Boosting testosterone levels significantly improves female athletic performance, according to one of the first randomised controlled trials.
The findings come as the International Association of Athletics Federations (IAAF) announced on Monday it would impose an upper limit for testosterone levels on trans female athletes competing in middle-distance events.
Testosterone was assumed to be performance-enhancing and a factor in explaining differences in strength and endurance between men and women. However, there was a surprising lack of evidence on the impact of testosterone in women and the question had become mired in controversy following a series of rulings in professional sport.
The latest research confirmed that testosterone significantly increases endurance and lean muscle mass among young women, even when given for a relatively short period.
I’m sure we did you know. Either that or the East Germans were not winning all those gold medals.