Maya Abady BPT, MmuscSPort

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Maya Abady BPT, MmuscSPort The Shoulder Girdle Maya Abady BPT, MmuscSPort

חגורת הכתף: מורכבת מ4 מפרקים חגורת הכתף: מורכבת מ4 מפרקים 3 מפרקים סינוביאלים: מפרק הזרוע: Glenohumeral Joint מפרק שיא הכתף והבריח: Acromioclavicular Jt מפרק החזה והבריח: Sternoclavicular Joint מפרק לא אמיתי scapulothoracic joint Neumann

Proximal stabilizers & distal mobilizers Start from spine, cranium, ribs Insert to Scap & clavicle Ser.Ant, Trap Start from scap & clavicle Insert on Humerus/ forearm Deltoid, Biceps Brachii

The static locking mechanism of the GH Joint during standing Static stability in the standing resting position: humerus is stable and essentially compressed against the glenoid fossa Gravity is pulling humeral head downward as the Superior Capsular Ligament is maintaining a taut position; the joint is “locked” The glenoid fossa is maintained in a slightly UR position

Compression force in GH Joint Static Locked Position (SCS) Superior capsular structure Compression Force (CF)

The Brachial Plexus (C3-T1 nerve roots)

Scapulo-thoracic “joint” Primary movements: Elevation Depression Upward rotation Downward rotation Protraction Retraction http://www.acefitness.org/certifiednewsarticle/2384/correct-cues-for-scapular-motion/

Scapulo-thoracic motion

Sternoclavicular Joint Complex Joint: דיסק: שומר על יכולת ספיגת זעזועים ויציבות המפרק Saddle joint 2 df

Acromioclavicular Joint (A-C jt) Complex Joint דיסק/חלקי (בד"כ) Plane joint (slide only) Stabilizing ligaments Takes part in scapular movements Helps with “rotational adjustments” of the scapula

Stabilization of A-C jt Newman Fig 5-25 Deltoid, UpperTrap Rhomboids Lower Trap חיבור בין הסקפולה לגו. הסקפולה ממוקמת על חלקו האחורי העליון של כלוב הצלעות. שרירים אלה מאפשרים יציבות של הסקפולה על כלוב הצלעות. כ40% מהתנועות בחגורת הכתף, מקורן בתנועת השכמה על כלוב הצלעות. חוסר תפקוד של חיבור זה, יגרום למגבלה חמורה בתנועת הכתף. בגלל שזהו החיבור הגרמי היחיד בין חגורת הכתף לשלד יש צורך ברקמות מייצבות וחזקות אשר מאפשרות גם תנועה ואלה הן הרצועות המתוארות בתמונה ולעיתים גם דיסק.

Scapula on Clavicle mvt Neumann Fig 5-19

Scapulaothoracic elevators Levator Scapula Elevators: Upper Trap Lev Scap Rhomboids minor Rhomboid major Fig 5-40 Neumann

Scapulothoracic Depressors Lower Trap Lat Dorsi Pec Minor Subclavius Neumann Fig 5-42

Scapulothoracic Protractor Serratus anterior Figure 5-44, pg.154

Scapulothoracic retractors Middle Trap Rhomboids Lower Trap Neumann Fig 5-45

Scapulothoracic Upward Rotation Serratus Ant Upper & Lower Trap Downward Rot: Rhomboids Pec Minor

Summary of Sc-Tx movers Neumann pg. 151

Glenohumeral Joint 3 planes of movement, 3df additional 4th motion- horizontal add and abduction or horizontal fl and ext “Scapulo-humeral Rhythm” during Flexion and Abduction (in Abduction 2:1 ratio of GH:Scap) http://www.youtube.com/watch?v=H4nfQEeJmFo

G-H Joint enlarged socket: Neumann fig5-26

GH Abduction Frontal plane; ant-post axis Normal range: 0-120o ER accompanies Abduction This allows the greater tubercle of the humerus to pass posterior to the acromion process avoiding mainly the supraspinatus tendon and other contents in the subacromial space. Scapula begins to move at 30° of GH Abd. Full abduction requires 60° of Upward Rotation of the scapula.

180 degree of shoulder abduction 600 Scap. upward rotation 1200 GH Abd (2:1 ratio) Other: Humerus ER Sterno-clav jt: Post.rot +Elev+ post glide Scapula ER, post tilt Figure 5-35

Shoulder Muscles stabilizers and mobilizers work together during abduction Stabilize the scapula during Abduction Figure 5-48

Shoulder stabilizers in Abduction Rotator Cuff Muscles (SITS): Shoulder stabilizers in Abduction Rotator Cuff Muscles (SITS): Stabilizers Neumann Fig 5-51 Neumann Fig 5-53

2. Distal Mobilizers: originate on the scapula and clavicle and insert on the humerus or forearm Ex. Deltoid Biceps Brachii Figure 5-46

Impingement (ssp, subacromial bursa; LHB, sup capsule) Figure 5-32

Neumann

Shoulder ADDuction: Inferior roll, Superior glide Posterior view Anterior view Figur 5-55 Neumann Fig 5-57

Summary FULL Abduction Kinematics Scap-Thoracic rhythm 2:1 1800 Abd= 1200 GH + 600 Scap upward rot. 600 upward rotation= S-C elevation + A-C upward rotation Clavicle retraction (post glide) Scap post tilt + ER Clavicle post rot GH External rotation http://www.youtube.com/watch?v=H4nfQEeJmFo Based on Box 5-1, pg 150

GH Joint Flexion Sagittal plane; med-lat axis Normal range: 0-180o 0-120o within the GH joint and the rest (60o) is enabled by UR of the scapulothorasic joint The scapula begins to move at 60o of the range Arthrokinematics: primarily spinning of humeral head in glenoid fossa.  tightens the capsule. (if post capsule too tight= anterior instability) Figure 5-47, Neumann

Shoulder Crossed Syndrome http://chiropractienoordzee.nl/?attachment_id=425

Shoulder Crossed Syndrome (upper cross syndrome) https://coachrouse.wordpress.com/2011/10/20/janda%E2%80%99s-postural-crossed-syndromes/

Janda’s Upper Crossed Sydnrome https://www.painscience.com/articles/posture.php

השלכות כאבי ראש, סחרחורות, לסת כאבי צוואר מעורבות דיסק/ שורש עצב Cx פציעות כתף )צביטה, חוסר יציבות, קרע( פציעות גפה עליונה דיספונקציה נשימתית סימנים אוטונומיים )Tx( אחר http://www.drserbinski.ca/blog/common-muscle-imbalances-upper-crossed-syndrome-lower-crossed-syndrome

האם זה מספיק? http://buffalofamilychiropractor.com/upper-crossed-syndrome-pain-neck

מאיפה מתחילים? https://www.painscience.com/articles/posture.php