Opinion | The Olympic committee studied trans athletes. Conservatives won't like what it found.

A groundbreaking study that was sponsored by the International Olympic Committee and released late last week sought to compare a range of athletic abilities between trans athletes and their cisgender counterparts. The finding that trans women athletes are at a relative disadvantage in many key physical areas relating to athletic ability and perform worse on cardiovascular tests than their cisgender counterparts could be the first step in fighting back against the conventional wisdom conservatives have spread that trans women’s participation is inherently unfair.

Over the last several years, few anti-LGBTQ policies have taken off as quickly within mainstream politics as those banning trans women and girls from women’s and girls’ sports. Prompted by the success of trans college swimmer Lia Thomas, who won a national championship during her senior year, dozens of conservative states and sports administrators rushed headlong into outright bans on trans women’s rights to participate equally in sports.

The political argument seemed simple; natural, even. We all know men are superior athletes to women, conservatives argued, so allowing trans women to compete with women would be inherently unfair. Because it felt like common sense to a lot of people, it made for a compelling political argument.

But the study that the IOC commissioned, and the University of Brighton conducted, found that while trans women are stronger in some respects, like grip strength, cis women have stronger lower bodies. The study also found that trans women have a similar bone density as their cis women counterparts, which rebuts a frequent refrain from conservatives who’ve argued otherwise to justify banning trans girls and women from sports.

All the participants in this study participated in competitive sports or took part in physical training at least three times a week. The 35 trans athletes had to have completed at least one consecutive year of hormone replacement therapy.

It’s just one study, so we should avoid drawing grand conclusions from it, but, at the very least, the study shows that the bodies of trans women who’ve been on at least one year of hormone replacement therapy are very, very different from cis men’s bodies. In their conclusion, researchers cautioned against hurdling into blanket bans on trans women’s participation in women’s sports and declared that using data comparing cis men and cis women’s bodies to justify these bans is wrong. It has become commonplace for anti-trans campaigners to make arguments against trans participation in sports by citing the difference between cis men’s and cis women’s bodies; in other words, pretending that trans women’s bodies are identical to those of cis men’s.

We need more study on this issue, but at the very least, this should be a warning to legislators and sports administrators who want to make decisions based on data not to rush to appease transphobic people who’ve been fomenting a panic over this issue.

Conservatives, however, show no sign of slowing down in their persecution of trans athletes. Just this week, the conservative crusade against trans athletes reached a new low as Oklahoma state athletic officials proposed punishing All Elite Wrestling for featuring a trans woman in its women’s division during a show held in Oklahoma City. That’s professional wrestling … where the outcomes are predetermined and scripted.

Now they’re saying we have no right to even be in fake sports.

Again, the report commissioned by the IOC is just an initial study, and we will need more, but it indicates that there is more to the trans athlete issue than conventional wisdom would seem to indicate. It’s also a vindication for the many trans athletes, writers and advocates who’ve spent a lot of time and effort trying to explain to general audiences that trans bodies differ greatly from cisgender bodies.

Then again, the trans athlete debate has never really been about fairness or safety in women’s sports. It’s always been about putting laws on the books that legally define trans women as men as a precedent for passing more anti-trans laws unrelated to sports. So this research will likely not make a difference in red state legislatures.

Our hope, then, is for those sport administrators who’ve gone all in on trans bans to see that science is showing their assumptions and arguments to be wrong. Participating in sports is a human right. It breeds healthy habits and fosters ambition and drive in young people. Denying that to groups of kids, teens and even adults should require much more evidence than the anti-trans crowd has presented thus far.

We’re in the early days of the developing scientific field around sports, gender and performance, but the first win goes to those who argue that trans women belong.

This article was originally published on MSNBC.com