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농작업자의 근골격계질환 예방과 작업 효율성 향상을 위한 농작업 편이장비의 평가
이경숙(Kyung Suk Lee),김관우(Kwan Woo Kim),채혜선(Haesun Choi),김창한(Chang Han Kim),남서영(Soyoung Nam),이경미(Kyoung Mi Lee),최연우(Youn Woo Choi),박근상(Keun Sang Park) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.4
The packing and sorting processes of grape are required repetitive movements to need considerable physical load for a long time. And thereby, there is strong possibility to cause musculoskeletal disorders. In this study, ergonomically designed convenience equipments of worktable and handcart are introduced for improvement of the working movements and less physical load to increase the work efficiency. For objective analysis of the movements and the workload between the ones before and after the improvement, we measured heart rate, OWAS, RULA, REBA, LMM, moving Line and work time. Also, we used a checklist of physical fatigue regions to confirm the subjective evaluation of physical load of workers. As the result of study, it showed lower heart rate, value of Working Postures (OWAS, RULA, REBA) and LMM in the work after introduction of those convenient equipments than the work of before the introduction. The work time and moving Line were shortened and the number of grape boxes packed within the same work time was increased, too. Also the overall load as the subjective evaluation was reduced.