Floor Crunch
A basic abdominal crunch performed lying on the floor to strengthen the rectus abdominis.
Secondary muscles
How to do it
- Lie on your back with knees bent and feet hip-width apart.
- Place hands lightly behind head or cross over chest.
- Engage core and lift shoulders off the floor.
- Pause briefly at the top of the movement.
- Slowly return to the starting position.
Form cues
- Keep chin off chest
- Lower back pressed to floor
- Controlled movement
- Exhale on crunch
Common mistakes
- Pulling on neck
- Not engaging core
- Using momentum
- Not breathing properly
Breathing
Exhale as you crunch up, inhale as you lower down.





