Stability Ball Crunch
Lower back resting on the ball, feet planted; curl the shoulders up with the abs and lower with control.
How to do it
Setup
Lower back on the ball, feet planted, hands at the temples.
Steps
- Curl the ribs toward the hips.
- Keep the lower back on the ball.
- Lower until the abs stretch over the curve.
Common mistakes
Sitting all the way up: short curl, ball contact. Ball wandering: wider feet. Skipping the over-the-ball stretch: it is the ball's whole point.
Breathing
Exhale on the crunch, inhale on the stretch.
