Abs · Stability ball · Intermediate
How to do Stability Ball Crunch (Full Range Hands Behind Head)
The stability ball crunch (full range hands behind head) is an abdominal exercise performed on a stability ball, targeting the abs and engaging the hip flexors as secondary muscles. The movement requires core engagement and balance to execute the crunch through a full range of motion while maintaining stability on the ball.

- Primary muscle
- Abs
- Also works
- Hip flexors
- Equipment
- Stability ball
- Level
- Intermediate
- Category
- Abs
How to do Stability Ball Crunch (Full Range Hands Behind Head), step by step
- Sit on the stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
- Place your hands behind your head with your elbows pointing outwards.
- Engaging your abs, slowly curl your upper body forward, bringing your chest towards your knees.
- Pause for a moment at the top, then slowly lower your upper body back to the starting position.
- Repeat for the desired number of repetitions.
Muscles worked
Stability Ball Crunch (Full Range Hands Behind Head) works your abs as the main mover, with help from your hip flexors.
Track Stability Ball Crunch (Full Range Hands Behind Head) in SPLYT
Stability Ball Crunch (Full Range Hands Behind Head) is already in SPLYT’s exercise library. Log your sets, reps and weight on iPhone or Apple Watch, with last time’s weights already filled in.
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