The Side Crunch should be the next step in your abs exercise program. There is probably no better exercise to workout the muscles along your rib cage and those at the sides of your abdomen. If these muscles are toned, then the corresponding muscles in your back will also be toned. You can remain on the floor or bench
that you used for the previous two exercises. Lie on your side with your arms holding onto the bench or a
heavy object behind you, bend your knees. In a very controlled manner, bring your knees to your chest and then lower them back to the starting position.Rotate to your other side and then repeat the movement. You should repeat this at least 15 times per side. Remember to limit your movement so that your hip flexors remain still, to increase the resistance and toning on your abs.
