Explosively sit up, bringing right knee toward chest, right arm back, and left arm forward at a 90-degree angles. Reverse the motion with control and repeat on the other side. That's 1 rep.

Whether you outright loathe doing a sit-up or you are simply looking to freshen up your ab workouts in 2025, here is a six move workout that doesn't involve any sit-ups and only takes 12 minutes ...