Ab Wheel Rollout
What Is the Ab Wheel Rollout?
Ab Wheel Rollout is a compound exercise that primarily targets the core while also engaging the chest, shoulders, and arms. It is an intermediate-level movement that requires strength, control, and proper technique to avoid injury.
This version is performed from the knees. You start kneeling with the ab wheel under your shoulders, roll it forward until your arms are extended overhead and your body is nearly parallel to the floor, then pull it back. The abs work as anti-extension muscles: as the wheel travels away, the lever between your knees and hands gets longer and gravity tries to pull your lower back into an arch, and your abs have to hold the trunk straight against it. The shoulders do the visible moving, and the chest, lats, and triceps pull the straight arms back from overhead to bring the wheel home.
How far the wheel travels is the main thing that sets the difficulty. In a study of eight resistance-trained men holding kneeling ab wheel rollouts at three arm angles, rectus abdominis activity rose with each step from arms vertical to arms reaching 150 degrees from the trunk, and the pectoralis major worked harder than the lats or the lower back muscles. A short rollout is therefore a real regression, and the full reach shown here is the hardest part of the kneeling version. The Standing Ab Wheel Rollout lengthens the lever further and is a big step up.
The rollout usually sits near the end of a session as core accessory work, alongside planks and other trunk exercises. It suits anyone who can already hold a solid Plank with a flat lower back. If a full kneeling rollout is too hard, build up with the Dead Bug, the Exercise Ball Rollout, or the Wall Assisted Ab Wheel Rollout, which stops the wheel before you pass your control point.
Muscles Worked
- Rectus Abdominis
- Primary
- External Oblique
- Medium
- Pectoralis Major
- Medium
- Serratus Anterior
- Medium
- Deltoid
- Low
Instructions
- Kneel on a mat with your knees about hip-width apart and your toes tucked under.
- Hold the ab wheel handles with an overhand grip and set the wheel on the floor under your shoulders, a little in front of your knees, with your arms straight.
- Brace your abs, tuck your pelvis slightly, and squeeze your glutes so your lower back cannot arch.
- Keeping your arms straight, roll the wheel slowly forward and let your hips open as your torso lowers toward the floor.
- Continue until your arms are extended overhead and your body is nearly parallel to the floor, with your knees, hips, and shoulders in one line. Your lower legs may lift off the floor at full reach, but your knees stay down.
- Stop sooner if your lower back starts to sag, and never roll farther than you can pull back from.
- Pull the wheel back toward your knees by bringing your straight arms back under your shoulders, keeping your hips in line with your torso rather than pushing them back first.
- Return to the start with the wheel under your shoulders and repeat for the desired number of reps.
Common Mistakes
Overarching the Lower Back
Letting the lower back sag as the wheel moves forward loads the lumbar spine, so keep your abs braced and your pelvis slightly tucked.
Rolling Out Too Far
Extending beyond the point you can control strains the lower back and shoulders, so roll out only as far as you can hold a flat back.
Staying Bent at the Hips
Keeping the hips piked as the wheel travels shortens the lever and skips the core work, so let the hips open until your knees, hips, and shoulders form one line.
Leading With the Hips on the Return
Pushing the hips back first turns the return into a hip hinge and takes the load off the abs, so bring the wheel back with your trunk held straight.
Bending the Elbows
Bent elbows turn the movement into a press and make control harder, so keep your arms straight from start to finish.
Rushing the Way Out
Rolling out fast drops you into full reach, where the lower back is under the most load, so move slowly and under control.
Injuries
Ab Wheel Rollout is a medium risk exercise when performed with proper technique.
The lower back takes the most strain. If the wheel travels farther than your abs can control, the lumbar spine sags into an arch at full reach, where the lever is longest. The shoulders are the second strain point, because they hold your body weight with the arms stretched overhead, which can aggravate an irritable shoulder or one that lacks overhead mobility. Kneeling on a hard floor can also bother the knees, so use a mat or pad under them.
Protect your back by bracing before every rep, keeping a slight pelvic tuck, and only rolling as far as you can hold that position. Move slowly, especially on the way out, so you never drop into the bottom. If full range is too much, shorten it, roll toward a wall with the Wall Assisted Ab Wheel Rollout, use the Band Assisted Ab Wheel Rollout, or build base strength with the Plank and Exercise Ball Rollout. Progress by adding range a little at a time, then by pausing at full reach, and only then by moving to the Standing Ab Wheel Rollout.
Stop the set if you feel pain or pinching in your lower back, pain in the front or top of your shoulder, or if you can no longer pull the wheel back without your hips shooting back first.
Other Names for the Ab Wheel Rollout
The Ab Wheel Rollout is also known as:
- Kneeling Ab Wheel Rollout
Frequently Asked Questions
- Q: How many reps should I do for Ab Wheel Rollout?
Start with 2 to 3 sets of 5 to 10 slow reps, and end each set when your lower back starts to arch. Add range before you add reps.
- Q: Can beginners do Ab Wheel Rollout?
Yes, with a shortened range. Roll out only a short distance at first, or use the Wall Assisted Ab Wheel Rollout so a wall stops the wheel, and add range as you can keep your back flat.
- Q: How far should I roll out?
Roll out only as far as you can keep your lower back from arching and still pull back without your hips moving first. The full kneeling range ends with your arms overhead and your body nearly parallel to the floor.
- Q: Is the kneeling or the standing rollout better?
The kneeling version is the one to master first, because the Standing Ab Wheel Rollout makes the lever much longer and is far harder to control. Move to standing only once full-range kneeling reps feel solid.
- Q: What should I do if I feel lower back pain?
Stop immediately and reduce your range of motion. Strengthening the core and glutes can help improve stability.