- Lay on the floor and place your heels on a Swiss ball.
- Either keep your legs straight, or place a slight bend at the knee if it’s more comfortable.
- Crunch up by squeezing your abs HARD. Add a pause at the top position for an even better contraction.
- Start breathing out just before you start the rep. When you get to the top of the rep, you’ll get a much better abs contraction!