近年來，增進運動員體力的營養增補為運動科學專家所認同，各國均在積極開發，刺五加即是其中之一，如能有效的攝取，將有助於運動表現。目的：本研究旨在探討補充刺五加4週對柔道運動員運動能力的影響。方法：以柔道運動員18人為受試者分為兩組，刺五加組（服用刺五加1500 mg/day），安慰劑組（服用等量安慰劑）。實驗期間對受試者施以4週之柔道訓練，分析受試者服用前與4週後之心肺耐力、爆發力、最大肌力、並以划船器進行5分鐘上肢間歇肌耐力等運動能力測試。結果：VO2 max及最大換氣量方面均呈現顯著訓練效應，安慰劑組及刺五加組後測皆顯著高於前測，但無顯著組間效應。肌耐力作功指數在第1、3、15階段的訓練效應達顯著差異，疲勞指數在第3、4、5、6、9、10階段的訓練效應達顯著差異，刺五加組後測高於前測，並在第3階段達顯著組間效應。其餘下肢最大肌力、爆發力在訓練效應及組間效應皆未達顯著差異，結論：柔道運動訓練顯著增加心肺耐力，補充刺五加對心肺能力、爆發力、下肢最大肌力以及肌耐力等運動能力並無顯著的影響。

In recent years, the nutrition supplements for increasing the physical power of athlete is recognized by the scientific experts of sports, which are developed in many countries aggressively, and Ciwujia is one of them. If it can be taken effective, the athletic performance will be helpful. Purpose: The purpose of this study is to investigate the influence of supplementing Ciwujia for 4 weeks on the athletic ability of judo athlete. Method: The subjects of 18 judo athletes are divided into two groups, such as Ciwujia group (taking Ciwujia 1500 mg/day), placebo group (taking the equivalent amount of placebo). Carry on four-week judo training for the subjects during the experimental period. Before and after four-week experiment, analyze the heart and lung endurance, explosive power, maximum muscular power, and use rowing machine to carry on 5-minute intermittent muscular endurance of upper limbs. Result: The significant training effect is appeared for VO2max and maximum air exchange amount. The value after the experiment is greater than the value before the experiment significantly for both Ciwujia group and placebo group, but there is no significant inter-group effect. There is significant difference on muscular endurance index at training stage 1, 3, and 15, and there is significant difference on fatigue index at training stage 3, 4, 5, 6, 9, and 10. The value after the experiment is greater than the value before the experiment significantly for Ciwujia group, and there is significant inter-group effect at stage 3. There is no significant difference on maximum muscular power and explosive power of lower limbs and inter-group effect before and after the experiment. Conclusion: During the judo training, the supplement of Ciwujia can increase heart and lung endurance significantly, but there is no significant influence on the athletic ability, such as heart and lung power, explosive power, maximum muscular power of lower limbs and muscular endurance etc.