Model about Musculoskeletal Disorders and Efficiency according to Working Hand Tools of Laborers

Due to a massive outbreak in the workplace and a rapid increase of industrial disaster victims, musculoskeletal disorders is recently emerging as a major issue in the field of industry safety and health. Musculoskeletal disorders has already held a high rank of occupational diseases in advanced countries and it is rapidly growing every year in Korea. In particular, it is expected that people working in the construction industry have higher rates of musculoskeletal disorders given that the construction industry requires a higher level of dependence on human labor and laborers’ high intensity of physical labor outside. In this regard, targeting laborers involving in building construction, this study attempts to analyze the impact of musculoskeletal disorders which can be shown according to working hand tools, making to model musculoskeletal disorders on efficiency. As a result of analyses, it appears that there are differences in body parts that hurt skeleton and musculature between structural steel laborers and carpenters owing to different working hand tools they use. In case of structural steel laborers, they tend to feel most psychological distress when their necks and shoulders are under stress. In contrast, carpenter is likely to be agitated when their legs and knees are exposed to stress. Accordingly, this study is worthwhile by finding out different levels of musculoskeletal stress and different body parts depending on the tools laborers use, in turn proving that this has an impact on efficiency through modeling and quantifying it