Muscles worked
abs, hip flexors
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crunch (on stability ball)
- Body part
- waist
- Equipment
- stability ball
- Target muscle
- abs
- Muscle group
- hip flexors
Secondary muscles
How to perform it
- 1
Sit on the stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
- 2
Lie back on the ball until your lower back is supported and your upper body is parallel to the floor.
- 3
Place your hands behind your head or across your chest.
- 4
Engage your abs and lift your upper body towards your knees, curling your torso forward.
- 5
Pause for a moment at the top of the movement, then slowly lower your upper body back down to the starting position.
- 6
Repeat for the desired number of repetitions.
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