Identifying ergonomic factors and exposure risk of work-related musculoskeletal disorders in the automobile 4S shop
Objective To explore the high-risk sites and related ergonomic risk factors of work-related musculoskeletal disorders(WMSDs)among automobile 4S shop workers and to evaluate the risk degree of exposure to related ergonomic risk factors in different jobs,providing a scientific basis for preventing WMSDs in automobile 4S shop workers.Methods 174 after-sales maintenance workers from 17 auto 4S stores in Chongqing were selected as subjects by random sampling method.The American Ergonomics Basic Factor Checklist(BRIEF),Swedish Muscle Tension Factor Identification(PLIBEF),and rapid whole body assessment(REBA)were applied.On-site investigation,observation and video recording of employees'work posture,strength,duration,movement frequency,and 17 related ergonomic questions,were conducted to assess their risk level.Results The risk of wrist WMSDs was the highest in 4S shop workers(score＞2),followed by the back,hands,elbows,and legs(score＞1.5),the risks of WMSDs in left elbow,right wrist,back,and leg among different jobs was statistically significant(P＜0.05).The main adverse ergonomic factors were repetitive hand discomfort postures and load work,mild forward bending,lateral bending and twisting of the back,and repeated and persistent standing,squatting,or kneeling positions.The number of action levels requiring immediate improvement reached 81％.Conclusion The high-risk parts of WMSDs in each type of work are concentrated in the wrist,back,elbows,and legs.The risks of the lower back,foot,knee,and hip of the mechanics are significantly higher than those of other types of work.Most workers need to improve their bad working postures,and some are at a very high-risk action level.Relevant improvement measures should be taken immediately.
NETL
NSTL
万方数据
维普
