re: the IAAF vs the court for arbitration in sport. It looks like there is a now a new study to show what we basically already knew - that testosterone has a significant impact on performance:
https://www.theguardian.com/sport/2...undertake-hormone-therapy-for-future-olympics
Bit unfortunate that the CAS made such a stupid ruling in the first place leading to the utter farce that was the 800m final in Rio... there were rather obvious questions raised about all three medalists in that event and unsurprisingly the women placed 4th-6th were rather gutted, GB athlete Lynsey Sharp then got slated by some sections of the media for her comments.
https://www.theguardian.com/sport/2...undertake-hormone-therapy-for-future-olympics
Caster Semenya, the Olympic 800m champion, may be banned from competing at future Games unless she undergoes hormone replacement therapy (HRT) or even surgery in the wake of a landmark study into athletes with raised testosterone levels which has just been published.
The International Association of Athletics Federations, the world governing body, commissioned research which has produced the most conclusive evidence yet that female athletes with very high levels of naturally occurring testosterone receive significant performance-enhancing benefits in competition.
[...]
Researchers measured blood testosterone levels in 1,332 female athletes competing across 21 track and field disciplines at the 2011 and 2013 world championships. Those with the highest levels of testosterone demonstrated significant advantages over those with the lowest levels – notably in the 400m (2.7% faster), the 400m hurdles (2.8% faster), the 800m (1.8% faster), the hammer throw (4.5% longer) and in the pole vault (2.9% higher).
Although these margins appear small, at the highest level a performance boost of a few percentage points might mean the difference between winning gold and missing out on a medal.
Bit unfortunate that the CAS made such a stupid ruling in the first place leading to the utter farce that was the 800m final in Rio... there were rather obvious questions raised about all three medalists in that event and unsurprisingly the women placed 4th-6th were rather gutted, GB athlete Lynsey Sharp then got slated by some sections of the media for her comments.