DEVELOPMENT OF A FIELD METHOD FOR QUANTITATIVE ASSESSMENT OF LOW BACK STRESSES

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Authors
  1. Norman, R.W.
Corporate Authors
Waterloo Univ, Waterloo ONT (CAN) Dept of Kinesiology;Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A method for objectively assessing the safety of lifting tasks has been developed. It consists of a software package (WATBAK) which is capable of receiving data from still pictures of a lifting task. It incorporates these data into a computer model of the human body to yield the sizes of reaction forces and moments of force at the elbow, shoulder, L4/L5 level on the lumbar spine, hip, knee and ankle joints and estimates the size of the compressive and shear forces on the L4/L5 intervertebral disc. The compressive and shear forces are compared with tolerance limits reported in the literature and the task is declared "safe" or "unsafe" within the limits of the accuracy of the model and of the stress tolerance data available.
Date of publication
15 Oct 1984
Number of Pages
105
DSTKIM No
85-01540
CANDIS No
46352
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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