One of the great ways to develop both shoulder mobility and shoulder strength on a pull up bar is to…just hang. Once you develop your foundational grip strength needed for safety, you can explore some progressions such as “active” hangs with rocking motions or hand and change of direction switches. A step-by-step overview is given designed for bar beginners. Note that “brachiation” (hanging like a monkey) is one of THE BEST ways to develop healthy shoulders in children. Brachiation hanging can also be a valid way to recondition shoulders in adults with the right regressions and progressions.