The shoulder is a complicated joint. This is because it is one of the more mobile joints in the body.
It is actually made up of four joints. Without getting into too much detail, the arm attaches to the shoulder blade, which is actually “floating” on the back of our bodies. The shoulder blade is held in place by various muscles surrounding it.
As the joint between the arm and the shoulder blade moves, the shoulder blade itself moves in various directions, allowing a huge amount of movement. The problem with this much movement is that it exposes the shoulder to injury. Shoulder injuries are common everywhere you look.
Many of these injuries can be prevented by understanding how to use the shoulder properly.
It is important to understand how to pack your shoulder blade. What this means is placing your shoulder blade in the safest position in order to push and pull. As stated earlier, the shoulder blade floats in a position on the back. When we attempt to reach something it will move, slide or tilt toward that object in order to give the joint between the arm and shoulder blade more mobility.
Once something needs to be pulled or pushed, it is best to pull the shoulder blade back and down to keep it stationary while the arm and back muscles do the work. This is called “packing” the shoulder. To do this, stick your chest out. Now, stick it out even more. Have someone place their finger in the middle of your upper back. Try to squeeze their finger with your shoulder blades.
At the same time, pull your shoulders away from your ears, pulling your shoulder blades down. This is the packed position. You will be able to push and pull objects much more efficiently in this position.