crunch (on stability ball, arms straight)
crunch (on stability ball, arms straight) exercise guide with muscles, equipment, animation and step-by-step instructions. Target: abs. Equipment: stability ball.
- Target muscle
- abs
- Muscle group
- hip flexors
- Body part
- waist
- Equipment
- stability ball
Secondary muscles
hip flexors
How to perform
- Sit on the stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
- Lie back on the ball until your lower back is supported and your upper body is parallel to the floor.
- Place your hands behind your head or cross them over your chest.
- Engage your abs and lift your upper body off the ball, curling your shoulders towards your hips.
- Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
- Repeat for the desired number of repetitions.