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Abs · Stability ball · Intermediate

How to do Crunch (On Stability Ball, Arms Straight)

The crunch on a stability ball with arms straight is an abdominal exercise that targets the abs while also engaging the hip flexors. The use of a stability ball increases the challenge to balance and core stability.

Crunch (On Stability Ball, Arms Straight) demonstration
Primary muscle
Abs
Also works
Hip flexors
Level
Intermediate
Category
Abs

How to do Crunch (On Stability Ball, Arms Straight), step by step

  1. Sit on the stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
  2. Lie back on the ball until your lower back is supported and your upper body is parallel to the floor.
  3. Place your hands behind your head or cross them over your chest.
  4. Engage your abs and lift your upper body off the ball, curling your shoulders towards your hips.
  5. Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
  6. Repeat for the desired number of repetitions.

Muscles worked

Crunch (On Stability Ball, Arms Straight) works your abs as the main mover, with help from your hip flexors.

Track Crunch (On Stability Ball, Arms Straight) in SPLYT

Crunch (On Stability Ball, Arms Straight) 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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