Objective To evaluate the correlation between musculoskeletal disorders (MSDs) and ergonomic load among automobile assembly workers.
Methods By using combined cross-sectional and retrospective investigation,work-related MSDs Quick Exposure Check (QEC) and the Nordic Musculoskeletal Questionnaire were utilized to assess ergonomic load-related MSDs among automobile assembly workers.The correlation between ergonomic load and MSDs was analyzed by multiple factor logistic regression analysis.
Results There were 1 465 valid questionnaires retuned.The monthly prevalence of MSDs in neck,shoulder,wrist,and lower back/waist were 6.28%(92),4.98%(73),6.48%(95),and 9.69%(142),respectively,and the QEC scores of the four body parts of the positive MSDs group were significantly higher than those of the negative MSDs group (P < 0.05).A doseeffect relationship was found between the prevalence of MSDs and ergonomic load (OR > 1),and increased with higher ergonomics load level (Ptrend < 0.01).The results of logistic regression analysis found that height and smoking were the influencing factors of MSDs in neck or shoulder.
Conclusion There is a correlation between ergonomic load and MSDs.Height and smoking are risk factors for MSDs in neck or shoulder.
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