Dowling E A, Redondo D R, Branch J D, Jones S, McNabb G, Williams M H
Department of Health, Physical Education, and Recreation, Old Dominion University, Norfolk, VA 23529-0196, USA.
Med Sci Sports Exerc. 1996 Apr;28(4):482-9. doi: 10.1097/00005768-199604000-00013.
We investigated the effect of Eleutherococcus senticosus Maxim L (ESML) on performance during submaximal and maximal aerobic exercise. Twenty highly trained distance runners randomly assigned in matched pairs to either an experimental (ESML) or placebo (PL) group, participated in an 8-wk double-blind study during which they completed five trails of a 10-min treadmill run at their 10 km (10K) race pace and a maximal treadmill test (T(max)). Following a baseline trail, ESML and PL consumed, respectively, 3.4 ml of ESML extract or placebo daily for 6 wk. Subjects were tested every 2 wk during supplementation and 2 wk following withdrawal. Heart rate (HR), oxygen consumption (VO2), expired minute volume (VE), ventilatory equivalent for oxygen (VE/VO2), respiratory exchange ratio (RER), and rating of perceived exertion (RPE) were measured during the 10K and T(max) tests. Resting, post-10K and post-T(max) blood samples were analyzed for serum lactate. No significant differences were observed between ESML and PL for: HR, VO2, VE, VE/VO2, RER, or RPE; T(max) time to exhaustion; or serum lactate. The data do not support an ergogenic effect of ESML supplementation on selected metabolic, performance, or psychologic parameters associated with submaximal and maximal aerobic exercise tasks.
我们研究了刺五加（Eleutherococcus senticosus Maxim L，ESML）对次最大强度和最大强度有氧运动表现的影响。20名训练有素的长跑运动员被随机配对分为实验组（ESML）或安慰剂组（PL），参与了一项为期8周的双盲研究，在此期间，他们以10公里（10K）比赛配速完成了5次10分钟的跑步机跑步试验以及一次最大跑步机测试（T(max)）。在进行基线试验后，ESML组和PL组分别连续6周每天服用3.4毫升ESML提取物或安慰剂。在补充期间每2周对受试者进行一次测试，并在停药后2周进行测试。在10K和T(max)测试期间测量心率（HR）、耗氧量（VO2）、每分钟呼气量（VE）、氧通气当量（VE/VO2）、呼吸交换率（RER）和主观用力程度分级（RPE）。对静息、10K后和T(max)后的血样进行血清乳酸分析。ESML组和PL组在以下方面未观察到显著差异：HR、VO2、VE、VE/VO2、RER或RPE；T(max)的疲劳时间；或血清乳酸。这些数据不支持补充ESML对与次最大强度和最大强度有氧运动任务相关的选定代谢、表现或心理参数具有促力作用。
