Exercise guide
Roll Ball Iliospsoas
- Intermediate
- Compound
- Timed hold
- Lower arms
- Shoulders
- Upper arms
- Waist
This myofascial release technique uses a medicine ball to target the deep iliopsoas muscles, helping to alleviate hip tightness and improve pelvic alignment. It is highly effective for restoring mobility in the hip flexors after long periods of sitting or heavy lower-body training.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie face down on a mat, supporting your upper body on your forearms in a modified plank position.
- Place a small-to-medium medicine ball just inside your hip bone (ASIS) on one side.
- Extend the target leg straight back and bend the opposite leg out to the side (half-frog position) for stability and pressure control.
How to do it
- Slowly lower your body weight onto the ball, exhaling deeply to allow the hip flexor to relax over the sphere.
- Gently shift your weight an inch up, down, or side-to-side to locate areas of high tension or 'trigger points'.
- Once a sensitive spot is found, hold the position for 30 seconds while maintaining deep, diaphragmatic breathing.
- Inhale as you move to a new spot and exhale as you sink deeper into the pressure.
Form checklist
- Keep your core lightly engaged to prevent your lower back from arching excessively.
- Ensure the ball is placed in the soft tissue just inside the hip bone, not directly on the bone itself.
- Keep the target leg completely relaxed; tensing the muscle will prevent deep penetration.
- Maintain a neutral neck position by looking at the floor between your forearms.
Pro tips
- Use the 'tack and stretch' method: once you find a tight spot, slowly bend your knee to bring your heel toward your glute, then straighten it again to floss the muscle under the ball.
- Focus on 'melting' into the ball rather than rolling aggressively; the psoas responds better to sustained, static pressure.
Make it harder
- Switch to a smaller, firmer medicine ball or a dedicated mobility ball to increase the localized pressure.
- Lift the knee of the target leg slightly off the floor while pinned to increase the intensity of the release.
Frequently asked
- What muscles does the roll ball iliospsoas work?
- The roll ball iliospsoas primarily targets the hip flexors, and also works the abs and obliques as secondary muscles.
- What equipment do you need for the roll ball iliospsoas?
- The roll ball iliospsoas uses medicine ball.
- Is the roll ball iliospsoas good for beginners?
- The roll ball iliospsoas is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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