Article TextOriginal researchEffect of gender affirming hormones on athletic performance in transwomen and transmen: implications for sporting organisations and legislatorsObjective To examine the effect of gender affirming hormones on athletic performance among transwomen and transmen.Methods We reviewed fitness test results and medical records of 29 transmen and 46 transwomen who started gender affirming hormones while in the United States Air Force. We compared pre- and post-hormone fitness test results of the transwomen and transmen with the average performance of all women and men...…Article TextOriginal researchEffect of gender affirming hormones on athletic performance in transwomen and transmen: implications for sporting organisations and legislatorsObjective To examine the effect of gender affirming hormones on athletic performance among transwomen and transmen.Methods We reviewed fitness test results and medical records of 29 transmen and 46 transwomen who started gender affirming hormones while in the United States Air Force. We compared pre- and post-hormone fitness test results of the transwomen and transmen with the average performance of all women and men...WW…