SOURCE-LINKED STUDY SUMMARY
Longitudinal Changes in Competitive Performance in Elite 46,XY DSD Runners During Prolonged Testosterone Suppression.
Abstract summarized · Quality not appraised
- Studied
- A retrospective longitudinal study examined official competitive performance during prolonged testosterone suppression in elite runners with androgen-sensitive differences of sex development.
- Who / model
- The study followed elite runners with type II 5α-reductase deficiency who maintained testosterone below the stated threshold after medical or surgical suppression.
- Studied dose & schedule
- Dose and schedule have not yet been extracted for this summary.
- Found
- Competitive performance declined during suppression, averaging 6.5% across observation and remaining about 6.0% after two years, with substantial individual variation.
- Limits
- The sample was small and performance responses varied substantially between athletes.
Read summary source ↗ · Prepared 9/16/2026 · AI-assisted, source-based summary
Research findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.
Original publication ↗ · DOI: 10.1152/japplphysiol.90031.2026