Manual material handling assessment and repetitive tasks with two methods MAC and ART in a subsidiary of a manufacturer of cleaning products

Due to the limitations of each method of posture evaluation; the results from the comparison and evaluation of combined methods in order to complete and assess a comprehensive list of risk factors of activities is important. The purpose of this study was evaluated risk factors of manual handling, repetitive tasks and to determine the correlation between the results from two MAC and ART techniques. In this descriptive-analytical study, ۵۰ workers who were working in ۲۵ jobs were studied. In each task, after interviewing workers and observing their work cycles, a video was produced and the risk factors related to each activity were evaluated separately in accordance with both MAC and ART techniques. The correlations two techniques were examined by spss۱۶ using Pearson correlation test. In accordance with the ART and MAC, ۱۶% of the work stations are at high risk level ART and MAC techniques showed that in stations of manual handling and repetitive movements are carried out, ratings of the two techniques are different. Also, a significant positive correlation (R=۰.۷۲۵) in the evaluation of musculoskeletal disorders were observed with the aforementioned methods. The findings of this study confirm the agreement between the two techniques of risk assessments that can be lowered by designing, modification of workplace, planning and implementation of ergonomic on the job training and establishing the appropriate work-rest cycle, musculoskeletal disordersDue to the limitations of each method of posture evaluation; the results from the comparison and evaluation of combined methods in order to complete and assess a comprehensive list of risk factors of activities is important. The purpose of this study was evaluated risk factors of manual handling, repetitive tasks and to determine the correlation between the results from two MAC and ART techniques. In this descriptive-analytical study, ۵۰ workers who were working in ۲۵ jobs were studied. In each task, after interviewing workers and observing their work cycles, a video was produced and the risk factors related to each activity were evaluated separately in accordance with both MAC and ART techniques. The correlations two techniques were examined by spss۱۶ using Pearson correlation test. In accordance with the ART and MAC, ۱۶% of the work stations are at high risk level ART and MAC techniques showed that in stations of manual handling and repetitive movements are carried out, ratings of the two techniques are different. Also, a significant positive correlation (R=۰.۷۲۵) in the evaluation of musculoskeletal disorders were observed with the aforementioned methods. The findings of this study confirm the agreement between the two techniques of risk assessments that can be lowered by designing, modification of workplace, planning and implementation of ergonomic on the job training and establishing the appropriate work-rest cycle, musculoskeletal disorders

Keywords:

manual handling , manual handling assessment method (MAC) , repetitive motion estimation technique (ART)