ROMAN CHAIR CRUNCH

Sit facing up on a back extension bench so that your shins are touching the ankle pads and your butt is on the bench. Extend back at the hips until your torso is below parallel with the floor and then crunch up as high as possible. Slowly lower back down and repeat for reps.Focus on getting a good stretch in the abs in the start position, which will make for a stronger contraction of the abs. Add resistance by holding a weight plate on your chest.