Thread by @Scienceofsport

On male vs female performance differences: we often refer to a 10%-12% male advantage in running events. But what of power/strength sports? Inspired by @mar_vickers, I plotted weightlifting’s Olympic records for men & women. Men are 26% to 39% stronger EVEN CORRECTED FOR MASS

So to explain - the left graph shows total weight lifted (snatch + C&J), right is where I’ve expressed the OR as weight lifted per kg body mass. Open circles are estimates to allow “direct” comparisons at a given men’s weight class - gap is 26% to 39%, much larger than running

Implication is that if testosterone reduction is to “equalise” performance for the sake of the integrity of women’s sport (weightlifting in this instance, as a proxy for strength/power), it must “knock out” about 30% of any advantage as a result of “biological sex” (not mass)

One last time, this time without spelling mistakes on the graphs (my bad): Men outperform women by 26% to 39% in weightlifting events, even when matched for weight class. Unless T reduction ‘weakens’ men by > 30%, an advantage will remain for Transgender women lifters