Shoulder MusclesShoulder MusclesSports Medicine ISports Medicine I

Shoulder MovementsShoulder Movements FlexionFlexion ExtensionExtension AbductionAbduction AdductionAdduction Horizontal AbductionHorizontal Abduction Horizontal AbductionHorizontal Abduction Internal Rotation (0 and 90)Internal Rotation (0 and 90) External Rotation (0 and 90)External Rotation (0 and 90)

Shoulder MovementsShoulder Movements CircumductionCircumduction ElevationElevation DepressionDepression ProtractionProtraction RetractionRetraction

BicepsBiceps FlexionFlexion Supination Supination

CoracobrachialisCoracobrachialis AdductionAdduction Assists flexion and Assists flexion and

pronationpronation

DeltoidDeltoid Anterior Fibers Anterior Fibers Middle FibersMiddle Fibers Posterior FibersPosterior Fibers Flexion, horizontal Flexion, horizontal

adduction, internal adduction, internal rotation, external rotation, external rotationrotation

InfraspinatusInfraspinatus External rotationExternal rotation(rotator cuff)(rotator cuff)

Lattisimus DorsiLattisimus Dorsi Extends armExtends arm

Levator ScapulaeLevator Scapulae Elevates scapulaElevates scapula

Pectoralis MajorPectoralis Major Flexes upper armFlexes upper arm Adducts armAdducts arm

Pectoralis MinorPectoralis Minor Raises ribs for Raises ribs for

inspirationinspiration

RhomboidsRhomboids Retraction and Retraction and

rotation of scapularotation of scapula

Serratus AnteriorSerratus Anterior Rotates scapula for Rotates scapula for

abductionabduction

SubscapularisSubscapularis Internal rotationInternal rotation(rotator cuff)(rotator cuff)

Teres MajorTeres Major Assists in extensionAssists in extension

Teres MinorTeres Minor External rotationExternal rotation(rotator cuff)(rotator cuff)

TrapeziusTrapezius RetractionRetraction Upward rotationUpward rotation Elevates scapulaElevates scapula

TricepsTriceps Extends forearm Extends forearm

and upper armand upper arm