Core · Stability Ball
Full Range Hands Behind Head Stability Ball Crunch
How to do the full range hands behind head stability ball crunch, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.
- Equipment
- Stability Ball
- Difficulty
- Beginner
- Logged as
- Reps
- Movement
- Flexion
- Mechanic
- Isolation
How to do it
Sit on a stability ball and walk your feet out until your lower back is supported on the ball, hands resting behind your head. Let your torso extend back over the ball for a full stretch, then crunch up by curling your ribs toward your hips, and lower under control.
- 1Abs curling the ribs toward the hips
- 2A full stretch through the abs over the ball
- 3Steady balance through the feet and hips
Common mistakes
- Pulling on your head and neck with your hands
- Using momentum to bounce off the ball
- Cutting the range short at the top or bottom
Muscles worked
The full range hands behind head stability ball crunch mainly works the upper abs, with the lower abs, obliques, and hip flexors assisting.
- Upper AbsPrimary
- Lower AbsSupport
- ObliquesSupport
- Hip FlexorsSupport
- QuadsMinor
Kovo programs the full range hands behind head stability ball 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 June 2026.