NIOSHTIC-2 Publications Search
Revised NIOSH lifting equation.
Biomechanics and ergonomics, 2nd edition. Kumar, S ed., Boca Raton, FL: CRC Press, 2007 Dec; :531-562
This chapter provides information about a revised equation developed by the National Institute for Occupational Safety and Health (NIOSH) for assessing the physical demands of certain two-handed manual lifting tasks, which was described in an article by Waters et al. (1993). The chapter contains sections describing what factors need to be measured, how they should be measured, what procedures should be used, and how the results can be used to ergonomically design new jobs or make decisions about redesigning existing jobs that may be hazardous. The chapter defines all pertinent terms and presents the mathematical formulas and procedures needed to properly apply the NIOSH lifting equation (NLE). Several example problems are also provided to demonstrate how the equations should be used. An expanded, more detailed version of this chapter is contained in a NIOSH report entitled" Applications Manual for the Revised NIOSH Lifting Equation" (Waters et aI., 1994) <a href="https://www.cdc.gov/niosh/docs/94-110/"target="_blank">https://www.cdc.gov/niosh/docs/94-110/</a>.
Manual-lifting; Manual-materials-handling; Ergonomics; Epidemiology; Back-injuries; Musculoskeletal-system-disorders; Musculoskeletal-system
Biomechanics and ergonomics, 2nd edition
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division