treatment and then tranz back.

https://www.theguardian.com/sport/2019/sep/24/ioc-delays-new-transgender-guidelines-2020-olympics

"Under the current IOC guidelines, issued in November 2015, athletes who transition from male to female can compete in the women’s category without requiring surgery to remove their testes provided their total testosterone level in serum is kept below 10 nanomoles per litre for at least 12 months....the emerging findings from the Karolinska Institute in Sweden, which show that testosterone suppression for transgender women has little effect on reducing muscle strength even after a year of treatment. That indicates that at least some of the physical advantages of those who have gone through male puberty are maintained even after transitioning...."