Low back pain is the most prevalent form of musculoskeletal discomfort reported by adults.1 The prevalence of LBP is not as dependent on the degenerative processes associated with aging as might be expected. Low back pain continues through young and middle adulthood, but at the sixth decade, it appears to plateau and then decline in the later decades of life.2 Socioeconomic factors are also important to consider because they are recognized as potential risk factors for lumbar pain and disability, ultimately contributing to its direct and indirect costs. A higher prevalence of LBP has been linked to such factors as lower educational levels,1 unskilled laborers,3 and workers with physically demanding job responsibilities.4 The total costs of LBP in the United States exceed $100 billion per year with two-thirds being indirect costs due to lost wages and reduced productivity.5