Low back pain is a serious syndrome with multifactorial etiology (7). In spite of many research efforts to resolve and enlighten about the issue in the past few years, there is still a major social and medical problem (4). About 60-90% of the population has suffered from low back pain throughout their lives; it tends to affect individuals mostly during their productive years (3). The causation of low back pain is related to a variety of factors, such as congenital deformities, mechanical causes, degenerative and inflammatory diseases, metabolic disturbances, microbiological inflammations, injuries, tumors, as well as toxic and psychoneurological factors (8-12). Additionally, professions that demand prolonged standing, bending, lifting and twisting, are ranked among the first to cause employees significant suffering from low back pain (15).
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