Cordyceps sinensis is a potentially ergogenic herb that gained popularity after the Chinese women's team credited it for their world-record performances at the 1993 World Track and Field Championships. Since then, a few peer-reviewed investigations have been published, but results of these investigations have been equivocal, with two human studies claiming an ergogenic effect and three human studies failing to find an effect. At this time, it is premature to conclude that Cordyceps sinensis does or does not possess ergogenic properties.
Thomas B. Walker is a doctoral student in exercise physiology at the University of New Mexico.
© 2006 National Strength and Conditioning Association