Anatomy of the shoulders

The shoulder is the most mobile and thus, the most vulnerable joint in the body. Stabilising and protecting it is vital when it comes to our movement patterns.

Bones of the Shoulder

  • Clavicle (Collarbone
  • Scapula (Shoulder Blade)
  • Humerus

Joints of the Shoulder

  • Glenohumeral Joint
  • Acromioclavicular (AC) Joint
  • Sternoclavicular Joint
  • Scapulothoracic Join

Key Muscles and Their Functions

Rotator Cuff (Crucial for Stability)

  • Supraspinatus
  • Infraspinatus 
  • Teres Minor  
  • Subscapularis 

Other Shoulder Muscles

  • Deltoid
  • Trapezius 
  • Serratus Anterior

Relevance to Pilates Reformer

  • Movement & Stability
  • Prevention 
  • Modification 
  • Alignment