What specifically can The Pronator do for you?

Primary movements

• Pronation: loosen a screw, flip a pancake, loosen a light bulb
• Supination: tighten a screw, screw in a light bulb
• Radial Deviation: throw a frisbee, set a fish hook, unscrew a jar
• Ulnar Deviation: hammer in a nail, throw a dart, wash dishes
• Elbow Flexion: carrying a bag of groceries, picking up a child, pulling up your trousers
• Elbow Extension: pushing open a heavy door, transferring out of a chair, throwing a shot put
• Shoulder Internal Rotation: closing a door, pouring a gallon of milk, throw a baseball, serve a tennis ball, spike a volleyball
• Shoulder External Rotation: open a cabinet, majority of kung fu moves, pass a dish, shake a rug
• -note some of these motions will be reversed for left handed people

The Pronator can improve the strength of many forearm, arm and shoulder muscles This list does not end here. We all know that the foundation of being a therapist is creativity based on kinesiology. Everyday we are challenged to adapt treatment to a patient’s needs, and to think outside the box. The Pronator’s potential to enhance your patients’ ability to excel at functional tasks is limited only by your imagination. Principle Motions and Corresponding Muscles1 Have an injured muscle or are in need of strengthening a specific motion? Look at the charts below to identify the movements The Pronator can help strengthen and the muscles that perform each motion.

Principle Motions and Corresponding Muscles

Have an injured muscle or are in need of strengthening a specific motion? Look below to identify the movements The Pronator can help strengthen and the muscles that perform each motion.

Motions	Primary muscle activation	Secondary muscles
Pronation	Pronator quadratus	Flexor carpi radialis
	Pronator teres	Palmaris longus
		Brachioradialis when arm is supinated
Supination	Supinator	Radial wrist extensors
		Extensor pollicis longus
	Biceps Brachii	Extensor Indicis
		Brachioradialis when arm is pronated

Note: the Supinators as a group are approximately 25% stronger than the Pronator group. This is due to a near-double cross-sectional area of the Supinator group. Keep in mind, when starting to strengthen a client or patient, a weight that is easy turning palm up, may strain the Pronators while turning palm down.

The Pronator is an ideal device to strengthen the upper extremity.

Examine the list of upper extremity motions below to see how The Pronator can fit your needs.

Motions	Muscles
Radial Deviation	Extensor capri radialis (longus and brevis)
	Extensor pollicis (longus and brevis)
	Flexor carpi radialis
	Abductor pollicis longus
	Flexor pollicis longus
Ulnar Deviation	Extensor carpi ulnaris
	Flexor carpi ulnaris
	Flexor digitorum superficialis
	Flexor digitorum profundus
	Extensor digitorum
Elbow Flexion	Biceps brachii (long and short head)
	Brachialis
	Brachioradialis
	Pronator teres
Elbow Extension	Triceps brachii
	Anconeus
Shoulder Internal Rotation	Subscapularis
	Anterior deltoid
	Pectoralis major
	Latissimus dorsi
	Teres major
Shoulder External/Lateral Rotation	Infraspinatus
	Teres minor and posterior deltoid