Correlation between work fatigue and work-related musculoskeletal pain or injury in the occupational population in China
10.20001/j.issn.2095-2619.20230403
- VernacularTitle:中国职业人群作业疲劳与工作相关肌肉骨骼疼痛及损伤关联性分析
- Author:
Qing XU
1
;
Huadong ZHANG
;
Ruijie LING
;
Yimin LIU
;
Gang LI
;
Zaoliang REN
;
Yan YIN
;
Hua SHAO
;
Hengdong ZHANG
;
Bing QIU
;
Meibian ZHANG
;
Dayu WANG
;
Qiang ZENG
;
Rugang WANG
;
Jianchao CHEN
;
Danying ZHANG
;
Liangying MEI
;
Yongquan LIU
;
Jixiang LIU
;
Chengyun ZHANG
;
Tianlai LI
;
Ning JIA
;
Zhongxu WANG
Author Information
1. National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Publication Type:Journal Article
- Keywords:
Occupational population;
Work fatigue;
Pain;
Work-related musculoskeletal disorders;
Incidence;
Correlation
- From:
China Occupational Medicine
2023;50(2):133-139
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To analyze the current status of work-related musculoskeletal disorders (WMSDs), work fatigue and musculoskeletal pain in Chinese occupational population, and to study the relationship between work fatigue and musculoskeletal pain and WMSDs. Methods: A total of 66 961 employees from 323 enterprises in 15 key industries in China were selected as the study subjects using stratified cluster sampling method. The incidence of WMSDs in the past year was investigated using the Chinese version of the Musculoskeletal Disorders Questionnaire, and the work fatigue and musculoskeletal pain were investigated using Borg 6-20 Rating of Perceived Exertion Scale and visual analogue scale. The data were standardized using the age composition data of 18 to 60 years from the seventh national population census. Results: The standardized annual incidence of WMSDs was higher in the front-line workers than that in the administrative and other supportive staff (38.82% vs 36.30%). The detection rates of work fatigue and musculoskeletal pain in the study subjects were 44.54% and 63.08%, respectively. The result of S-curve fitting showed that the risk of WMSDs increased with the level of work fatigue (P<0.01). Among the front-line workers, the average of monthly fatigue frequency in the neck, shoulder, lower back, upper back, wrist/hand, foot and ankle, knee, leg, and elbow were higher in the group with WMSDs compared to those without WMSDs (all P<0.01). The pain degree of musculoskeletal pain was higher in all nine sites in the fatigued group than in the no-fatigue group (all P<0.01). The standardized detection rate of musculoskeletal pain was higher in the fatigued group than in the non-fatigued group (80.38% vs 25.71%). The work fatigue was moderate and positively correlated with musculoskeletal pain in all seven sites except the lower back and elbow, with Kendall Tau-b correlation coefficients ranging from 0.423 to 0.546 (all P<0.01). Conclusion: There is a good correlation between work fatigue and local musculoskeletal pain, work fatigue and WMSDs in Chinese occupational population. Implementing ergonomic interventions to control the development of work fatigue can be an effective measure for preventing WMSDs.
