Exercise guide
Stability Ball Rollout On Knees
- Intermediate
- Compound
- Rep-based
- Waist
The stability ball rollout is a premier anti-extension core exercise that builds exceptional abdominal strength and spinal stability by challenging the rectus abdominis to resist gravity as the lever arm lengthens.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Kneel on a soft mat with a stability ball positioned directly in front of you.
- Place your forearms on the top of the ball with your hands in loose fists, elbows bent at 90 degrees.
- Position your knees hip-width apart and tuck your pelvis slightly (posterior pelvic tilt) to engage your glutes and lower abs.
- Ensure your shoulders are stacked directly over your elbows in the starting position.
How to do it
- Inhale and slowly roll the ball forward by extending your arms and allowing your hips to move toward the floor in a controlled manner.
- Continue rolling out as far as you can while maintaining a perfectly flat back and neutral spine.
- Exhale forcefully and use your abdominals and lats to pull the ball back toward your knees to return to the starting position.
- Maintain a slow, controlled tempo, taking roughly 3 seconds to roll out and 2 seconds to return.
Form checklist
- Do not let your lower back arch or 'sag' toward the floor at the bottom of the movement.
- Keep your glutes squeezed tight throughout the set to protect your lumbar spine.
- Ensure your hips move forward with your torso; do not leave your butt behind over your heels.
- Keep your neck neutral by looking at a spot on the ball or just in front of it.
Pro tips
- Think about 'pulling' the ball back with your belly button rather than just your arms to maximize mind-muscle connection.
- At the furthest point of extension, pause for one second to maximize time under tension where the core is most challenged.
Make it harder
- Increase the range of motion by rolling out until your arms are fully extended and your chest is close to the ball.
- Narrow your knee stance or transition to a 'staggered' foot position to reduce your base of support.
Frequently asked
- What muscles does the stability ball rollout on knees work?
- The stability ball rollout on knees primarily targets the abs, lats, and obliques, and also works the erector spinae and serratus anterior as secondary muscles.
- What equipment do you need for the stability ball rollout on knees?
- The stability ball rollout on knees uses stability ball.
- Is the stability ball rollout on knees good for beginners?
- The stability ball rollout on knees is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.