Bibliography: leaves 193-200. / ix, 200 leaves ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Argues that pain or discomfort so widely experienced in "normal" populations cannot, in all cases, have a pathological basis and that, therefore, there must be a non pathological cause. As well, a possible aetiology is suggested for other activity-related conditions which have not yet received generally accepted explanations such as Fibromyalgia. / Thesis (Ph.D.)--University of Adelaide, Dept. of Surgery, RAH, 1996