Where Does Tennis Elbow Come From?
It is caused by overuse of the extensor group of the forearm (or the top part of the forearm). Here, the extensor group, namely the brachioradialis, is often used and starts pulling too much on the bone. This, in turn, causes pain. The muscles themselves can also be the source of pain. From overuse, the muscles are deprived of oxygen and cannot heal. This lack of oxygen results in the tightening of the muscles, which are called trigger points.