Weighted Crunch

The Weighted Crunch is a variation of the classic crunch exercise that involves adding resistance (a weight) to increase the intensity of the abdominal work.

1. Lay down
2. (Optional) Bend your knees to add difficulty
3. (Optional) Bend your knees and let your feet rest on a bench or a box or something (90 degree angle on knees)
4. Lift your head and torso while bending your back forward (if you don't it's a sit-up and also involves some back muscles). The higher you go, the more you should feel your abs contracting.
5. Go back to starting position an repeat