If you want to develop a stronger, firmer core, you need to train all the muscles of your abdomen. Oblique crunches target the muscles that run along the side of your waist.
Try them today. Here’s how:
Start by lying on your right side with your right forearm on the ground, your legs straight, and your left arm resting on the side of your body.
Engage your abs (imagine pulling your navel toward your spine) and extend your left hand as you lift your legs off the ground to bring your toes toward your hand. (You don’t have to actually touch your hand to your feet; it’s the motion of bringing them closer together that’s important.)
Do 10 oblique crunches on this side before rolling over to your left side and repeating the motion, reaching your toes toward your right hand.
Article from the StayWell Company, LLC