Abs exercise · stability ball
Crunch (on Stability Ball, Arms Straight)
The crunch (on stability ball, arms straight) is a stability ball exercise that targets the abs, with the hip flexors assisting.
- Target muscle
- Abs
- Also works
- Hip flexors
- Equipment
- Stability ball
- Body part
- Waist
How to do the crunch (on stability ball, arms straight)
- 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.
Sets and reps
Start with 3 sets of 10–15 reps, resting 45–60 seconds. When every set feels easy, add reps, slow the lowering phase or move to a harder variation.
Muscles worked
The main muscle is the abs. The hip flexors work as secondary muscles. See all ab exercises or every stability ball exercise.
