ABSTRACT
Disorders of the musculoskeletal system are common worldwide. They play an important role in occupational health and are one of the most frequent disorders. In a world characterized by the globalization of national economies, it is desirable to specify recommended limits for manual materials handling activities on an internationally accepted basis. This helps to improve and maintain healthy and safe working conditions which enhances quality and productivity and reduces sick leave and personal suffering from work-related muscular disorders. Harmonized international regulations also help to reduce advantages in economic competition based on poor and hazardous ergonomic design.
