How to Do Crunch (On Stability Ball)

Crunch (On Stability Ball) is a core exercise using stability ball, listed as beginner in the A90 Training Club catalogue.

Primary muscle

Core

Equipment

Stability ball

Difficulty

Beginner

01 / Move with control

How to perform

How to do Crunch (On Stability Ball)

  1. 01Sit on the stability ball and walk the feet forward until the ball supports the lower back and mid-back.
  2. 02Place the fingertips behind the ears or cross the arms over the chest.
  3. 03Exhale and curl the chest toward the hips, contracting the abdominals and lifting the shoulder blades off the ball.
  4. 04Lower the torso back over the curve of the ball to feel a stretch in the abdominal wall.
  5. 05Maintain a gap between the chin and the chest to avoid neck strain.

Same guidance shown inside the A90 app

02 / Anatomy

Muscles worked by Crunch (On Stability Ball)

Primary Stabiliser Inactive

Tap to explore manually

Primary movers

  • Core Stabilises the spine and transfers force.

Stabilisers

  • Lower back Stabilises the spine during lifts and bends.
  • Forearms Grips and stabilises the wrist under load.

03 / A90 Coach

A90 Coach tip

Press the lower back into the curve of the stability ball to maximize abdominal engagement and prevent hip flexor dominance.

Same coaching engine used inside the A90 app

05 / FAQ

Crunch (On Stability Ball) questions

What muscles does Crunch (On Stability Ball) work?

Crunch (On Stability Ball) is catalogued as a core exercise in A90 Training Club, with the core as its primary muscle group.

How do you do Crunch (On Stability Ball) correctly?

Sit on the stability ball and walk the feet forward until the ball supports the lower back and mid-back. Place the fingertips behind the ears or cross the arms over the chest. Exhale and curl the chest toward the hips, contracting the abdominals and lifting the shoulder blades off the ball. Lower the torso back over the curve of the ball to feel a stretch in the abdominal wall. Maintain a gap between the chin and the chest to avoid neck strain.

What is the A90 coach tip for Crunch (On Stability Ball)?

Press the lower back into the curve of the stability ball to maximize abdominal engagement and prevent hip flexor dominance.

Is Crunch (On Stability Ball) suitable for beginners?

Crunch (On Stability Ball) is rated beginner in the A90 Training Club catalogue.

What equipment do you need for Crunch (On Stability Ball)?

Crunch (On Stability Ball) uses stability ball.

A90 Intelligence

Put this into a real plan.

A90 Intelligence programmes crunch (on stability ball) into a 30, 60 or 90 day plan built around your equipment, then adjusts it as you train.

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