Core exercise
Reverse Crunch
Controlled trunk flexion that brings your pelvis toward your ribs without leg momentum.
- Primary muscleCore
- EquipmentBodyweight
- MovementCore
- LevelBeginner
- Core
- Bodyweight
How to do the Reverse Crunch
4 steps, in the order you do them.
- Lie on your back with your arms at your sides and your knees bent over your hips.
- Bring your knees toward your chest, lifting your pelvis just slightly off the floor.
- Lower your pelvis slowly without swinging your legs or arching your back.
- Repeat, keeping your abs engaged throughout the entire movement.
Muscles worked
Common Reverse Crunch mistakes
What goes wrong most often when you do the Reverse Crunch, and how to fix it.
Your legs swing up with momentum.
Bring your knees to your chest by peeling your pelvis off the floor with your abs, without swinging your legs.
Your hands push into the floor to lift your hips.
Keep your arms relaxed at your sides, without pressing your palms into the floor.
Your pelvis doesn't lift and only your knees move.
At the top of each rep, curl your pelvis until your tailbone lifts slightly off the floor.
Alternatives to the Reverse Crunch
They work the core with other equipment, including options for training at home.
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More core exercises
Sit UpCore · Bodyweight
Plank Shoulder TapCore · Bodyweight
Stability Ball PlankCore · Other
Oblique CrunchCore · Bodyweight
Frequently asked questions
What muscles does the Reverse Crunch work?
The Reverse Crunch works mainly the core.