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R BC Pattern (Right Brachial Chain)

BC: Brachial Chain

The brachial chain is a polyarticular muscle group covering the anterior chest wall and cervical area, influencing breathing, shoulder dynamics, and neck movement. The right BC pattern is dominated and usually co-exists with the left AIC pattern as the body tries to counterbalance the system.

Muscles: Anterior-Lateral Intercostals, Deltoid-Pectoral, Sibson’s Fascia, Triangularis Sterni, Sternocleidomastoid, Scaleni, Diaphragm

 

Symptoms often associated with Right BC are:
  • Neck pain
  • Shoulder pain
    • SLAP lesion (Superior Labrum Anterior Posterior Lesion)
    • Glenohumeral Multidirectional Instability
    • Biceps Tendinitis
  • Tendinitis
    • Lateral epicondylitis (Tennis elbow)
    • Medial epicondylitis (Golf elbow)
    • De Quervain tenosynovitis
  • Thoracic outlet syndrome
  • Scapulothoracic regional pain (Between the scapula and spine)
  • Pain at the chest bone (Costosternal junctional pain)
  • Sternothoracic joint pain (Acromioclavicular (AC) and Sternoclavicular (SC) joints)
  • Intracostal pain (pain at between the ribs)
  • Snapping scapula 
  • Adhesive capsulitis

 

Overactive muscles: Left Pec Major, Right Pec Minor, Right Latissimus Dorsi

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