Morris A C, Jacobs I, McLellan T M, Klugerman A, Wang L C, Zamecnik J
Defence and Civil Institute of Environmental Medicine, North York, ON, Canada.
Int J Sport Nutr. 1996 Sep;6(3):263-71. doi: 10.1123/ijsn.6.3.263.
The purpose of this study was to examine the effects of ginseng extract ingestion on physiological responses to intense exercise. Subjects performed a control ride (CN) on a cycle ergometer, followed by placebo (PL) and ginseng (GS) treatments. Ginseng was ingested as 8 or 16 mg/kg body weight daily for 7 days prior to trial GS. Venous blood was sampled for FFA, lactate, and glucose analyses. Due to similar findings for both dose groups, the subjects were considered as one group. Lactate, FFA, VO2, VE, and RPE increased significantly from 10 through 40 min. RER increased during the first 10 min of exercise and then remained stable, with no intertrial differences. Glucose did not vary significantly from 0 to 40 min or among treatments. RPE was significantly greater and time to exhaustion was significantly less during trial CN than PL or GS, while PL and GS trials were similar. The data indicated that with 1 week of pretreatment there is no ergogenic effect of ingesting the ginseng saponin extract.
本研究的目的是检验摄入人参提取物对高强度运动生理反应的影响。受试者在自行车测力计上进行一次对照骑行（CN），随后进行安慰剂（PL）和人参（GS）处理。在试验GS前7天，每天按8或16毫克/千克体重摄入人参。采集静脉血进行游离脂肪酸（FFA）、乳酸和葡萄糖分析。由于两个剂量组的结果相似，受试者被视为一组。从运动10分钟到40分钟，乳酸、FFA、摄氧量（VO2）、每分通气量（VE）和主观用力程度（RPE）显著增加。呼吸交换率（RER）在运动的前10分钟增加，然后保持稳定，各试验间无差异。葡萄糖在0至40分钟内或各处理间无显著变化。在试验CN期间，RPE显著更高，疲劳时间显著短于PL或GS试验，而PL和GS试验相似。数据表明，经过1周的预处理，摄入人参皂苷提取物没有增强运动能力的作用。
