This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Psychophysical Based Models for the Prediction of Lifting Capacity of the Industrial Worker
Annotation ability available
Sector:
Language:
English
Abstract
As science and technology become more sophisticated and with the rapid computation capabilities of the modern computer available, it becomes both possible and economically feasible to scinetifically study man and his interaction with his working environment. It is now possible for a person seeking employment to expect and obtain a position which will not be unnecessarily hazardous to his immediate health or have detrimental effects over the long run.
Manual materials handling is the contributor of over 400,000 back injuries suffered in the U.S. each year. This research is directed at determining the appropriate operator variables to measure for predicting the permissible weight of lift for 3 ranges of lift, floor to knuckle height, knuckle height to shoulder height, and shoulder height to reach height.
A modified psychophysical procedure was used during which the subjects were instructed to adjust the weight in a tote box to the maximum wieght they could lift repetitively without excessive strain or fatigue. The lifting exercise consisted of two 20-minute periods. Ninety-five of the 135 used subjects for the experiment were provided by industries and consisted of individuals, both male and female, whose daily activity involved the manual lifting of weights. The remaining subjects were students who were used in floor to knuckle height lifting range.
Based on the data obrtained, the lifting capacity of the worker was determined for the different ranges of lift. In addition, predictive models were developed based on the operator variables measured.
Authors
Citation
Dryden, R., Ayoub, M., and Knipfer, R., "Psychophysical Based Models for the Prediction of Lifting Capacity of the Industrial Worker," SAE Technical Paper 760080, 1976, https://doi.org/10.4271/760080.Also In
References
- Asmussen Erling Hansen Ole Lammert Ole “The Relation between Isometric and Dynamic Muscle Strength in Man,” Hellerup, Denmark Danish National Association for Infantile Paralysis 1965
- Asmussen Erling Poulsen Ellen Rasmussen B. “Quantitative Evaluation of the Activity of the Back Muscles in Lifting: Communication No. 21,” Hellerup, Denmark Danish National Association for Infantile Paralysis 1965
- Chaffin D. B. Moulis E. J. “An Empirical Investigation of Low Back Strains and Vertebrae Geometry,” Journal of Biomechanics 2 89 96 1969
- Dryden R. D. “A Predictive Model for the Maximum Permissible Weight of Lift from Knuckle to Shoulder Height,” Texas Tech University Lubbock, TX August 1973
- Emanuel I. Chaffee J. W. Wing J. “A Study of Human Weight,” Lifting Capabilities for Loading Ammunition into the F-86H Aircraft. WADC Tech. Report AD-97206 1956
- Grandjean E. “Fitting the Task to the Man,” London Taylor and Francis, Ltd. 1969
- Herrin G. Chaffin D. Mack R. “Proceedings of workshop on the Hazards of Manual Materials Handling,” 1974
- Hoerl A. E. Kennard R. W. “Ridge Regression: Biased Estimation for Non-orthogonal Problems,” Technometrics 12 1 55 February 1970
- Knipfer R. E. “Predictive Models for the Maximum Acceptable Weight of Lift,” Texas Tech University Lubbock, Texas August 1974
- McDaniel J. W. “Prediction of Acceptable Lift Capability,” Texas Tech University Lubbock, TX 1972
- Martin J. B. Chaffin D. B. “Biomechanical Computerized Simulation of Human Strength in Sagittal-Plan Activities,” AIIE Transactions March 1972
- “Maximum Permissible Weight to be Carried by One Worker,” International Labour Organization Office Geneva 1965 1966 1967
- Muller E. A. “Occupational Work Capacity,” Ergonomics 5 1 445 452 1962
- Poulsen E. “Prediction of Maximum Loads in Lifting from Measurements of Muscular Strength: Communications No. 31,” Hellerup, Denmark Danish National Association for Infantile Paralysis 1970
- Saunders P. K. “Ridge Regression,” Industrial Engineering Department Texas Tech University June 1973
- Snook S. H. Ciriello V. M. “Maximum Weights and Work Loads Acceptable to Female Workers,” Journal of Occupational Medicine 16 8 August 1974
- Snook S. H. Irvin C. H. Bass S. F. “Psychophysical Studies of Physiological Fatigue Criteria,” Human Factors 11 3 291 300 1969
- Snook S. H. Irvin C.H. Bass S. F. “Maximum Weights and Work Loads Acceptable to Male Industrial Workers while Performing Lifting, Lowering, Pushing, Pulling, Carrying, and Walking Tasks,” American Industrial Hygiene Conferences in Denver, CO May 13 1969
- Snook S. H. Irvine C. H. “Maximum Acceptable Weight of Lift,” American Industrial Hygiene Association Journal 1967 28 322
- Snook S. H. “Criteria for Manual Materials Handling--Fact or Fiction,” 22nd Annual Conference of AIIE in Boston May 14 1971
- Switzer S. A. “Weight-Lifting Capabilities of a Selected Sample of Human Males,” Aerospace Medical Research Laboratories (Report AD-284054) Wright-Patterson AFB, OH 1962
- Taylor F. W. “The Principles of Scientific Management,” New York Harper and Brothers 1911
- Woodson W. E. Conover D. W. “Human Guide for Equipment Designers,” Second 2 246 Berkeley University of California Press 1964