Scientific Support Documentation for the Revised 1991 NIOSH Lifting Equation:Technical Contract Reports

摘要

The report was a collection of individual documents which provided evidence to beused in the establishment of safe lifting techniques. The specific areas covered by these individual reports included the physiological basis for manual lifting guidelines; the epidemiological basis for manual lifting guidelines; the biomechanical basis for manual lifting guidelines; and the psychophysical basis for manual lifting guidelines. Information was contained on the following topics: causes of low back pain; comparative analysis of risk factors; job risk factors; preventive approaches; the occupational biomechanics of load lifting; biomechanical basis for back injury; compressive strength of lumbar spinal column; biomechanical models; effect of dynamic factors on spinal stress; effect of task variables on stresses to spine; factors affecting local muscle strength and fatigue; metabolic limits in lifting tasks; the relationship between psychophysically acceptable weights and the metabolic cost of lifting; and assumptions made in generating frequency correction factors for the lifting guidelines.