The system consists of the bones and muscular structure. It is the domain of “bone-setters”. By these bonesetters often only the back is treated.
The body has a good possibility to compensate. As a result, one often does not even notice that there are problems. Until the moment you suddenly go “through your back.” The body could no longer compensate and a very slight movement involves into a sudden fault.
Also, RSI, such as tennis elbow, usually have their origin in the spine, shoulder girdle and / or mobility of the clavicle. Then the elbow itself needs not be treated.
A nice touch is that all forms of manual therapy, such as Chiropractics origins in osteopathy.