Exercise guide
Stick Assisted Lying Shoulder External Rotation
- Beginner
- Isolation
- Rep-based
- Back
- Shoulders
- Upper arms
This mobility exercise targets the rotator cuff and posterior deltoids to improve shoulder health and external rotation range of motion. Using a stick provides a controlled, passive-to-active stretch that helps stabilize the glenohumeral joint.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your knees bent and feet flat on the floor.
- Position the target arm out to the side at shoulder height (90 degrees) with the elbow bent at a 90-degree angle.
- Hold a stick in the target hand so it runs along the outside of your forearm and past your elbow.
- Grasp the other end of the stick with your non-target hand across your body.
How to do it
- Inhale and relax the target shoulder, ensuring the back of the upper arm remains in contact with the floor.
- Exhale as you use the non-target hand to push the stick, gently rotating the target forearm backward toward the floor.
- Hold the end-range stretch for 2-3 seconds while maintaining a 90-degree angle at the elbow.
- Inhale as you slowly guide the stick back to the starting vertical position with control.
Form checklist
- Keep the elbow of the target arm pinned to the floor at all times.
- Do not allow the shoulder blade to lift or the front of the shoulder to 'shrug' forward.
- Ensure the movement comes only from the shoulder joint, not by arching the lower back.
- Move within a pain-free range of motion; the stretch should feel productive, not sharp.
Pro tips
- At the bottom of the movement, try to lightly 'resist' the stick with your target hand to engage the rotator cuff muscles isometrically.
- Keep your wrist neutral and firm to ensure the torque is applied directly to the shoulder joint.
Make it harder
- Transition to 'active' rotation by removing the stick and using a very light dumbbell to provide resistance through the same range.
- Increase the time under tension by performing a 5-second slow eccentric (lowering) phase.
Frequently asked
- What muscles does the stick assisted lying shoulder external rotation work?
- The stick assisted lying shoulder external rotation primarily targets the rotator cuff, and also works the biceps and deltoids as secondary muscles.
- What equipment do you need for the stick assisted lying shoulder external rotation?
- The stick assisted lying shoulder external rotation uses dumbbell.
- Is the stick assisted lying shoulder external rotation good for beginners?
- Yes. The stick assisted lying shoulder external rotation is a beginner-friendly movement and a strong foundation to build on.