Core exercise
Crunch
Short trunk flexion from the floor for the rectus abdominis.
- Primary muscleCore
- EquipmentBodyweight
- MovementCore
- LevelBeginner
- Core
- Bodyweight
How to do the Crunch
4 steps, in the order you do them.
- Lie on your back with your knees bent and your feet flat, hip-width apart.
- Rest your fingertips at the sides of your head, with your elbows wide, without pulling on your neck.
- Lift your head, shoulders, and upper back by contracting your abs; your lower back stays on the floor.
- Lower slowly without fully resting your head down, and repeat.
Muscles worked
Alternatives to the Crunch
They work the core with other equipment, including options for training at home.
Guides to get more out of it
Mobbe
Log every set and watch your numbers climb.
Mobbe saves every set, shows you your record and builds your full routine.
More core exercises
Dead BugCore · Bodyweight
Cable Wood Chop Low to HighCore · Cable machine
Decline CrunchCore · Bench
Cable Wood Chop High to LowCore · Cable machine
Frequently asked questions
What muscles does the Crunch work?
The Crunch works mainly the core.