A Study on the Effect of Cordyceps militaris on Fatigue Recovery after High-intensity Exercise


Yun, Young-jo

Department of Physical Education

Graduate School of

Sejong University

 The purpose of this study was to identify the effect of Cordyceps militaris on anti-fatigue and recovery from fatigue by analyzing both the difference and changes in maximal exercise duration time and respiratory factors and the difference and change in blood factors in accordance with the dosage of Cordyceps militaris and placebo. Maximal oxygen uptake(VO2max) was measured by conducting the graded exercise test for 9 healthy male college students within the age range of 19 to 23 years. Then, the target exercise load was set at 75% VO2max for the purpose of the cross-test between the dosage of Cordyceps militaris and placebo. As the dosage of Cordyceps militaris, they were asked to drink the beverage of about 300ml of Cordyceps militaris diluted at the concentration of 6-10% after extracting the undiluted solution from the Cordyceps mililtaris of 50mg/kg. And they were asked to drink about 300ml of barely tea as the placebo. They were asked to slowly drink the dosage of Cordyceps militaris and the placebo one hour before the exercise time, measured at rest for 20 minutes, practiced the exercise at the target work load for 20 minutes, took a rest for 5 minutes and kept on exercise until exhaustion. Then the test was completed after they asked to have the 15-minute recovery period. In the process of the test, their blood(totaling 7 times) was sampled after measurement at rest, after the target work load for 20 minutes, after the 5-minute rest, after exhaustion, and after 5, 10 and 15 minutes in the recovery period, respectively.

 The observation factors included the maximal exercise duration time and such respiratory factors as oxygen uptake, hart rate, ventilatory volume respiratory exchange ratio and the like. The difference and changes in lactic acid and glucose were observed as the blood factor. Data obtained during load work were analyzed for the maximal exercise duration time and the respiratory factors. Each 40? of blood was sampled seven times from the finger tips of the male college students in relation to the blood factor.

The findings were obtained as follow:

 First, the ingestion of Cordyceps militaris might have a statistically significant effect on the exercise duration time(p>.05), but male college students showed the prolonged exercise duration time when Cordyceps militaris were administered to the male college students.

 Second, the ingestion of Cordyceps militaris had an effect on the respiratory exchange ratio, one of the respiratory factors, but it did not have an impact on the oxygen uptake, heart reat and respiratory volume.

Third, the ingestion of Cordyceps militaris had and effect on the change in such blood factors as lactic acid and glucose and showed the interactional effect with them. But it was found that there was a significant difference between two methods of treatment by time.

 In conclusion, the ingestion of Cordyceps militaris showed a positive effect on recovery from fatigue in spite of the drawback of their single oral dosage, which implies that the long dosage of Cordyceps militaris would have an remarkable effect on recovery from fautigue. Likewise, it is thought material for exercise, on which a study will have to continue being conducted in the future.


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