A world champion, record-holding bodybuilder came out as a transgender woman this week.

Jane Marie Krock, 42, calls herself a "transgender/genderfluid Alpha male/girly girl Lesbian in a male body" on her Instagram account, OutSports reports. Though she's been posting selfies for the past year, she recently confirmed her transition to fans in a statement to the website Gymflow100.

"Being a total alpha male and transgender definitely makes me unique even in the transgender community. And of course also makes me incredibly complex as a person," she said.

"Gender identity and personality tests that I have taken in an effort to figure myself out always indicate that I am both hyper-masculine and hyper-feminine. Exactly what I need to do to be at peace with myself is something I am still not 100 percent certain of," she continued. "Transitioning is a very difficult process and even tougher at an older age (I'm 42). And living as a transgender woman that is honest about her situation is very difficult and can be dangerous.

"I am a very realistic person and I don't think the transitioning will magically solve all of my issues without creating new challenges. Whatever path I choose there will be sacrifices to be made," Krock said.

You can read the full statement here.

Krock, known for creating the "Krock Row" back workout, has not posted any photos of herself on her MattKrock Twitter account in about a year, OutSports notes. The website also points out the athlete may have had some facial reconstructive surgery in spring 2014 as part of her transition.

OutSports also reports that bodybuilders and fans were initially in disbelief of Krock's transition, linking to a bodybuilding message board of users expressing their shock.