MOVEMENTS OF SHOULDER JOINT
MOVEMENTS OF SHOULDER JOINT
- Movement in every direction (Flexion, extension, abduction, adduction, rotation, circumduction)
- Spinal Cord regulating Shoulder movements (C5, C6, C7 & C8)
- Flexion, Abduction, & lateral rotation (C5, C6,).
- Extension, Adduction, & Medial rotation is (C6, C7, C8)
- Movements that take place during abduction of shoulder are axial rotation of humerus at acroclavicular joint ,elevation of humerus & movement at clavicular end of sternoclavicular joint.
| TYPE OF MOVEMENT | PLANE OF MOTION | AXIS OF MOTION | MUSCLES INVOLVED | HUMERAL HEAD GLIDING | RANGE OF MOTION | FACTOR LIMITING |
| Flexion | Saggital plane | Transverse axis |
Pectoralis Major,Ant. fiber of deltoid,
Coraco-brachialis, Biceps |
Posteriolaterally in glenoid cavity | 0-90º |
– Inferior Glenohumeral ligament,
– Tightness of posterior joint capsule
|
| Extension | Saggital plane | Transverse axis |
Latissimus dorsi,Teres major,Post. fibers
of deltoid, Triceps |
Anteriomedially in glenoid cavity | 0-45º or 60º |
– Superior & medial
– gleno-humeral – ligament |
| Abduction | Frontal plane | Saggital axis | Deltoid, Supraspinatus | Inferiorly in glenoid cavity |
Total-0-165º or 175º
Full internal rotation of humerus0-60º Full external rotation of humerus0-90º |
-Inferior glenohumeral
ligament
-Tightness of the inferior
– joint capsule of the
gleno-humeral joint
|
| Adduction | Frontal plane | Saggital axis |
– Subscapularis,Pectoralis Major,
– Latissimus dorsi, Teres major |
Superiorly in glenoid cavity | – | Trunk |
| Internal Rotation | Transverse plane | vertical axis | – Subscapularis,Pectoralis Major, – Latissimus dorsi, Teres major |
Posteriolaterally in glenoid cavity |
– 0-70º as the arm at 90º of
shoulder abduction and 90º
elbow flexion
-If the elbow is extended, shoulder
rotation occurs simultaneously with forearm rotation.
|
Posterior capsule |
| External Rotation | Transverse plane | vertical axis | Infraspinatus, Teres minor | Anteriomedially in glenoid cavity |
– 0-90º as the arm at 90º of
shoulder abduction and 90º
elbow flexion
– If the elbow is extended, shoulder
rotation occurs simultaneously with
forearm rotation.
|
– Coracohumeral ligament
– 3 glenohumeral ligaments
|
NOTE: Circumduction:it is a combination of flexion, abduction, extension, and adduction or in the reversed sequence
- Glenohumeral flexion -> abduction ->extension ->adductiong
- Glenohumeral extension ->abduction -> flexion -> adduction
Exam Important
- Movements that take place during abduction of shoulder are axial rotation of humerus at acroclavicular joint ,elevation of humerus & movement at clavicular end of sternoclavicular joint.
- Movement in every direction (Flexion, extension, abduction, adduction, rotation, circumduction)
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