Safe Lifting Research Articles

The design of manual handling tasks.

Abstract Manual materials handling is the principal source of compensatable work injuries in the United States, and 79% of the manual handling injuries affect the lower back. The prevention of low back injuries in industry has traditionally been attemped by (1) careful selection of workers, (2) good training procedures in safe lifting, and (3) designing the job to fit the worker. This paper discusses the latter approach by describing seven studies of lifting, lowering, pushing, pulling, carrying and walking. Among the variables investigated were the height, distance and frequency of the task; the size and weight of the object; the differences in worker sex. age, and physical physique; and the effects of heat stress. The psychophysical methodology used in six of the studies is discussed, and the results are used to develop a series of tables for evaluating the design ofmanual handling tasks. The tables present the maximum weights that are acceptable to 10, 25, 50, 75 and 90% of the working population. The ...

A study of three preventive approaches to low back injury.

The prevention of low back injuries in industry has traditionally been attempted by (1) careful selection of workers, (2) good training in safe lifting, and (3) designing the job to fit the worker (ergonomics). One hundred ninety-one low back injuries were analyzed to determine the effectiveness of each preventive approach. The results indicate that the common selection techniques, as they are being used today, are not an effective control for low back injuries. Similarly, training on safe lifting procedures, as it is being administered today, is not an effective control for low back injuries. It was determined that a worker is three times more susceptible to low back injury if exposed to excessive manual handling tasks. The ergonomic redesign of these tasks to reduce the manual handling exposure represents a partial control for low back injuries.

SAFE LIFTING OF HEAVY OBJECTS FROM MOTOR‐CARS

Medical Journal of AustraliaVolume 2, Issue 12 p. 685-685 Correspondence SAFE LIFTING OF HEAVY OBJECTS FROM MOTOR-CARS First published: 01 September 1972 https://doi.org/10.5694/j.1326-5377.1972.tb103481.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume2, Issue12September 1972Pages 685-685 RelatedInformation

The ideal magnet—fully controllable permanent magnets for power and transport

Electromagnets wound on the pole-plates of suitable high-coercivity magnets give complete flux control without loss of permanence. This principle has wide uses in power controls and both road and rail transport, as recently proved by the author with work on safe lifting magnets for ton loads.