Pilates Open Leg Rocker: How to Do It and Muscles Worked

How to do the Open Leg Rocker

Sit near the front of your mat with your knees bent, holding onto your ankles or calves. Balance on your sit bones and hover your feet just off the floor.

1. From your balanced starting position, extend both legs up and out so they form a wide V shape.
2. Scoop your belly inward to create a deep rounded curve in your spine.
3. Keep your gaze toward your navel and initiate the roll backward.
4. Roll back smoothly onto your upper shoulders, taking care to avoid your neck.
5. Do not pause on your shoulders; immediately begin the return movement.
6. Use your abdominal muscles to roll forward and return to your starting balance point.
7. Hold the balance at the top before beginning the next repetition.

• Breath. Teachers cue breathing differently, but a common pattern is to inhale as you roll backward and exhale as you roll forward. Some instructors prefer the opposite, so choose the pattern that helps you maintain control.
• Where you feel it. You should feel strong work in your deep abdominal muscles and a stretch along the back of your thighs. You should not feel sharp pain in your neck or a harsh impact on your lower spine.
• How many. 5 to 8 controlled repetitions

Common mistakes

• Rolling onto the neck. Stop your backward momentum when you reach your upper shoulders. Going too far back places dangerous pressure on your cervical spine.
• Using momentum instead of control. Initiate the movement by scooping your abdominals rather than throwing your head and shoulders backward. A slower, controlled roll ensures your core is doing the work.
• Losing the spinal flexion. Keep your spine in a rounded curve throughout the entire exercise. Flattening your back will cause you to clunk heavily onto the mat.
• Bending the knees. Try to keep your legs straight in the V shape to properly lengthen your hamstrings. If this is too difficult, hold lower down on your legs.
• Tensing the shoulders. Keep your shoulders relaxed and drawn away from your ears. Let your abdominal muscles manage your balance and movement.

Make it easier or harder

Easier

• Keep your knees slightly bent while rolling if your hamstrings are tight.
• Hold onto the back of your thighs instead of your ankles or calves.
• Practice the balance point at the top without actually rolling backward.

Harder

• Bring your legs completely together at the top of the balance before opening them back into a V for the next roll.
• Release your hands from your legs and balance with your arms reaching forward.

Who should be careful

• If you have osteoporosis or low bone density, or a recent disc injury, ask your clinician whether repeated loaded forward bending of the spine suits you. Many bone health organizations recommend limiting it.
• Rolling on the spine is not a good idea with osteoporosis, a bony or sensitive spine, or a recent back injury. Use a thick mat, or hold the balance without rolling.
• Tight hamstrings make the straight-leg version hard to do well. Bending the knees keeps the focus on the spine instead of forcing a stretch.

Related exercises

• Corkscrew Intermediate to advanced
• Spine Stretch Forward Beginner
• Teaser Intermediate to advanced
• Boomerang Advanced
• Chest Lift Beginner

When to see a doctor or physical therapist

• Sharp or shooting pain in your neck or upper spine.
• Numbness or tingling traveling down your arms or legs.
• A sudden, intense pain in your lower back when rolling.
• Dizziness or a feeling of vertigo as you roll backward.

This page is general education, not a diagnosis or treatment plan. If you have a health condition, are pregnant or are recovering from an injury or surgery, check with your own clinician before trying new exercises.

How we put this page together. Exercise data (type, level, equipment and muscles) was compiled by our editors from the classical mat order in Joseph Pilates’ 1945 book and from commonly taught mat repertoire. Muscle lists are a general anatomy guide; cueing differs between teachers. Text drafted with AI assistance and checked by the Editorial Team. See our editorial policy. Last checked October 2026.