Prins Philip J, Goss Fredric L, Nagle Elizabeth F, Beals Kim, Robertson Robert J, Lovalekar Mita T, Welton Gary L
1Department of Exercise Science, Grove City College, Grove City, Pennsylvania; 2Center for Exercise and Health-Fitness Research, University of Pittsburgh, Pittsburgh, Pennsylvania; 3Department of Sport Medicine and Nutrition, University of Pittsburgh, Pittsburgh, Pennsylvania; and 4Department of Psychology, Grove City College, Grove City, Pennsylvania.
J Strength Cond Res. 2016 Nov;30(11):2979-2990. doi: 10.1519/JSC.0000000000001391.
Prins, PJ, Goss, FL, Nagle, EF, Beals, K, Robertson, RJ, Lovalekar, MT, and Welton, GL. Energy drinks improve five-kilometer running performance in recreational endurance runners. J Strength Cond Res 30(11): 2979-2990, 2016-The purpose of this study was to evaluate exercise performance time and related physiological and perceptual responses of recreational endurance runners after they had ingested a commercially available energy drink (Red Bull, Red Bull GmbH, Fuschl am See, Austria) containing caffeine, glucose, and taurine. Recreational endurance runners (n = 18; 13 men and 5 women; age: 20.39 ± 3.27 years; weight: 71.25 ± 17.17 kg; height: 178.00 ± 7.57 cm; V[Combining Dot Above]O2max: 55.94 ± 7.66 ml·kg·min) participated in a double-blind, crossover, repeated-measures study where they were randomized to supplement with 500 ml of the commercially available energy drink Red Bull and a noncaffeinated, sugar-free placebo (PLA) 60 minutes before completing a 5-km time trial on a treadmill, separated by 7 days. Heart rate, rating of perceived exertion (RPE) (RPE-Overall; RPE-Chest; RPE-Legs), and affect were recorded at rest, 1 hour before ingestion, at 5-minute intervals during the 5-km time trial, and immediately after exercise. Session RPE and session affect were obtained 5 minutes after completion of the 5-km time trial. The distance covered at each 5-minute interval during the 5-km time trial was recorded. Performance improved with the energy drink compared with placebo (Red Bull: 1,413.2 ± 169.7 vs. PLA: 1,443.6 ± 179.2 seconds; p = 0.016), but there were no differences in RPE, affect, session RPE, session affect, or the distance covered at 5-minute splits between the two 5-km time trials (p > 0.05). These results demonstrate that consuming a commercially available energy drink before exercise can improve 5-km performance. These results may have application for altering pre-exercise nutritional strategies in recreational runners.
普林斯，PJ，戈斯，FL，纳格尔，EF，比尔斯，K，罗伯逊，RJ，洛瓦莱卡尔，MT，以及韦尔顿，GL。能量饮料可提高业余耐力跑者的5公里跑步成绩。《力量与体能研究杂志》30(11): 2979 - 2990，2016年——本研究的目的是评估业余耐力跑者摄入一种含有咖啡因、葡萄糖和牛磺酸的市售能量饮料（红牛，奥地利福施尔湖畔红牛有限公司）后的运动表现时间以及相关的生理和感知反应。业余耐力跑者（n = 18；13名男性和5名女性；年龄：20.39 ± 3.27岁；体重：71.25 ± 17.17千克；身高：178.00 ± 7.57厘米；最大摄氧量：55.94 ± 7.66毫升·千克·分钟）参与了一项双盲、交叉、重复测量研究，他们被随机分配在跑步机上完成5公里计时赛60分钟前补充500毫升市售能量饮料红牛和一种不含咖啡因的无糖安慰剂（PLA），两次试验间隔7天。在静息状态、摄入前1小时、5公里计时赛期间每隔5分钟以及运动后立即记录心率、主观用力程度分级（RPE）（总体RPE；胸部RPE；腿部RPE）和情绪。在完成5公里计时赛后5分钟获得单次RPE和单次情绪。记录5公里计时赛期间每隔5分钟所跑的距离。与安慰剂相比，能量饮料使成绩得到提高（红牛：1413.2 ± 169.7秒 对 PLA：1443.6 ± 179.2秒；p = 0.016），但两次5公里计时赛之间在RPE、情绪、单次RPE、单次情绪或5分钟分段所跑距离方面没有差异（p > 0.05）。这些结果表明，运动前饮用市售能量饮料可提高5公里跑步成绩。这些结果可能适用于改变业余跑步者的运动前营养策略。
