So women are coasting?
Gosh yes. The transformation of performance by young women in the recent Winter Olympics (snowboarding, the ski events) is blatant evidence of the coasting - what with them using manoeuvres that women weren't even doing 3 years ago.
And don't get me started on the performance of those layabout women who recently set canoeing records (i.e., for anyone, not just the women) in the Devizes-Westminster event.
Nonetheless, as Dr Fond of Beetles says:
Male puberty and testosterone. Testosterone, the androgen driving male physical development, is a wonderful hormone. It is responsible for advantageous skeletal features that develop during male puberty, such as increased height, increased bone size and density, longer limbs, wider hand spans and a narrower pelvis, all of which make a 100m sprint or a slam dunk far easier. It also directs hugely increased muscle building capacity, allowing higher absolute masses to be achieved in shorter training times, mass which, by the way, contains a higher proportion of fast twitch fibres (responsible for explosive power) than observed in female muscles. To support this superior physicality, males have greater lung capacity, a higher VO2 max (the amount of oxygen consumed during high intensity exercise), a bigger heart with faster stroke rate and higher levels of haemoglobin, and thus can oxygenate their muscles more efficiently.
...
Males are better (at sports, at least). Males are faster. Males are stronger. The performance gap between male and female athletes is utterly astounding; it’s not a “gap”, it’s the Grand Canyon. Without sex-segregated sporting categories, the most wonderful 10.49s that female athletics has ever seen would be a footnote in history. We owe it to the female sports stars of today and to the girls who aspire to be tomorrow’s sporting heroes to fight for their right to take home gold.
fondofbeetles.wordpress.com/2018/10/01/harder-better-faster-stronger-why-we-must-protect-female-sports/