OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (2): 150-155.

• Treatise • Previous Articles     Next Articles

Analysis of working posture and risk level evaluation on musculoskeletal disorders among woodenfurniture operators

YU Qiaoli1, YANG Yajun1(), YE Mengliang2, SHI Xiongjie1, ZHAO Jinhua1, DUAN Yong1   

  1. 1. Chongqing Changshou District Center for Disease Control and Prevention,Chongqing 401220,China
    2. Chongqing Medical University,Chongqing 400016,China
  • Received:2025-04-20 Revised:2025-05-07 Online:2026-01-15 Published:2026-02-06

Abstract:

Objective To identify the poor working posture on musculoskeletal disorders of woodenfurniture operators,evaluate the risk grade of working posture,and to provide scientific basis for preventing work-rated musculoskeletal disorders in the working population. Methods In June 2024,a cluster sampling method was used to select 575 workers from 8 wood furniture manufacturers in High-tech Zone of Changshou District of Chongqing as the research objects,and Ovako working posture analysis system(OWAS) method was applied to conduct on-site investigation and analysis of the workers' poor work posture,work load,and posture occurrence. Results Among 575 workers,the improper postures mainly occurred in the legs and back. The main improper postures of the legs were standing,walking and standing with both feet bent,with the number(composition ratio) being 292(50.8%),178(31.0%),and 98(17.0%),respectively.The main improper postures of the back were forward bending and bending with twisting,with the number(composition ratio) being 375(65.2%) and 142(24.7%),respectively. The leg risk level of 561 furniture factory workers was ≥2,and the back risk level of 465 workers was ≥2. Totally 521 operation workers needed to adopt improvement measures for their improper postures,with the proportion of action levels reaching 90.6%. Among them,the working postures of 50(43.1%) grinding workers and 14(24.6%) packaging workers were at the severe hazard action level. Conclusion The vast majority of woodenfurniture operators from 8 wood furniture manufacturers in High-tech Zone of Changshou District of Chongqing present with improper working postures,especially in the legs and back. Some working postures are at the severe hazard action level,particularly for grinding workers,followed by packaging workers,and relevant improvement measures need to be taken immediately.

Key words: Ovako working posture analysis system, Work-related musculoskeletal-disorders, Wooden furniture operators, Ergonomies

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