Air Twisting Crunch

Instructions

1. Lie on your back with knees bent and feet flat, hands lightly behind your head.
2. Crunch your upper back off the floor and rotate your torso to one side.
3. Hold briefly at the peak contraction, then lower back to the start.
4. Alternate the rotation side each rep.
5. Focus on rotating from the waist rather than pulling on the neck.