ABSTRACT
With the advent of the industrial revolution, the emphasis shi–ed toward mass production. Occupational injuries and diseases were either neglected as an inevitable side e™ect of a mass production system or were attributed to several other factors not related to the workplace. In the 1700s, Ramazzini suggested that the cause of such occupational diseases was the use of excessive force and unnatural postures [4]. It was not until recently that the principles of biomechanics were applied to a systematic study of human performance in the work environment.
