In part one of this two part blog, Tri-Plane Integrated Shoulder Mobility Patterns, discussed the interrelationship of how the hips impact the shoulder function.  This post will address the tri-plane stability component for shoulder movement patterns.  As stated in part one, do not think stability and mobility are opposite ends of the movement spectrum.  In actuality, they depend upon one another.  Under normal, healthy conditions, if there is good mobility, the tissue will load eccentrically and allow an optimal unload concentrically.  This will improve functional actions in three planes of motion through the three phases of movement; deceleration (eccentric loading), stabilization (isometric), and acceleration (concentric unloading).

The Tri-Plane Shoulder Mobility can be modified based upon the limitations, compensations, and idiosyncrasies of the client.  Feel free to advise your clients to slow the movements, limit the range of motion and then gradually increase the range, or limit the plane of motion based upon where the client may be limited in movement.

Triangulated Shoulder Press works the shoulder girdle in three planes of motion and associates the the shoulder joint with the scapula, through the thoracic spine, to the hips.  This movement pattern is greatly dependent upon hip mobility in three planes of motion.  If a hip is limited in motion, do not allow the client to work through that plane of motion with the Triangulated Shoulder Press until the movement improves.  When doing these exercises, start with light weight and do 2-3 repetitions to each vector.  Slowly increase the range of motion and the weight loads.  Remember, the further away from the mid-line the client presses, the greater the loading on the tissues and joints.  Lastly, these patterns will increase strength of the abdominal complex in three planes of motion as they react to control and transmit the forces upon the body from the top down and bottom up.
Keep in mind, this is an advanced movement pattern and not a substitute for traditional shoulder stability exercises.  This  is a progressive approach to augment the shoulder stability work and should be included for those clients that can handle this integrated movement pattern.
Please let us know how this works for your clients.  Good luck and good health!