The tricep is an often overlooked shoulder extensor that is important for supporting scapular position. The movement demonstrated in this video trains the triceps as a shoulder and elbow extensor but more importantly also challenges the muscles that create and maintain scapular depression. Therefore, this exercise has little to do strengthen a specific muscle but instead focus on stabilizing a position. In this process muscles do get strengthened but not in isolation, instead in a manner that is valuable to postural function and can be transferrable to other tasks where anti-forward shoulder posture is desirable.