How to do it
Press your lower back flat against the floor the entire time.
- 1
Lie on your back with your hands behind your head and legs raised straight up.
- 2
Lift your shoulders off the ground and twist your torso as you bring your right elbow towards your left knee.
- 3
Lower back down and then twist to the other side, bringing your left elbow towards your right knee.
- 4
Alternate sides for the desired number of repetitions.
Expert tip
Keep the movement controlled and focus on using your abs to twist rather than momentum, to maximize engagement of the oblique muscles.
Common mistakes
- ✕Dropping the raised legs toward the floor
- ✕Rocking the hips from side to side
- ✕Tucking the chin tight to the chest