Shoulder Impingement Relief: Internal Rotator Release
Step 1
Understanding the Problem
Shoulder impingement is the pinching of tissue inside the shoulder when the arm is raised or rotated, and it is usually blamed on the shape of the bones. Releasology finds the driver in the internal rotators: the subscapularis and teres major. When the subscapularis fatigues into spasm it pulls the shoulder blade tightly against the upper ribs, kills the glide between them, and locks the arm bone in internal rotation. External rotation is blocked, the joint is compressed from inside, and every reach behind the back or overhead pinches. Releasology releases the internal rotator complex directly, so the shoulder blade glides again and the joint has room to move.
What this release relieves
- Shoulder impingement and the pinch on lifting or rotating the arm. The joint is compressed because the subscapularis is holding it. Release the muscle and the pinch disappears with the compression.
- Deep anterior shoulder pain that is hard to localise. Pain felt deep in the front of the shoulder, that cannot be pointed to, is the subscapularis, which lies under the shoulder blade where no hand reaches from outside. Releasology reaches it.
- Difficulty reaching behind the back, putting on a jacket or fastening clothing. Both movements need external rotation; a spasmed internal rotator will not allow it.
- A sense of blocking inside the joint. Clients describe the shoulder hitting a wall partway through a movement. That wall is muscular, and it releases.
- Vague chest or anterior shoulder tightness. The internal rotators pull the arm bone forward and inward, and the front of the shoulder and chest guard in response.
- Loss of smooth shoulder movement and internal rotation imbalance. With the subscapularis released, the external rotators regain their balance and the joint tracks smoothly again.
This modality teaches the release of the Internal Rotator Complex, including the subscapularis and teres major. When these muscles enter spasm, they can contribute to shoulder restriction and internal rotation imbalance.
Frequently asked questions
I was told I have a bone spur causing the impingement. Can this help?
Many shoulders with spurs on imaging have no pain, and many painful shoulders have none. When the impingement is being produced by muscle holding the joint compressed, releasing the muscle relieves it regardless of the spur. Surgical decisions belong with your physician.
Why can nobody find the sore spot?
Because the subscapularis lies between the shoulder blade and the ribs. It cannot be reached from the back and is missed from the front. Releasology has a specific approach to it.
How does this relate to frozen shoulder?
Frozen shoulder (Modality 15) is driven by the supraspinatus pulling the arm bone upward; impingement is the internal rotators pulling it forward and inward. The two often coexist, and the rotator cuff is released as a set.
Step 2
The Clinical Problem
Clinically, this pattern presents as:
• restriction in external rotation of the shoulder
• weakness or discomfort during internal rotation
• deep anterior shoulder pain, often difficult to localize
• a sense of “blocking” inside the joint rather than surface pain
Clients may report:
• difficulty reaching behind the back
• pain when putting on a jacket or fastening clothing
• discomfort when rotating the arm outward
• vague chest or anterior shoulder tightness
A key pattern:
👉 the shoulder does not move freely within its socket
👉 rotation feels restricted, not just weak
Despite treatment of more superficial muscles, the restriction often persists.
Step 3
Why This Happens
The internal rotator cuff is made up of the subscapularis, and teres major.
The subscapularis lies on the anterior surface of the scapula, hidden between the scapula and the rib cage. When it enters spasm:
• it pulls the scapula tightly against the top 4 ribs - enough for them to articulate the thoracic vertebrae they are attached to T1-T4
• reduces glide between scapula and thoracic wall
• restricts external rotation of the humerus
• creates internal joint compression
The teres major originates from the inferior angle of the scapula bone. It passes under the armpit to the front side of the arm bone and inserts onto the lesser tubercle with the subscapularis. The lesser tubercle is the forward-facing bump on the front of the humerus bone at the top
This muscle causes pain on the bottom tip of the scapula bone that follows its path to its inner-anterior aspect.
When in spasm, both of these muscles:
• the opposing external rotators (especially teres minor) lose functional balance
• iay feel weak or painful due to constant contraction
This creates a paradox:
👉 these muscles that are responsible for internal rotation are tight
👉 yet internal rotation becomes weak and painful to use
The joint loses its ability to move smoothly in either direction.
The Infraspinatus is where one can locate H1 - the first point on the heart meridian in Chinese medicine. This is because of its unusual ability to anteriorly flex the upper ribs enough to offset the upper thoracic.vertebrae into the sympathetic nerves going to the heart itself.