Plane of Motion
Supine Arm Adduction
Plane of Motion
Coronal
Spring Setting
Light / Medium
2 Medium Springs or
1 Light & 1 Medium Spring
Muscle Focus
Shoulder Adductors
Pectoralis Major, Latissimus Dorsi, Teres Major
Closes the arm to the body.
Resists the springs as the arms open.

Other Muscles at Play
Anterior Spinal Stabilizers provide lumbo-pelvic stabilization and keep the spine from arching off the carriage.
Hip flexors keep the legs held in the air against gravity.
Hip adductors keep the legs closed together.
Scapular depressors keep the shoulders down away from the ears.
Scapular adductors keep the scapulae flat on the carriage and retracted.
Elbow extensors keep the arms straight.
Plantar flexors keep the feet pointed.
Objectives
Enhance the strength of the shoulder adductors.
Engage the internal support system to maintain body stability as the arms extend away from it.
Ensure shoulder stability to prevent the scapula from "lifting."
Focus on breathing to synchronize the movement.