The stigma attached to the treatment based on a 2002 study has been hard to shake.

Fame and fortune are two obvious benefits of being a celebrity, but the one perk I’m most envious of? How much time celebs get to work out for their jobs—and how they’re able focus on building some serious strength. Case in point: the recent videos showing actors Jessica Biel and Alison Brie knocking out several impressive reps of L-sit chin-ups.

In an Instagram clip posted by Brie, the actor (most known for her work on the TV series Glow and Community) can be seen holding onto gymnastic rings and pulling her entire body up several inches off the ground while maintaining an L-sit posture. In one video, Brie performs the move while squeezing a yoga block between her knees; in another, she’s balancing a hefty medicine ball on her thighs.

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A post shared by Alison Brie (@alisonbrie)

“I see you @jessicabiel,” Brie wrote in her Instagram caption, with the hashstag “#inspo.” Last month, actor Jessica Biel shared an Instagram video of herself doing the same super-human move with her husband, Justin Timberlake.

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