
Taboo Science Trans 101: Trans Athletes & What the Science Actually Says
Feb 5, 2026
Chris Mosier, elite triathlete and transgender activist, and Blair Hamilton, sports medicine researcher specializing in trans athletic performance, join to unpack the actual studies. They discuss how few athletes are affected, how transition changes some performance measures but not others, and why policy needs sport-specific evidence. The conversation highlights harms of bans and the political playbook targeting trans inclusion.
AI Snips
Chapters
Books
Transcript
Episode notes
Research Base Is Extremely Limited
- The evidence base on trans athletes is tiny: only five lab studies covering 43 trans women inform broad policy claims.
- That small, mixed dataset cannot justify sweeping bans or claims of 'settled science.'
Transition Changes Abilities Unevenly
- Hormone transition changes performance unevenly: trans women can retain some strength yet lose jumping power and endurance.
- Trans men may gain cardiorespiratory advantages and sometimes outperform cis men in endurance tests.
Elite Athlete Turned Advocate
- Chris Mosier described being an elite trans athlete: Team USA member and five-time men's national champion.
- He used his platform to found resources like TransAthlete.com to support inclusion in sports.


