How to do it
Plant your feet flat and shoulder-width apart for a stable base.
- 1
Sit on the stability ball and walk your feet forward, letting the ball roll beneath your lower back.
- 2
Place your hands lightly behind your head, elbows flared.
- 3
Tuck your chin slightly and contract your abs to lift your upper body up, curling towards your hips.
- 4
Slowly lower back down to the starting position.
- 5
Repeat for the desired number of repetitions.
Expert tip
Ensure that the ball is properly inflated and stable. Focus on contracting your abs to lift your torso rather than pulling with your hands or neck.
Common mistakes
- ✕Dropping the hips during the crunch
- ✕Rolling too far up off the ball
- ✕Using momentum to bounce up from the ball