Glenohumeral Motions

Question 1

Shoulder Flexion (Flex)- reaching overhead

Answer 1

Prime Movers: anterior head of deltoid & coracobrachialis

Secondary Movers: long head of biceps brachii & clavicular head of pectoralis major

Question 2

Shoulder Extension (Ext)- reaching into backseat

Answer 2

Prime Movers: latissimus dorsi, teres major, & posterior head of deltoid

Secondary Movers: long head of triceps brachii & sternal head of pectoralis major

Question 3

Shoulder Abduction (Abd)- jumping jacks (arms going out and up)

Answer 3

Prime Movers: middle head of deltoid & supraspinatus

Question 4

Shoulder Adduction (Add)- clicking in seatbelt

Answer 4

Prime Movers: latissimus dorsi, teres major, coracobrachialis, & long head of triceps brachii

Question 5

Shoulder External Rotation (ER)- reaching for seatbelt

Answer 5

Prime Movers: infraspinatus & teres minor

Secondary Movers: posterior head of deltoid

Question 6

Shoulder Internal Rotation (IR)- playing racket sports

Answer 6

Prime Movers: subscapularis, latissimus dorsi, teres major, & pectoralis major- both heads

Secondary Movers: anterior head of deltoid

Question 7

Shoulder Horizontal Abduction (HABD)- reaching out to side

Answer 7

Prime Movers: posterior head of deltoid, infraspinatus, teres major, & teres minor

Question 8

Shoulder Horizontal Adduction (HADD)- pushing

Answer 8

Prime Movers: pectoralis major- both heads

Secondary Movers: anterior head of deltoid & coracobrachialis