How to do it
Keep your feet flat on the floor and your knees stacked over your hips.
- 1
Lie on your back with your knees bent and hands behind your head.
- 2
Lift your shoulders off the floor and twist your torso, bringing your right elbow towards your left knee.
- 3
Return to the starting position and repeat on the opposite side, bringing your left elbow towards your right knee.
Expert tip
Exhale as you crunch and twist, focusing on contracting the oblique muscles rather than pulling with your neck or arms.
Common mistakes
- ✕Raising the entire torso instead of twisting
- ✕Letting the lower back arch off the floor
- ✕Bouncing between sides without pausing