Crunch (on bosu ball)
Expert Advice
Keep your movements controlled and focus on using your abs to lift your upper body, rather than relying on momentum.
How-to-do Steps
- Sit on the bosu ball with your feet flat on the ground.
- Lie back so that the lower part of your back is centered on the top of the bosu ball.
- Place your hands lightly behind your head or across your chest.
- Contract your abs to lift your upper body towards your knees, keeping your lower back pressed against the bosu ball.
- Slowly lower back down to the starting position.
- Repeat for the desired number of repetitions.
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Muscles Worked
Crunch (on bosu ball) primarily targets the Abs, with Strength mechanics using Bosu Ball. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.
Primary

Abs100%
Equipment
Bosu Ball

Exercise Type
Strength
Sets & Reps Guidance
Beginner3 x 12-15
Intermediate3 x 10-12
Advanced4 x 8-10
Frequently Asked Questions
What muscles does Crunch (on bosu ball) work?
Crunch (on bosu ball) primarily targets the Abs. It is classified as a Strength exercise performed with Bosu Ball.
How many sets and reps should I do for Crunch (on bosu ball)?
For beginners, start with 3 sets of 12-15. Intermediate lifters can do 3 sets of 10-12. Advanced athletes can push to 4 sets of 8-10. Adjust based on your goals and recovery capacity.
Is Crunch (on bosu ball) suitable for beginners?
Yes, Crunch (on bosu ball) is rated as a beginner-friendly exercise, making it an excellent starting point. Focus on mastering proper form before increasing intensity or load.