How to do it
Drive your bottom forearm downward to anchor your torso.
- 1
Lie on your side with your legs together and knees slightly bent.
- 2
Place your lower arm on the ground for support and your upper hand behind your head.
- 3
Crunch your obliques to lift your shoulder off the ground towards your hips.
- 4
Lower back down with control to the starting position.
- 5
Complete the desired number of repetitions before switching to the other side.
Expert tip
Avoid pulling on your neck with your hands; instead, focus on contracting your oblique muscles to perform the crunch.
Common mistakes
- ✕Rotating the chest toward the ceiling
- ✕Lifting the legs off the floor mid-crunch
- ✕Craning the chin toward the chest