Core · Bodyweight
Glute-Ham Developer Crunch
How to do the glute-ham developer crunch, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.
- Equipment
- Bodyweight
- Difficulty
- Intermediate
- Logged as
- Reps
- Movement
- Flexion
- Mechanic
- Isolation
How to do it
Set yourself on the glute-ham developer with your feet anchored and your torso upright. Round your upper body forward into a crunch by pulling your ribs toward your hips, then extend back to the start under control.
- 1Your upper abs pulling your ribs toward your hips
- 2A rounded spine as you crunch forward
- 3Your feet anchored to hold the lower body steady
Common mistakes
- Hinging from the hips instead of crunching the abs
- Jerking up with momentum out of the bottom
- Pulling on your neck to lift your torso
Muscles worked
The glute-ham developer crunch mainly works the upper abs, with the lower abs, obliques, and hip flexors assisting.
- Upper AbsPrimary
- Lower AbsSupport
- ObliquesSupport
- Hip FlexorsSupport
- HamstringsMinor
Kovo programs the glute-ham developer 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.