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8/10/2019 Biomechanics of the Shoulder Complex
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BIOMECHANICS OF
THE SHOULDERCOMPLEX
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SternumClavicula
Scapula
Humerus
Glenohumeralis
Acromioclavicularis Sternoclavicularis
Scapulothoracalis
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GLENOHUMERAL JOINT
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Angle ofinclination
Angle of torsion 30
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Greater tuberosity
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FRONTAL PLANE
SAGITTAL PLANESCAPULLAR PLANE
30 - 45 degrees
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: The labrum broadens and makes deeper the glenoid socket (top image).The labrum also acts as an anchoring point for the ligaments of theshoulder (lower image).
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The normal main ligament of the shoulder (inferior glenohumeral ligament) supports thehumeral head like a hammock supports a person (top image). With arm rotation, the
ligament (hammock) moves forward and backward to keep the ball in the socket duringthis rotation (lower image).
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Horizontal plane
30-45120-135
15-3090
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135
45
Flexion and extension in horizontal plane
extension
flexion
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Flexion-extension
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Sagittal plane
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100-120 degrees30 degrees
Sagittal plane
Extension Flexion
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Abduction - adduction
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90-110
Tvolts
Grdls
60
Befel fordts Neutrlis slapocka sk
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Grdls
Tvolts
Passzv
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Tvolts
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75o
40o
sternoclavicularis
20o acromioclavicularis
Frontal plane
120o glenohumeral
Abduction
90 - 120o135o
90o active
120o passive
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TVOLTSABDUCTION
ROLLING SLIDING
active passive
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Rotci
50 120
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70 50
30 20
Kifel Befel
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Throwing arm Contralateral
Herrington 1988
External and internal rotation
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SCAPULOTHORACIC JOINT
Tipping of the scapula
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Depression
Elevationpp g o e sc pu
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Kzelts -tvolts
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Winging of the scapula
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g g p
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Downward rotation Upward rotation
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MOVEMENT IN STERNOCLAVICULAR
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MOVEMENT IN STERNOCLAVICULARAND ACROMIOCLAVICULAR JOINTS
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CENTRE OF ROTATION
30
30
MOVEMENT IN SCAPOLOTHRACIC
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MOVEMENT IN SCAPOLOTHRACICAND GLENOHUMERALIS JOINTS
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60
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60
30
30
Scapula forgs elre - htra
Scapula forgs a transverzlistengely krl
Scapula forgs oldal skban:emelkeds - sllyeds
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STERNOCLAVICULARIS IZLET
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STERNOCLAVICULARIS IZLET
Movement in sternoclavicularis joint
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15
45 / 15
30 - 45
Rotation about thelongitudinal axis
Movement in sternoclavicularis joint
Elevation and
depression
Anteriorpsoteriormovement
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Az egyes izmok bekapcsoldsa a
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Az egyes izmok bekapcsoldsa amunkavgzsbe
2005. 04. 13.
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Az egyes izmok bekapcsoldsa a
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Az egyes izmok bekapcsoldsa amunkavgzsbe
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0 03
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0.05 Bw
0.3 m
0.03 m
0.6 m
0.075 BwFc = Fp sin
Winging of the scapula
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Winging of the scapula
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Tipping of the scapula
1999.11.16.
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