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농작업현장에 적용 가능한 안전보건 기술지침 항목 선정에 관한 연구
정원건 ( Wongeon Jung ),김경수 ( Kyungsu Kim ),서민태 ( Mintae Seo ),김효철 ( Hyocher Kim ) 한국산업보건학회 2021 한국산업보건학회지 Vol.31 No.4
Objectives: This study aimed to select items for technical guidelines through the guidelines of the Korean Occupational Safety and Health Agency (KOSHA) for agricultural workplaces. Methods: All 1,308 guidelines provided by KOSHA were reviewed and categorized using a Delphi technique questionnaire on their compatibility and urgency. Results: Among all the KOSHA guidelines, 100 items related to agricultural workplaces were selected. After that, two Delphi questionnaires were conducted and 46 items were finally selected. The average compatibility was calculated as 4.26, and urgency was 2.39. As a result of measuring the content validity of 46 items, six items were identified that were not relevant to agriculture. The final selected items were classified into four categories: Health examination and management, machinery standards, safety and health standard guides, and workplace environment management. Conclusions: The various risk factors at agricultural workplaces should be prevented and managed. It was shown that related technical guidelines or work standard manuals should be prepared. The technical guidelines of KOSHA will be provided as basic categories in the agricultural sector.
Development and Assessment of Shovel Applying Foothold
Cheolmin Lim,Kyungsuk Lee,Kyungran Kim,Hyocher Kim,Mintae Seo,Seongwoo Kim,Hyeseon Chae 대한인간공학회 2016 大韓人間工學會誌 Vol.35 No.2
Objective:The aim of this study is to develop a farming shovel to reduce workload, which helps farmers lower the risk of musculoskeletal disease. Background: Most of work using farming tools including shovels requires repetitive works and awkward postures on body parts, and it could possibly cause work-related musculoskeletal disorders. It is necessary to develop and distribute farm equipment and tools in order to reduce physical workload. Method: To improve the most uncomfortable task perceived by ten farmers during the work with a shovel, the improved shovel was designed and made as a prototype for experiment for the comparison of the existing and improved shovels. Twenty males were recruited for this experiment, and muscle activity (%MVC) of six body parts and subjective discomfort ratings by body parts while working with a shovel were measured. A paired t-test was performed to compare physical workload between the existing shovel and the developed one. Results: A shovel applying foothold tied between shaft and blade was designed, which can help workers reduce repetitive bending of back and pressures for upper limbs while digging soil. According to compared evaluation of the developed shovel and the existing shovel, the developed shovel"s %MVCs in all experimental muscles were significantly lower than those of the existing shovel. The developed shovel showed the biggest drop in perceived subjective discomfort rating of back, followed by arm and neck, compared to the existing shovel. Conclusion: It was confirmed that attaching a foothold to a shovel was an effective way of reducing workload in back and upper limbs during digging. Application: In the near future, if we put the prototype of developed shovel to practical use after making up for defects, it will help farm work environment be healthier and safer.
Development of Fruit Harvest Basket and Assessment of its Effectiveness
( Cheolmin Lim ),( Kyungsuk Lee ),( Kyungran Kim ),( Hyocher Kim ),( Sungwoo Kim ),( Mintae Seo ),( Hyeseon Chae ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-
The purpose of this study is to develop products that prevent muscular skeletal disease of farm workers, which would bring improvement for an efficient harvesting work. A pretest for product development and a survey research was carried out to inspect the problems of current harvesting work procedure. The product was developed and assessed based on ideas to supplement and improve these weak points. A total of twenty men were recruited to evaluate the effects of harvest baskets on the upper-limb muscle activities. For the usability evaluation, electromyogram of previous working method(disuse of harvest basket, one-hand carriage of the basket) and new working method with the usage of newly-developed harvest basket was examined. The whole anterior deltoid, biceps brachii and erector spinae on both sides, which makes a total of six muscle parts, were used for this experiment. The results were analyzed using ANOVA with muscle activity(%MVC) of each three forms of work and required work time from SPSS 18.0. According to the test result, all muscles did not demonstrate any statistically significant difference, with an exception of the backbone erector(right). The muscle activity of backbone erector(right) in the work method that uses harvest basket was detected to be approximately 23% less than that of the previous working method. As such, the decrease in the amount of waist muscle usage at harvesting work would enable the prevention of muscular skeletal disease and stabilization of lumbar spine.
Development of Fruit Harvest Basket and Assessment of its Effectiveness
Cheolmin Lim,Kyungsuk Lee,Kyungran Kim,Hyocher Kim,Sungwoo Kim,Mintae Seo,Hyeseon Chae 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5
The purpose of this study is to develop products that prevent muscular skeletal disease of farm workers, which would bring improvement for an efficient harvesting work. A pretest for product development and a survey research was carried out to inspect the problems of current harvesting work procedure. The product was developed and assessed based on ideas to supplement and improve these weak points. A total of twenty men were recruited to evaluate the effects of harvest baskets on the upper-limb muscle activities. For the usability evaluation, electromyogram of previous working method(disuse of harvest basket , one-hand carriage of the basket) and new working method with the usage of newly-developed harvest basket was examined. The whole anterior deltoid, biceps brachii and erector spinae on both sides, which makes a total of six muscle parts, were used for this experiment. The results were analyzed using ANOVA with muscle activity(%MVC) of each three forms of work and required work time from SPSS 18.0. According to the test result, all muscles did not demonstrate any statistically significant difference, with an exception of the backbone erector(right). The muscle activity of backbone erector(right) in the work method that uses harvest basket was detected to be approximately 23% less than that of the previous working method. As such, the decrease in the amount of waist muscle usage at harvesting work would enable the prevention of muscular skeletal disease and stabilization of lumbar spine. Which in turn would increase the effectiveness and reduce personnel expense(labor costs) while enhancing productivity with a decreased working hours.