chapter  25
14 Pages

The Role Personality in Ergonomics

It is not surprising that the underlying causes of musculoskeletal disorders (MSDs) are complex, multi-

factorial, and difficult to determine. Despite decades of research, the numbers of individuals developing

MSDs are still quite high. Yelin et al. (1999) reported that 90% of disabled older workers had MSDs.

Further, it was estimated that 18.4% of the U.S. population (nearly 60 million individuals) will suffer

from one or more chronic MSDs by the year 2020 (Lawrence et al., 1998). Treatment of these disorders

is in the tens of billions of dollars (Praemer et al., 1999). These injury statistics suggest that the current

methods for identifying and reducing or eliminating MSDs in today’s industries have not been

completely effective.