Scapular Rotation During Arm Elevation - Anatomy & Biomechanics Guide #3048609 (License: Personal Use)

This anatomical illustration depicts three key positions of scapular upward rotation during active arm elevation: 0° (at rest), 90° (mid-range), and 180° (maximum overhead). The diagrams highlight the coordinated action of the serratus anterior, trapezius, and other periscapular muscles, along with the acromioclavicular and sternoclavicular joints. Bone structures-including the scapula, clavicle, humerus, and rib cage-are shown in relation to muscle activation patterns essential for shoulder stability and mobility.

Used in physical therapy, orthopedic education, and sports medicine resources to teach scapulohumeral rhythm, diagnose dyskinesis, or guide rehabilitation exercises. Matches user intent for understanding shoulder biomechanics, injury prevention, or optimizing overhead movement performance.