How to do it
Inhale on the descent and exhale sharply as you pull back upright.
- 1
Sit on a stability ball with feet flat on the floor.
- 2
Place your left hand behind your head and extend your right arm down the side of the ball.
- 3
Lean to the right, sliding your right hand down the ball while keeping your left elbow pointing upwards.
- 4
Contract your left obliques to pull yourself back up to the starting position.
- 5
Complete the desired number of repetitions before switching sides.
Expert tip
Move slowly and with control, focusing on the contraction of your obliques, and keep your hips steady on the ball.
Common mistakes
- ✕Twisting forward instead of bending sideways
- ✕Dropping the raised elbow forward
- ✕Letting the feet slide outward as you lean