Just to make it very clear David Handelsman said this in 2022
Question: does testosterone suppression get rid of the natural advantage males have?
It is important to remember that what we are talking about here is the unfair advantage so the objective is to eliminate it not just reduce it. But complete testosterone suppression has now be shown in a number of studies to not to fully nullify the advantages in males, in physical advantages for up to three years.
Suppression of testosterone is partially effective. It won’t change bones. They remain longer and stronger. Haemoglobin will change, but the key things muscle, heart and lungs virtually don’t change. Or they change very little, maybe 10 - 20% reduction. But 80% of the male physical advantage remains . So it is virtually incomplete, and no where near completely reversing male unfair advantage.
More on testosterone suppression:
The key thing is whether the male physical advantage is removed over a certain time. And the answer is there is no duration which removes the unfair male physical advantage of male bodied athletes in female events. The data shows that you can get some reversal, but no where near complete and therefore there remains an unfair advantage.
This is relevant for ANY male athlete, whether it is a male with a DSD or a male with a transgender identity. Any person attempting to portray David Handelsman's opinion as being anything different, clearly has never listened to him and wishes to misrepresent what he has stated very clearly.
Why? Because since his paper in 2018 there have been numerous studies that has meant he, a world leading testosterone professor, has now got a more informed opinion,
And for the umpteenth time, the use of clear language in this discussion means that uninformed people will keep misinterpreting studies and papers because they dismiss the relevance of the evidence because they mistakenly believe that a male person with a DSD that includes virilisation of their body in any degree is still a 'female'.
They are male.
The information posted about male people with pubertal advantages applies to them just as much as a male who declares they have a transgender identity who has had any response to testosterone.