Effect of Cs-4 (Cordyceps sinensis) on Exercise Performance in Healthy Older Subjects: A Double-Blind, Placebo-Controlled Trial
Chen S, Li Z, Krochmal R, Abrazado M, Kim W, Cooper CB
Published in Journal of Alternative and Complementary Medicine
Methodology
Twelve-week double-blind placebo-controlled RCT of Cs-4 (fermented Cordyceps sinensis) 333 mg three times daily in 20 healthy adults aged 50-75 undergoing incremental cycle testing.
Key Findings
Metabolic and ventilatory thresholds improved significantly in the Cs-4 group versus placebo, while VO2max and peak power did not differ.
Conclusions
Cs-4 may improve submaximal exercise capacity in older adults; maximal aerobic capacity appears unchanged.
Limitations
Very small sample; single proprietary fermented product; short duration.
Supplements Studied
Metabolic and ventilatory thresholds improved significantly in the Cs-4 group versus placebo, while VO2max and peak power did not differ.
Outcomes Measured
Metabolic and ventilatory thresholds improved significantly in the Cs-4 group versus placebo.
Cordyceps improved metabolic and ventilatory threshold measures but did not significantly change maximal oxygen uptake
Study Details
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