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Verzamelde abstracts Medline : 1 Testosteron. Volume XIII, November 2001, Jiun Yi Chiang, Mei-Chich Hsu Graduate Institute of Sports Science National College of Physical Education & Sports, Taoyuan, Taiwan. The effects of cordyceps sinensis supplementation on endurance and strength exercises. CS (Cordyceps sinensis) is a time-honored tonic food and Chinese herbal medicine. The purposes of this study are: (1) to determine the blood levels of luteinzing hormone (LH) and testosterone after taking CS. (2) to investigate the effects of CS supplementation on metabolic substrates, respiratory compositions and endurance performance, and (3) to investigate the effects of CS supplementation and heavy-resistance training on body composition, blood biochemistry, and total maximal muscle strength. Subjects ingested 3 capsules (400 mg CS/capsule) twice a day. The results showed no significant difference of LH concentration in plasma before and after supplementation. After supplementation of CS, the testosterone increased 21.0 % for 21 days, and increased 11.5 % for 28 days as compared with the values of pre-supplementation. Four weeks of CS supplementation, the subjects tend to use free fatty acid as fuel source during the endurance exercise. However, CS supplementation may not improve submaximal endurance exercise performance in our study. Eight weeks of CS supplementation combined with heavy-resistance training could significantly increase hemoglobin level and total maximal muscle strength. 2 Uithoudingsvermogen. Medicine & Science in Sports & Exercise, 2001. Effects of Cordyceps CS-4 on endurance performance in humans: A study presented at The ACSM annual meeting, Baltimore, MD, June 2001, on elite athletes looked at the effects of Cordyceps CS-4 on endurance performance parameters. The study (which took place in Encinitas, California) concluded that supplementation with Cordyceps CS-4 extract promotes fat metabolism during prolonged exercise. Cordyceps CS-4 supplementation resulted in improved circulatory and metabolic effects during submaximal exercise in endurance-conditioned athletes. The abstract of the study which was published in the Medicine & Science in Sports & Exercise Journal, 2001, concluded that CS-4 supports normal fat mobilization and beta-oxidation, thereby preserving glycogen usage during prolonged exercise. 3 VO2-max. Medicine & Science in Sports & Exercise, 1999 Effects of Cordyceps CS-4 on VO2-max in humans: A study presented at The Experimental Biology 2001 (FASEB meeting) in Orlando, FL. (April 1, 2001) examined the effects of Cordyceps CS-4 on aerobic capacity of healthy humans. Christopher B. Cooper M.D. professor of medicine and physiology from the University of California, Los Angeles devised the study. The study was published in The Chinese Journal of Gerontology, 2001 edition. Exercise performance was tested before and after six weeks of a treatment using a symptom-limited, incremental work rate protocol on a cycle ergometer. The study, which took place in Beijing, China, concluded that after taking Cordyceps CS-4 for 6 weeks, VO2-max significantly increased while the placebo group remained unchanged. The Cordyceps administered group experienced a 6% increase in maximum oxygen uptake from 1.88 to 2.00 liters per minute. These findings support the belief that Cordyceps Sinensis CS-4 has potential for promoting aerobic capacity and resistance to fatigue. |