Just like the hip, the shoulder is a complex joint that is controlled by the tone and integrity of the joint capsule, surrounding muscles and ligaments, as well as the fascial layers from all other areas in the body.  When the position of the shoulder is compromised, strength is lost and the risk for injury increases.  Stop dumping load to the front of your shoulder with this simple shoulder mobilization.  This is especially true if you sit at a desk for extended periods of time with rounded shoulders.  Your shoulders, neck, thoracic spine and even lower back will thank you.