for, a short term PROHIGH diet did not improve markers of muscle damage or soreness in comparison to a PROMOD approach following repeated days of intensive training. Whilst it is therefore likely that moderate?protein intakes (1.8?g.kg-1.d-1) may be sufficient for resistance-trained individuals, it is noteworthy that both lower body exercise performance and bioelectrical phase angle were maintained with PROHIGH. Longer term interventions are warranted to determine whether PROMOD intakes are sufficient during prolonged training periods or when extensive exercise (e.g. training twice daily) is undertaken.
机译：膳食蛋白摄入量高达2.9？G.Kg-1.D-1和抗性训练前后的蛋白质消耗可能会增强恢复，导致肥大和强度收益。然而，它仍然尚不清楚蛋白质数量或营养定时是阳性适应的核心。本研究研究了总膳食蛋白质含量的影响，而控制蛋白质时序，抵抗抗性培训培训人员。训练有素的培训人员在随机化中接受了两种10天的异孔饮食制度，蛋白质含量为1.8Ω·kg-1.d-1（promod）或2.9？g.kg-1.d-1（prohigh） ，平衡，交叉设计。在8-10天（T1-T3）上，参与者在受控条件下进行抵抗运动，执行3套蹲下，卧床和弯曲行，最大值为80％1重复，直至无与伦比的耗尽。此外，参与者消耗了0.4？G.KG-1？0.05）。然而，与T1（23.0？±7.5; p？= 0.006）相比，T3（19.7？±6.8）在T3（19.7？±6.8）中，蹲下性能总重复计数显着降低。锻炼后的CK浓度在测试日内显着增加（P？≤≤003），但条件之间没有报告差异。在膳食条件之间报道了TNF-α或肌肉酸痛的差异。与PROMOD相比，PROHigh（8.26Ω±0.82°）的T3在T3的相位角显着较大（8.08？±0.80°; p？= 0.012）。控制能量摄入量和Peri-Spress蛋白摄入量，短期饮食并没有改善肌肉损伤的标志物或相比，与重复培训的重复日期突出方法相比，突出方法与突出方法相比。然而，如果适度？蛋白质摄入量（1.8？G.KG-1.D-1）可能足以用于训练训练的个体，因此值得注意的是，将较低的身体运动性能和生物电相角度与ProHigh保持。需要长期干预措施，以确定突出摄入量是否足够，在长期培训期或广泛的运动时（例如每日两次培训）。

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