MOT548 Shoulder Competency

Normal ROM for shoulder flexion

0 to 170 degrees

Prime movers for shoulder flexion

Deltoid, pectoralis major, biceps brachii, and coracobrachialis

Origin and insertion for deltoid

Origin - lateral 1/3 of clavicle; Insertion - deltoid tuberosity of humerus

Innervation for deltoid

Axillary nerve (C5-C6)

Functional activities requiring shoulder flexion

Reaching into a cabinet or retrieving items from a high shelf

Normal ROM for shoulder extension

0 to 60 degrees

Prime movers for shoulder extension

Deltoid, latissimus dorsi, teres major, pectoralis major, and triceps brachii

Origin and insertion for latissimus dorsi

Origin - spinous processes T7-L5, sacrum, iliac crest, lower ribs

Insertion - medial lip of bicipital groove

Innervation for latissimus dorsi

Thoracodorsal nerve (C6-C8)

Functional activities requiring shoulder extension

Painting, applying wallpaper, or erasing a vertical chalkboard

Normal ROM for shoulder abduction

0 to 170 degrees

Prime movers for shoulder abduction

Deltoid and supraspinatus

Origin and insertion for supraspinatus

Origin - supraspinous fossa of scapula

Insertion - greater tubercle of humerus

Innervation for supraspinatus

Suprascapular nerve (C5-C6)

Functional activities requiring shoulder abduction

Watering a garden or playing frisbee

Normal ROM for shoulder horizontal adduction

0 to 30/50 degrees

Prime movers for shoulder adduction

Latissimus dorsi, teres major/minor, infraspinatus, pectoralis major, triceps, coracobrachialis, deltoid

Origin and insertion for pectoralis major

Origin - medial clavicle, sternum, costal cartilages 1-6

Insertion - lateral lip of bicipital groove

Innervation for pectoralis major

Lateral and medial pectoral nerves

Functional activities requiring shoulder adduction

Carrying a football, groceries, or textbooks

Normal ROM for shoulder internal rotation

0 to 70 degrees

Prime movers for shoulder internal rotation

Deltoid, latissimus dorsi, teres major, subscapularis, and pectoralis major

Origin and insertion for subscapularis

Origin - subscapular fossa (costal surface of scapula)

Insertion - lesser tubercle of humerus

Innervation for subscapularis

Upper and lower subscapular nerves (C5-C6)

Functional activities requiring shoulder internal rotation

Texting, peeling fruit, or chopping with utensils

Normal ROM for shoulder external rotation

0 to 90 degrees

Prime movers for shoulder external rotation

Deltoid, infraspinatus, and teres minor

Origin and insertion for infraspinatus

Origin - infraspinous fossa of scapula

Insertion - greater tubercle of humerus teachmeanatomy+2

Innervation for infraspinatus

Suprascapular nerve (C5-C6)

Functional activities requiring shoulder external rotation

Playing ping pong, tennis, or rowing