Core · Bodyweight
Crunch Bent Knee Against Wall
How to do the crunch bent knee against wall, 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
- Flexion
- Mechanic
- Isolation
How to do it
Lie on your back with knees bent and the soles of your feet pressed against a wall. Curl your shoulders off the floor toward your knees using your abs, then lower back down with control.
- 1Upper abs contracting to curl the shoulders up
- 2Lower back staying pressed into the floor
- 3Feet steady on the wall as you crunch
Common mistakes
- Pulling on the neck to lift the head
- Pushing into the wall to drive the crunch
- Using momentum instead of a controlled curl
Muscles worked
The crunch bent knee against wall mainly works the upper abs, with the lower abs and obliques assisting.
- Upper AbsPrimary
- Lower AbsSupport
- ObliquesSupport
- Hip FlexorsMinor
Kovo programs the crunch bent knee against wall 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 June 2026.