การประเมินความเสี่ยงต่อความผิดปกติทางระบบกระดูกโครงร่างและกล้ามเนื้อในพนักงานอุตสาหกรรมรีดขึ้นรูปหลังคาเหล็กเพื่อโปรแกรมการจัดการทางการยศาสตร์

Abstract

This cross-sectional analytical study aimed to assess health risk on work related musculoskeletal disorders (MSDs) of workers in steel roll roof forming industry for ergonomics management program. Data were collected from 97 employees by using an interviewed questionnaire for musculoskeletal discomfort information. Ergonomics factors were assessed by Rapid Entire Body Assessment (REBA) and Rapid Upper Limb Assessment (RULA). Health risk assessment on MSDs was done by using the health risk matrix of combination of the severity levels of MSDs discomfort and the likelihood of exposure to ergonomics factor. The results showed that most workers were male (97.9%), average age was 34.61 years, job position was majority as operator (73.2%). The results of MSDs risk indicated at the very high risk (level 4: implemented need immediately, 37.11%), followed by the moderated risk (level 2: suggestion for surveillance, 35.04%) and high risk (level 3: implementation need, 17.52%). The departments of folder machine control, crimp curve machine and roll forming machine control showed the high ergonomic risk by REBA identification (level 4) that indicated such problems for implementation immediately. The results of implementation by improvement of working posture with ergonomics training, work system and workstation area in the production lines to be suitable for each worker with the task manual and providing an appropriate rest time period indicated a decreased risk levels significantly after implementation. Therefore, this ergonomics management program suggested from MSDs risk matrix tool of risk identification and the ergonomics management program of implementation is a good guideline for the surveillance of MSDs among industrial workers in other kinds of production.