Problems and solutions in manual materials handling: the state of the art.
Ergonomics 1992 Jul; 35(7-8):713-728
Aspects of manual materials handling (MMH) were reviewed. The prevalence of back injuries due to MMH and the economic impact of such injuries was examined. The design of an efficient MMH system was described. The author recommends that the system take into account four components: the worker, the task, the tools and equipment, and the environment. A safe handling system involves designing MMH tasks which are within the capacities of the workers performing them. Methods for the design of such systems were presented. Three design approaches, biomechanical, physiological, and psychological, were described and models of each were evaluated. The advantages and limitations of each approach were discussed, and different weight recommendations were determined using the different approaches. The use of a comprehensive model to determine lifting limits which incorporates all three design approaches was described.
Ergonomics; Manual-materials-handling; Manual-lifting; Back-injuries; Injury-prevention; Occupational-accidents; Biomechanics;
Author Keywords: Biomechanics; Physiology; Psychophysics; Lifting limits
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