THE PATTERN OF SAFETY AND HEALTH WORK TO PREVENT MUSCULOSKELETAL DISORDERS AT WELDING WORKER IN MAHKAMAH STREET MEDAN

Abstract

The welding worker has a potential risk in their work whereas the posture in welding process was not
ergonomic. The fatique or musculoskeletal disorders happened at the welding worker shown by their
vertebra disorders and some complaint like feel pain in their bone and muscle. The posture like bending
over to the floor or squate position in a long duration would giving the fatique complaint at the last process.
The purpose of this research was to implement the pattern of safety and health work as the prevention
action for decrease the musculoskeletal disorders. This is an observasional survey by using the handycam to
documented the posture and use the Participatory Action Research approach. Nordic body map
questionnaire used to present the mapping of musculoskeletal disorders that happened at the welding
worker. The results showed the pattern of safety and health work could be implement at the welding worker
such as change the posture with welding in standing posture by using the work bench and do the ergonomic
relaxation in 2-3 minutes if the worker feel pain in the part of their body, then do the full ergonomic
exercises after the work. The result show that the workers feel pain at their knee, waist, hand, back and
shoulder after their work. When they implement the ergonomic relaxation or exercises the musculoskeletal
disorders are decrease in 67 % than before and feel productive to continue their work. In conclusion, the
ergonomic exercise and relaxation could decrease the musculoskeletal disorders at the welding worker in
Mahkamah street Medan. Recommended to the host of welding informal industry to arranged their work
time for implement the ergonomic exercise in daily to decrease the musculoskeletal disorders at welding
process.