How to do it
Exhale fully as you draw your knees in toward your ribcage.
- 1
Lie on your back with your feet in the suspension handles, legs extended.
- 2
Place your hands behind your head or across your chest.
- 3
Crunch your abs to bring your knees towards your chest.
- 4
Slowly extend your legs back to the starting position.
- 5
Repeat for the desired number of repetitions.
Expert tip
Focus on using your abs to pull your knees towards your chest, rather than swinging your legs for momentum.
Common mistakes
- ✕Pulling the neck forward with the hands
- ✕Arching the lower back during the crunch
- ✕Jerking the legs back down to the start