Limitations in the application of materials handling guidelines

Abstract

Models of human characteristics and capacities with respect to materials handling are found commonly in the ergonomics literature. They are used widely by practitioners, health and safety personnel and, increasingly, in assessing the validity of personal injury claims. The derivation of such guidelines is frequently based on assessment of only a limited number of factors in the manual handling system. Few are underpinned by epidemiological studies of back or other related disorders, yet most of their applications would be in situations where adherence to the guidelines would lead to an expectation of reduced incidence of such disorders. Case studies are presented showing other limitations of the available guidelines. Alternative approaches are outlined, and emphasis is placed on the need for regulatory bodies to take a greater account of these current limitations.