How to do the Crunch with Stability Ball
Primary: Core · also works Obliques, Hip Flexors.
The crunch with stability ball is an effective core exercise that targets the abdominal muscles. By using the stability ball, you engage more muscles compared to a traditional crunch due to the added instability. This exercise helps improve your core strength and stability, which is important for overall functional movement and athletic performance.
Step by step
- 1
Sit on a stability ball with your feet flat on the floor.
- 2
Walk your feet forward and roll your back onto the ball so that your lower and middle back are supported, with your upper back and shoulders off the ball.
- 3
Cross your arms over your chest or place your hands behind your head for support. This is your starting position.
- 4
Engage your core and lift your upper body off the ball, bringing your ribs towards your hips.
- 5
Hold the contraction for a moment at the top, then slowly lower yourself back to the starting position.
- 6
Repeat the movement for the prescribed number of repetitions.
Coaching cues
- Keep your core engaged throughout the exercise to maintain stability on the ball.
- Avoid pulling on your neck or head. Use your abdominal muscles to lift your torso.
- Make sure your lower back stays in contact with the ball throughout the movement to avoid excessive arching.
Sets, reps and where it fits
Muscle
3–4 × 10–20
rest 60–90 s
Strength
not a strength lift
use for assistance
Fat loss
3 × 10–20
rest 45–60 s
Crunch with Stability Ball alternatives
Same movement pattern, different equipment or difficulty. Swap one-for-one in any plan.
Frequently asked questions
What muscles does the Crunch with Stability Ball work?
Primary: Core. Secondary: Core, Obliques, Hip Flexors
How many sets and reps of Crunch with Stability Ball should I do?
For muscle: 3–4 sets of 10–20 reps. For strength on compound lifts: 4–5 sets of 4–6. Rest 60–120 seconds between sets.
What can I do instead of the Crunch with Stability Ball?
Same movement pattern, different equipment: Bicycle Crunch, Bird Dog, Crunch, Dead Bug, Flutter Kick, Lying Leg Raise.
Is the Crunch with Stability Ball good for beginners?
Yes. It is a beginner-friendly movement; start light, master the steps above and add load gradually.