Hook Stance

Shoulder Girdle:
Left: Retraction - Rhomboids (Isometric)
Right: Retraction - Rhomboids (Isometric)
Shoulder Joint:
Left: Shoulder Flexion - Anterior Deltoid, Biceps Brachii, Coracobrachialis (Isometric)
Right: Shoulder Flexion - Anterior Deltoid, Biceps Brachii, Coracobrachialis (Isometric)

Elbow Joint
Left: Flexion Biceps Brachii, Brachialis, Brachioradialis (Isometric)
Right: Flexion Biceps Brachii, Brachialis, Brachioradialis (Isometric)

Wrist
Left: Neutral
Right: Neutral

Hand
Left: Finger Flexion Flexor Digitorum Profundus, Flex. Dig. Superficialis, Palmaris Longus, Flexor Pollicus Longus (Isometric)
Right:  Finger Flexion Flexor Digitorum Profundus, Flex. Dig. Superficialis, Palmaris Longus, Flexor Pollicus Longus (Isometric)