The Shoulder Complex Applied Kinesiology 420:151.
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Transcript of The Shoulder Complex Applied Kinesiology 420:151.
![Page 1: The Shoulder Complex Applied Kinesiology 420:151.](https://reader033.fdocuments.us/reader033/viewer/2022061604/5519cea7550346443e8b4997/html5/thumbnails/1.jpg)
The Shoulder Complex
Applied Kinesiology420:151
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Agenda
Introduction to the shoulder complex
Articulations of the shoulder complex
Scapulohumeral rhythm
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Introduction to the Shoulder Complex
Shoulder girdle + shoulder joint = shoulder complex
Shoulder girdle: Scapula, clavicle and articulations
Shoulder joint: Humeral head and glenoid fossa of
scapula
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Anterior/posterior connections?
Same/different than hip girdle?
Figure 5.7
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Agenda
Introduction to the shoulder complex
Articulations of the shoulder complex
Scapulohumeral rhythm
![Page 6: The Shoulder Complex Applied Kinesiology 420:151.](https://reader033.fdocuments.us/reader033/viewer/2022061604/5519cea7550346443e8b4997/html5/thumbnails/6.jpg)
Articulations of the Shoulder Complex
Shoulder girdle: Acromioclavicular joint Sternoclavicular joint
Shoulder joint
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Acromioclavicular (AC) Joint
Joint classification: Diarthrodial nonaxial
Joint structure: Ligamentous reinforcement Fibrocartilage disk
Joint function: Rotation about 3 cardinal planes
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Gliding in which plane?
Rotation in which plane?
Rotation in which plane?
Rotation in which plane?
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Sternoclavicular (SC) Joint Joint classification: Diarthrodial nonaxial Joint structure:
Ligamentous reinforcement Fibrocartilage disk Subclavius
Joint function: SC joint moves in response to AC joint
movement Movements?
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SC Joint
AC elevation SC elevation AC depression SC depression AC protraction SC protraction +
anterior rotation AC retraction SC retraction +
posterior rotation
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Shoulder Joint Joint classification: Diarthrodial
multiaxial ball and socket Joint structure:
Lax joint capsule Limited ligamentous support Shallow glenoid fossa Minimal muscular reinforcement
Rotator cuff Bursae
Joint function: Great mobility Poor stability
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Agenda
Introduction to the shoulder complex
Articulations of the shoulder complex
Scapulohumeral rhythm
![Page 15: The Shoulder Complex Applied Kinesiology 420:151.](https://reader033.fdocuments.us/reader033/viewer/2022061604/5519cea7550346443e8b4997/html5/thumbnails/15.jpg)
Scapulohumeral Rhythm As the shoulder joint moves, the
shoulder girdle also moves greater ROM
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Scapulohumeral Rhythm Abduction/Flexion of shoulder joint
AC = Up Rot., SC = Post Rot., elevation Adduction/Extension of shoulder joint
AC = Down Rot., SC = Ant Rot, depression Hyperextension of shoulder joint
AC = Up tilt, elevation, SC = Ant Rot, elevation External rotation of humeral joint
AC = Retraction, SC = Minimal retraction Internal rotation of humeral joint
AC = Protraction, SC = Minimal protraction Horizontal adduction of humeral joint
AC = Protraction, SC = Protraction Horizontal abduction of humeral joint
AC = Retraction, SC = Retraction