Danielle Loughrey Profile picture
May 22 14 tweets 32 min read Twitter logo Read on Twitter
Here is a peer reviewed scientific publication, which you must have missed @LadiesFootball when 'consulting' on your Transgender Policy.
Circulating Testosterone as the Hormonal Basis of Sex Differences in Athletic by Handelsman, Hirschberg, and Bermon
academic.oup.com/edrv/article/3…
"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."
"From male puberty onward, the sex difference in athletic performance emerges as testosterone concentrations rise as the testes produce 30 times more testosterone than before puberty, resulting in men having 15 to 20 fold greater testosterone than children or women at any age."
"Sports are segregated into male and female competitions. The main justification is to allow women a chance to win, as women have major disadvantages against men who are, on average, taller, stronger, and faster and have greater endurance due to their larger, stronger muscles...
...and bones as well as a higher circulating haemoglobin level. Hence, female competition forms a protected category with entry that must be restricted by an objective eligibility criterion related, by necessity, to the relevant sex-specific physical advantages."
#SaveWomensSports
"Where are the articles highlighting the absurdity, unfairness, and huge physical danger, as scientifically proven, of men competing in women's categories?" @EwanMacKenna
Well, where are they? @IrishSunSport @IrishTimes @irishexaminer @irish_news

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More from @DLoughrey83

May 25
Here is another peer reviewed scientific publication, which you must have missed also @LadiesFootball when 'consulting' on your Transgender Policy.
Handelsman DJ, Sikaris K, Ly LP. Estimating age-specific trends in circulating testosterone and sex hormone-binding globulin...
...in males and females across the lifespan. Ann Clin Biochem. 2016 May;53(Pt 3):377-84. doi: 10.1177/0004563215610589. Epub 2015 Oct 5. PMID: 26438522.
doi.org/10.1177/000456…
"Puberty increases in serum testosterone in males peakig at 20 years old & remaining stable thereafter until the eighth decade. In females, circulating testosterone peaked in late adolescence and declined gradually over the next two decades."
Women are not a testosterone level!
Read 12 tweets

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