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Low back musculoskeletal disorders are common and costly. Although the causes of low back disorders are complex, substantial scientific evidence identifies some work activities and awkward postures as significantly contributing to the problem. In the United States, back disorders account for 27 percent of all nonfatal occupational injuries and illnesses involving days away from work. Prevention activities should be undertaken based on current knowledge, but important new research efforts are needed to assure that work-related low back disorders are successfully prevented and treated. For some occupations and tasks, there is a pressing need for more information about safe levels of exposure and for further validation of promising intervention approaches such as mechanical lifting devices for nursing aides. |
