A longitudinal study of low-back pain as associated with occupational weight lifting factors.
Chaffin DB; Park KS
Am Ind Hyg Assoc J 1973 Dec; 34(12):513-525
Review of the biomechanics of weight lifting as related to low-back stresses and as the basis for the development of a Lifting Strength Rating (LSR) methodology, which is used to evaluate 103 jobs having various amounts of required two handed load lifting involving 411 people. For a period of one year following evaluation, any low back pain problems in the group are noted. The primary result of the field study is that the incidence rate of low back pain is correlated with higher lifting strength requirements as determined by assessment of both the location and magnitude of the load lifted. Recommendations are made that load lifting be considered potentially hazardous, and that the LSR methodology be used to guide corrective actions.
NIOSH Publication; NIOSH Grant; Accidents; Injuries; Physiological effects; Biodynamics; Physical stresses; Torque; Musculoskeletal disorders; Back disorders; Spinal column disorders; Ergonomics
Don B. Chaffin, Ph.D., Department of Industrial and Operations Engineering, School of Engineering, The University of Michigan, Ann Arbor; Michigan 48104
American Industrial Hygiene Association Journal
University of Michigan, Ann Arbor, Michigan