Side Lying Internal Rotation
Strengthen your rotator cuff with side lying internal rotation. This exercise targets the subscapularis for shoulder stability and health.
Description
This exercise is done in a side-lying position and involves rotating your arm internally. It targets the shoulder muscles, primarily the rotator cuff.
How to Do Side Lying Internal Rotation
- 1Setup
Lie on your side with your top arm bent to 90 degrees at the elbow, forearm resting across your abdomen or chest. Ensure your elbow is tucked close to your side.
- 2Setup
Your palm should be facing down or towards your torso, and your upper arm should remain still against your side throughout the exercise.
- 3
Slowly lower your forearm towards the floor by internally rotating your shoulder, keeping your elbow fixed to your side.
- 4
Continue the rotation until your forearm is parallel to the floor or as far as comfortable without lifting your elbow from your side.
- 5
Gently reverse the movement, bringing your forearm back to the starting position with control, focusing on the internal rotation muscles.
Tips
- Keep your elbow firmly glued to your side throughout the entire movement to isolate the rotator cuff muscles effectively.
- Perform the rotation slowly and with control, avoiding any jerky movements or using momentum to complete the range of motion.
- Focus on initiating the movement from your shoulder joint, feeling the internal rotation muscles (subscapularis) engage.
Common Mistakes
- ×Lifting the elbow off your side shifts the tension away from the rotator cuff; fix this by actively pressing your elbow into your torso.
- ×Using momentum to swing the arm down reduces muscle activation; fix this by performing the movement slowly and deliberately in both directions.
- ×Over-rotating past your comfortable range can strain the shoulder joint; fix this by stopping at the first sign of tension or discomfort.
Variations

Cable Side Lying Lateral Raise
Sculpt your deltoids with the Cable Side Lying Lateral Raise. This isolation exercise targets the lateral head, building wider, rounder shoulders

Cable Half Kneeling External Rotation Press
Strengthen your shoulders and improve stability with the Cable Half Kneeling External Rotation Press.

Roll Shoulder Back Rotation Lying on Floor
Improve shoulder mobility and reduce stiffness with this gentle lying roll. Enhance your range of motion and promote healthy joint function.

Resistance Band Standing Shoulder Internal Rotation
Strengthen your rotator cuff with resistance band standing shoulder internal rotation.
Related Exercises

Shoulder - Lateral Rotation (External Rotation)
Strengthen your rotator cuff with bodyweight lateral rotations to improve shoulder stability and health. Perfect for injury prevention and rehabilitation.

Shoulder - Medial Rotation (Internal Rotation)
Improve shoulder internal rotation with this bodyweight stretch. Enhance joint mobility and reduce stiffness for better overhead movement and daily

Bent Arm Shoulder Stretch
Improve shoulder flexibility and reduce tension with the Bent Arm Shoulder Stretch. Gently pull your bent arm across your chest to target shoulder muscles.

Roll Posterior Shoulder Lying on Floor
Ease shoulder tension with this floor-based stretch targeting your posterior deltoid and rotator cuff. Improve flexibility and range of motion safely.

Dumbbell Complex Push-up Row Clean and Press
The ultimate full-body dumbbell complex combining a push-up, row, clean, and overhead press in one flow.

Kettlebell Around Head Rotation
Build shoulder mobility and stability by rotating a kettlebell around your head in a controlled circular path.
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