Core · Bodyweight
Reverse Crunch
How to do the reverse crunch, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

- Equipment
- Bodyweight
- Difficulty
- Beginner
- Logged as
- Weighted reps
- Movement
- Core Hold
- Mechanic
- Accessory
How to do it
Lie on your back with legs bent and feet off the floor. Curl your hips towards your chest by engaging your core, then lower back down.
- 1Press your lower back into the floor and curl your hips toward your chest so you feel your lower abs contracting
- 2Use a slow, controlled motion and let your tailbone lift slightly off the floor
- 3Keep your head and shoulders relaxed as you focus on your core
Common mistakes
- Don't swing your legs or use momentum to lift your hips
- Avoid arching your lower back or straining your neck
- Don't pull your knees too far toward your chest; keep the movement small and precise
Muscles worked
The reverse crunch mainly works the upper abs and lower abs, with the obliques assisting.
- Upper AbsPrimary
- Lower AbsPrimary
- ObliquesSupport
- QuadsMinor
Reverse Crunch strength standards
See how your reverse crunch ranks, from Bronze to Champion. These are the same standards the Kovo app uses to rank your lifts.
Bronze12 reps
Silver25 reps
Gold64 reps
Platinum107 reps
Diamond132 reps
Champion155 reps
Find your rank
Enter your best set of reps.
Kovo tracks this rank automatically as you train, across every lift, and levels you up as you get stronger.
Kovo programs the reverse crunch for you and tracks it every session.
We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.
More abs & core exercises
- How to do the ab wheel rollout
- How to do the ankle tap plank
- How to do the ankle taps
- How to do the resistance band dead bugs
- How to do the resistance band pallof press
- How to do the rollout
Last reviewed April 2026.
