How to do it
Raise only your shoulder blades rather than sitting the torso fully upright.
- 1
Lie on your back with your legs straight and arms by your sides.
- 2
Lift your legs off the floor while simultaneously performing a crunch.
- 3
Lower your legs and upper body back to the starting position.
- 4
Repeat for the desired number of repetitions.
Expert tip
Keep your legs straight and raise them only as high as you can while keeping your lower back pressed to the floor.
Common mistakes
- ✕Bending the knees during the leg raise
- ✕Lower back arching away from the floor
- ✕Swinging the arms to build momentum