Kirsti Miller
@kirstimiller30.bsky.social
4K followers 1.5K following 13K posts
Australian Sports Trailblazer, dual International World Champion athlete, researcher & educator within sport regarding diversity, inclusion, acceptability and the broader issues of sport
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kirstimiller30.bsky.social
🌎Boxing claim that the SRY gene is a reliable indicator for determining biological sex & sports advantage. There is no scientific evidence linking this gene & or endogenous T to athletic performance.

Even the discoverer of the SRY gene admits it cannot be used to determine biological sex.
kirstimiller30.bsky.social
Anyone that thinks @WorldAthletics sex testing is simple, I suggest go talk to @MightyCaster

To evaluate the effects of involves measuring & palpating the clitoris, vagina & labia, as well as evaluating breast size & pubic hair scored on an illustrated 5-grade scale.
a person is holding a metal object in their hands .
ALT: a person is holding a metal object in their hands .
media.tenor.com
kirstimiller30.bsky.social
IF governments are serious about regional recovery, they need to stop using the Murray–Darling Basin as a political football — and start rebuilding the industries they helped dismantle.

Every megalitre taken out takes another job, another family, another small business.
kirstimiller30.bsky.social
MOMENTS: The best things in life are not things they are MOMENTS
kirstimiller30.bsky.social
This pic of my daughter Kirby in 2006 just weeks after my gender confirmation surgery.
Kirby said to me she would never leave me until I became a lady.

Kirby became my mentor a big sister at first. She taught me how to be a lady.

The 2nd photo is a copy of a message Kirby sent me last week❤️
kirstimiller30.bsky.social
Your courage is a powerful inspiration, Sister, and sharing your story will undoubtedly uplift and motivate countless individuals.
kirstimiller30.bsky.social
Jane I am deeply moved by your resilience as a trans child who faced torture. Witnessing the profound love between you and your wife is a truly breathtaking sight, one that I consider the most beautiful phenomenon I have encountered in my life.
kirstimiller30.bsky.social
Gender strength differences are quantitative rather than qualitative.

Although 👨‍🦰 usually have larger muscles than 💁, the force exerted by equal-sized muscles is the same in both genders.

Muscle tissue is essentially the same regardless of gender.

brzycki.scholar.princeton.edu/sites/g/file...
brzycki.scholar.princeton.edu
kirstimiller30.bsky.social
I am 5'8", & 63 kgs with a BMI of 21 & Beyonce is 5'6", & 60 kgs with a BMI of 21.

That makes us both Beyonce & me well within the "normal" range.
kirstimiller30.bsky.social
FACT ~ We live in a world where being labelled a racist, homophobe, transphobe, fascist or bigot is widely regarded as more egregious than being the victim of racism, homophobia, transphobia, bigotry or fascism.

youtu.be/PCbnyoDqE7o?...
AMAZING LBC Caller, BEST Call Of The Week?
YouTube video by Daily Blasé
youtu.be
kirstimiller30.bsky.social
You should hook up with J Harper to record your performances.
Reposted by Kirsti Miller
kylora2112.bsky.social
6 months of HRT took 7 MPH/20% off my candlepin bowling speed (from 35 MPH to 28 MPH) with the same technique.
kirstimiller30.bsky.social
MAGA, prior to being transphobic they were homophobes, before, that they were racists, before that sexists before that - whoever it's trendiest & most socially acceptable to be hateful towards at the moment & they're usually still all of those things anyways & not even secretly.
kirstimiller30.bsky.social
Gender clinic waiting times are ‘disappointing but unsurprising’.
➡️ bit.ly/48RKFvn
kirstimiller30.bsky.social
I believe it's ultimately a question of how long that treatment should be for each sport; however, data must do the talking for me.
kirstimiller30.bsky.social
Trans women do not equate to c1s men in either physiological or performance terms.

I firmly believe testosterone suppression coupled with estrogen supplementation is the best way to make decisions for the eligibility of the female category of sport.
kirstimiller30.bsky.social
Trans women are physiologically different from men even before the onset of GAHT, hence I believe the basis of any blanket ban policy is flawed.
kirstimiller30.bsky.social
This results in what we call reduced fat-free mass. Fat provides resistance for movement, as opposed to a muscle, which provides torque for movement. Consequently, the more fat-free mass someone has, the better athlete they are likely to be — independent of sex or skill level.
kirstimiller30.bsky.social
Additionally, estrogen supplementation greatly increases the total body fat percentage in trans women (20 to 34%) increase in just the first 12 months.
kirstimiller30.bsky.social
While GAHT cannot shrink bones, suppressed testosterone does result in reduced bone mineral density, reduced muscle mass, reduced strength, it inhibits the ability to build as much muscle as those who have normal concentrations of testosterone.
kirstimiller30.bsky.social
With the reduction of the oxygen-carrying hemoglobin in 🩸 to cis F levels after around 3m of GAHT, & a trans woman's body will be significantly underpowered.

Trans women have less delivery of oxygen to their working muscles which produces a higher rate of metabolites & results in muscle fatigue.
kirstimiller30.bsky.social
FACT~ Sex is dynamic, things like genitalia can be changed.

Physical performance is also dynamic, it's not set at birth or puberty.

For example it only takes trans woman and trans men 3 months to attain sis levels of hemoglobin.

www.transresearch.org.au/post/trans-w...
Trans Women in Sport: What Does the Science Say?
Research suggests trans women have minimal to no performance advantage over cisgender women.
www.transresearch.org.au
kirstimiller30.bsky.social
When sports determine the fairness of a disabled athlete's right to compete in the able bodied category the disabled athlete rightly so gets assessed on a case-by-case basis.

A case-by-case approach is a must for trans athlete's, they are just as diverse as disabled athletes!
kirstimiller30.bsky.social
Here is @RogerPielkeJr
Making Complete Sense of the Debate Over Transgender Athletes👏👏

I agree with Roger.

Athletes cis or trans should be looked at individually & holistically, that they are a sum of all their advantages & disadvantages which result in performance.

youtu.be/2-ohQiLWWwA?...
Roger PielkeJr Making Complete Sense of the Debate Over Transgender Athletes.
YouTube video by Kirsti Miller30
youtu.be
kirstimiller30.bsky.social
Here is @RogerPielkeJr
Making Complete Sense of the Debate Over Transgender Athletes👏👏

I agree with Roger.

Athletes cis or trans should be looked at individually & holistically, that they are a sum of all their advantages & disadvantages which result in performance.

youtu.be/2-ohQiLWWwA?...
Roger PielkeJr Making Complete Sense of the Debate Over Transgender Athletes.
YouTube video by Kirsti Miller30
youtu.be
kirstimiller30.bsky.social
It is the disparity in size/strength, speed & physique that is relevant, not the source of the disparity. Assessing any group of athletes as a monolithic group especially amongst trans athletes is deeply flawed. Trans is an umbrella term many different body types & stages of transition.
kirstimiller30.bsky.social
Under these guidelines all trans women are eligible to compete in women’s Community Football competitions, with a clear process to address any unacceptable safety risks to either the trans player or other players.