The WRMSDs have been associated with multifactorial etiology and its prevention and management require multidisciplinary effort. Though the advancement in ergonomics and biomechanics have led to modification of workplace environment and reduction of external force, yet the incidence of MSDs continued to mount, particularly in jobs requiring repetitive movements, giving an impression that the modification of external force alone cannot explain the increasing incidence of MSDs. Through this present research, the author is intended to find out the optimum force that could be exerted with minimal discomfort during combined movements of extension with ulnar deviation of wrist.

Amandeep Singh a obtenu son diplôme de troisième cycle au département d'ingénierie mécanique de l'université Punjabi de Patiala, en Inde. Roshan Lal Virdi et Khushdeep Goyal travaillent comme professeurs assistants au département de génie mécanique de l'université Punjabi de Patiala.