What Is Adhesive Capsulitis?

Adhesive capsulitis, commonly known as frozen shoulder, is a condition that causes progressive stiffness, pain, and restricted movement in the shoulder joint. It typically develops gradually and may significantly limit daily activities such as reaching overhead, reaching behind the back, dressing, washing hair, putting on a jacket, lifting objects, or sleeping on the affected side.

Frozen shoulder involves restriction of the shoulder joint capsule, which is the connective tissue surrounding the shoulder joint. As the capsule becomes irritated, thickened, or tightened, both active movement and passive movement may become limited. 

This means the shoulder may feel restricted whether you try to move it yourself or someone else tries to move it for you.

Symptoms often develop slowly and may progress through stages. Early on, pain may be more noticeable. Over time, stiffness and loss of shoulder mobility may become the main limitation. The condition can take months to improve, and in some cases may last longer without proper management. Mayo Clinic notes that frozen shoulder symptoms usually begin slowly, worsen over time, and often improve gradually over one to three years.

Diagnosis should be confirmed by a licensed medical professional, especially because other shoulder conditions such as rotator cuff injury, arthritis, nerve irritation, or inflammatory conditions can also cause shoulder pain and limited movement.

Individuals May Experience

• Gradual shoulder stiffness

• Deep aching shoulder pain

• Difficulty reaching overhead

• Difficulty reaching behind the back

• Pain when putting on a coat, bra, shirt, or jacket

• Reduced shoulder range of motion

• Discomfort when lying on the affected side

• Difficulty sleeping due to shoulder pain

• Pain or stiffness when washing hair

• Trouble reaching into cupboards or lifting the arm

• Compensatory neck, upper back, or shoulder blade tension

• A feeling that the shoulder is “stuck” or blocked

• Reduced confidence using the arm during daily activity

A key feature of adhesive capsulitis is shoulder pain with a marked loss of range of motion. The pain is often described as a dull ache and may be aggravated by reaching overhead or behind the back.

What Contributes to Adhesive Capsulitis?

Frozen shoulder may develop without a clear cause, but several factors may contribute to shoulder stiffness, joint capsule restriction, and loss of mobility, including:

• Prolonged shoulder immobilization

• Previous shoulder injury or surgery

• Capsular tightening and inflammation

• Protective guarding from pain

• Diabetes or metabolic conditions

• Thyroid-related conditions

• Poor scapular mechanics

• Reduced thoracic spine mobility

• Rib cage or clavicle mobility restrictions

• Rotator cuff irritation or altered shoulder loading

• Reduced use of the shoulder due to pain or fear of movement

The condition often involves both joint capsule restriction and surrounding muscular compensation. As the shoulder becomes more restricted, nearby areas such as the neck, upper back, ribs, shoulder blade, and opposite arm may begin compensating for lost motion.

Medical sources describe frozen shoulder as involving thickening, stiffness, and inflammation of the connective tissue capsule surrounding the shoulder joint.

How Manual Therapy May Help

Manual therapy and rehabilitation may help support shoulder mobility, reduce protective muscle guarding, and improve function during the recovery process. Because frozen shoulder can be painful and irritable, care should be adapted to the stage of the condition and the person’s tolerance.

The goal is not to force painful range. Treatment is typically most effective when it respects tissue sensitivity while gradually encouraging improved movement, strength, and shoulder control.

Clinical practice guidance for adhesive capsulitis recognizes that treatment intensity should be matched to irritability level. People with higher irritability may tolerate gentler approaches, while those with lower irritability may tolerate more progressive stretching, manual therapy, strengthening, and higher-demand activity.

Osteopathic Manual Therapy

Osteopathic Manual Therapy may focus on how the shoulder joint works in relation to the shoulder blade, thoracic spine, ribs, clavicle, neck, and surrounding soft tissues. When shoulder movement becomes restricted, nearby regions often compensate, which may contribute to neck tension, upper back stiffness, rib restriction, or altered shoulder mechanics.

Treatment may include:

• Gentle mobilization of the glenohumeral joint

• Improving scapular mobility and shoulder blade mechanics

• Addressing thoracic spine stiffness

• Reducing fascial tension through the shoulder girdle

• Restoring rib and clavicle mobility

• Supporting balanced shoulder mechanics

• Encouraging relaxation of protective guarding patterns

• Improving surrounding mobility without forcing painful range

• Assessing compensation through the neck, upper back, and rib cage

The aim is to improve joint motion, reduce mechanical strain, and support more comfortable shoulder movement while respecting the stage and irritability of the condition.

Physiotherapy

Physiotherapy plays a central role in frozen shoulder management by helping restore shoulder range of motion, improve strength, and guide safe progression through each phase of recovery. It may be especially important for individuals struggling with daily tasks, sleep discomfort, or persistent shoulder stiffness.

Physiotherapy may include:

• Graduated shoulder range-of-motion exercises

• Capsular stretching techniques when appropriate

• Scapular stabilization training

• Mobility exercises for the shoulder, thoracic spine, and ribs

• Progressive strengthening once mobility improves

• Functional retraining for reaching, dressing, lifting, and daily tasks

• Education on activity modification and symptom pacing

• Structured progression through tolerable ranges

• Home exercise programming to support consistency

Physical therapy commonly includes stretching and range-of-motion exercises to help restore motion, often under supervision or as part of a home program.

Massage Therapy

Massage therapy may support frozen shoulder care by addressing surrounding muscle tension and compensatory strain. While massage does not directly resolve the joint capsule restriction, it may help reduce protective guarding and improve comfort in the muscles around the shoulder, neck, chest, and upper back.

Massage therapy may include:

• Reducing protective muscle guarding

• Improving circulation to surrounding soft tissues

• Addressing tension in the deltoid, pectorals, upper trapezius, and rotator cuff region

• Supporting relaxation during painful or guarded stages

• Reducing compensatory neck and upper back strain

• Helping relieve muscle tightness associated with limited shoulder movement

• Supporting comfort alongside mobility-based rehabilitation

Massage is typically most useful when combined with active rehabilitation strategies, mobility exercises, and a structured plan for gradually restoring shoulder function.

Book an Assessment

If shoulder stiffness, frozen shoulder symptoms, or limited shoulder mobility are affecting your daily activities, our team can assess joint mobility, movement patterns, and surrounding compensation. Book an assessment to receive a structured care plan designed to support shoulder mobility, comfort, and function.