Her trainer, Ben Bruno, said that even pro athletes struggle with this move.

Sophia Bush is best known for being an environmentalist, clean beauty advocate, and social activist.

But ICYDK, she’s also a total badass in the gym.

Tout-Sophia Bush-Ben Bruno-home workout-GettyImages-1197939604

Photo: Getty Images

That’s my reaction, too."

“You basically want a straight line from your shoulders to your knees.

Either way, he added, these will hurt in a good way, of course.

“These BURN,” Bruno shared, concluding hispost.

“So don’t say I didn’t warn you.”