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首页> 外文期刊>Journal of exercise physiology online >The Addition of Protein to a Carbohydrate Endurance Supplement Does Not Enhance Running Performance
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The Addition of Protein to a Carbohydrate Endurance Supplement Does Not Enhance Running Performance

机译：在碳水化合物耐力补充剂中添加蛋白质不会增强跑步性能

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Mattern CO, Campbell B, Carson T, Charland J, Craven WS, Filip N, Watt CA, Yaple R, Byrne HK. The Addition of Protein to a Carbohydrate Endurance Supplement Does Not Enhance Running Performance. JEPonline 2014;17(5):31-42. It is unclear whether or not the isocaloric addition of protein (PRO) to a carbohydrate (CHO) endurance exercise supplement improves exercise performance and/or recovery. Thus, the two-fold purpose of this study was to: (a) determine if a PRO+CHO beverage ingested during and/or after endurance exercise improves performance in a subsequent exercise bout compared to CHO alone; and (b) if the timing of the supplement influences recovery and subsequent exercise performance. Using a randomized crossover design, 9 endurance trained subjects (age = 33 ± 12.7 yrs; VO2 max = 65.1 ± mL·kg -1 ·min -1 , body fat = 7.9 ± 2.98%) received a beverage containing CHO (0.65 g of CHO·kg -1 ) or CHO + PRO (0.52 g of CHO·kg -1 plus 0.13 g of protein·kg -1 ) participated in a 1-hr run at 67% ± 5.4 of VO2 max. During a 7-hr recovery period, the subjects were given beverages that contained either CHO (1.0 g of CHO·kg -1 ) or CHO+PRO (0.80 g of CHO·kg -1 plus 0.20 g of protein·kg -1 ) immediately post-exercise and at 1 hr and 4 hrs of during recovery. Then, the subjects ran a 10-km time trial. There were no statistical differences in blood glucose or insulin during or after exercise among the four nutritional conditions. There was no difference between type or timing of the supplement on the 10-km performance, suggesting that the combination of PRO+CHO affords no additional benefit when compared to CHO alone.
机译：Mattern公司，Campbell B，Carson T，Charland J，Craven WS，Filip N，Watt CA，Yaple R，Byrne HK。在碳水化合物耐力补充剂中添加蛋白质不会增强跑步性能。 JEPonline 2014; 17（5）：31-42。尚不清楚向碳水化合物（CHO）耐力运动补充剂等热量添加蛋白质（PRO）是否会改善运动表现和/或恢复能力。因此，这项研究的双重目的是：（a）确定在耐力运动期间和/或之后摄入的PRO + CHO饮料与单独的CHO相比是否能改善随后的运动发作的表现; （b）补充营养的时间是否影响恢复和随后的运动表现。使用随机交叉设计，对9名耐力训练的受试者（年龄= 33±12.7岁; VO2最大值= 65.1±mL·kg -1·min -1，体脂= 7.9±2.98％）接受了含有CHO（0.65 g CHO·kg -1）或CHO + PRO（0.52 g CHO·kg -1加上0.13 g蛋白质·kg -1）以VO2 max的67％±5.4参加了1小时的试验。在7小时的恢复期内，向受试者提供的饮料含CHO（1.0 g CHO·kg -1）或CHO + PRO（0.80 g CHO·kg -1加上0.20 g蛋白质·kg -1）运动后立即以及恢复期间的1小时和4小时。然后，受试者进行了10公里的计时赛。在四种营养状况下，运动期间或运动后血糖或胰岛素含量无统计学差异。补充剂的类型或时机在10 km的表现上没有差异，这表明与单独的CHO相比，PRO + CHO的组合没有任何其他益处。

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