The Claim

Trans men undergoing masculinizing hormone therapy with testosterone achieve complete normalization of push-up and 1.5-mile run performance compared to cisgender men within one year, with sit-up performance surpassing average male levels, indicating significant improvements in both muscular strength and aerobic endurance following treatment initiation.

Source: Effect of gender affirming hormones on athletic performance in transwomen and transmen: implications for sporting organisations and legislators

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
49score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Trans guys on testosterone get as good as average cis guys at push-ups and running in a year, and even beat them at sit-ups, showing big gains in strength and stamina.

See the scientific wording

Transmen taking masculinizing hormones show complete normalization of push-up and 1.5-mile run performance relative to cisgender men within 1 year, with sit-up performance exceeding average male levels, indicating rapid and substantial gains in both strength and endurance following testosterone therapy.

What the research says

1 study
  1. Study: Effect of gender affirming hormones on athletic performance in transwomen and transmen: implications for sporting organisations and legislators

    The study found that after one year of testosterone, transmen performed as well as or better than average men on fitness tests, just like the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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