3 Thai Crunch
Sets: 4 Reps: 10 (each side)
Lie on your back with your knees up and hands behind your head, as you would for a normal crunch. Draw your belly button in and crunch off the floor and to your right, touching your right elbow to your right thigh (A). Hold for three seconds, and then lower your upper back to the fl oor. Crunch your left elbow to your left thigh and hold (B).