ABSTRACT
Psychosocial factors may comprise anything from personality to job organization.
The situation is further complicated by the fact that there are three different endpoints, one social (disability), one psychological (illness) and one medical/ physiological (disorder). Although these are interrelated it creates confusion in the literature that they are often mixed. Similarly there are three different kinds of mechanisms which may tie psychosocial factors to symptoms in the musculoskeletal system (see below). To complicate matters even more, the mechanisms generating acute conditions in the locomotor system are to a great extent other than those perpetuating pain and creating chronic conditions. Often these two groups of mechanisms are mixed.
