Seated Corkscrew

To do this abs and obliques exercise, start with your hands back behind your body and bring your knees in and across, really trying to contract the obliques. Then extend your legs back out to starting position and repeat toward the opposite side of the abs. Beginners might find that they can’t even get through the first 45 seconds of this challenging reverse crunches variation. That’s ok because it gives you a place to start and something to improve upon.