Musculoskeletal disorder risk as a function of vehicle rotation angle during assembly tasks

作者：Ferguson Sue A^*; Marras Williams S; Allread W Gary; Knapik Gregory G; Vandlen Kimberly A; Splittstoesser Riley E; Yang Gang

来源：Applied Ergonomics, 2011, 42(5): 699-709.

DOI：10.1016/j.apergo.2010.11.004

• Musculoskeletal disorder risk
• Injury prevention
• Automotive

Musculoskeletal disorders (MSD) are costly and common problem in automotive manufacturing. The research goal was to quantify MSD exposure as a function of vehicle rotation angle and region during assembly tasks. The study was conducted at the Center for Occupational Health in Automotive Manufacturing (COHAM) Laboratory. Twelve subjects participated in the study. The vehicle was divided into seven regions, (3 interior, 2 underbody and 2 engine regions) representative of work areas during assembly. Three vehicle rotation angles were examined for each region. The standard horizontal assembly condition (0 rotation) was the reference frame. Exposure was assessed on the spine loads and posture, shoulder posture and muscle activity, neck posture and muscle activity as well as wrist posture. in all regions, rotating the vehicle reduced musculoskeletal exposure. In five of the seven regions 45 of vehicle rotation represented the position that reduced MSD exposure most. Two of the seven regions indicated 90 of vehicle rotation had the greatest impact for reducing MSD exposure. This study demonstrated that vehicle rotation shows promise for reducing exposure to risk factors for MDS during automobile assembly tasks.

• 出版日期2011-7