This is a very simple, highly effective exercise that is almost never used. The Iron Inch isolates the lower abdominal region.
How to do:
1. Sit on the floor, legs together, stretched out in front of you.
2. Keep your back erect and clasp your hands behind your
head.
3. Using the power of your abs and hips try to inch across the
floor for a distance of 10 feet. Do not bend your knees or get
your back or arms into the movement.
4. Using your lower abs move your right hip and then your left
hip and inch. Continue until you reached 10 feet or cannot
move further.
5. Rest 90 seconds and repeat this movement backwards to
your starting spot.
6. After you have mastered this exercise place a weight in your
lap for greater resistance.