The first part of this piece will give you a basic understanding of how the shoulder muscles work. The second part is a little more detailed for those that want to better understand the anatomy. The shoulder is the most mobile joint in the body. In this blog, we look at how the muscles in the shoulder work to provide us with strength and mobility in this joint. We will also examine why we can get shoulder pain. Then, we’ll delve into a little more detail for those that want to better understand the anatomy of the shoulder, discussing the deltoid, rotator cuff and smaller component muscles.