THERAPEUTIC CLASS
Circulating Testosterone as the Hormonal Basis of Sex Differences in Athletic Performance
Elite athletic competitions have separate male and female events due to men’s physical advantages in strength, speed, and
endurance so that a protected female category with objective entry criteria is required. Prior to puberty, there is no sex difference in circulating testosterone concentrations or athletic performance, but from puberty onward a clear sex difference in athletic performance emerges as circulating testosterone concentrations rise in men because testes produce 30 times more testosterone than before puberty with circulating testosterone exceeding 15-fold that of women at any age.
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