Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Safety and Health Management Plan of Subway Construction Workers using Macpa Stress Index

맥파 스트레스 지수를 활용한 도시철도 건설공사자의 안전보건관리 방안에 관한 연구

  • Joung Sik, Chae (Department of Safety Engineering, Pukyong National University) ;
  • Yu Jeong, Lee (The Protection Research Center, Pukyong National University) ;
  • Jong bin, Lee (The Protection Research Center, Pukyong National University) ;
  • Seong Rok, Chang (Department of Safety Engineering, Pukyong National University)
  • 채정식 (부경대학교 안전공학과) ;
  • 이유정 (부경대학교 방재연구소) ;
  • 이종빈 (부경대학교 방재연구소) ;
  • 장성록 (부경대학교 안전공학과)
  • Received : 2022.08.29
  • Accepted : 2022.12.07
  • Published : 2022.12.31
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Abstract

South Korea will soon be a super-aged society, as more than 20.6% of its population will be 65 years and older by 2025. As of 2022, 17.5% of the total population in South Korea is 65 years and older, which exceeds the set threshold for an aged society, where more than 14% of the population is 65 years and older. The proportion of older subway construction workers has increased. Aging workers and their work stress negatively impact their workability. A previous study demonstrated that the stress index measured using the uBioMacpa measurement device (Macpa stress index) had a significant correlation with work stress in South Korea. The device tests vascular health and measures stress levels via Macpa signal analysis. In this study, the pulse waves of subway construction workers were measured using uBioMacpa to identify their stress levels. The stress levels were analyzed by age, years of service, job position, employment type, and work type. Herein, these statistics could not be easily represented by a normal distribution; therefore, the Kruskal-Wallis test, a nonparametric statistical method, was used for the analysis of data. The results showed that age, job position, employment type, and working type affected the Macpa stress index and the stress levels of workers increased with age. In terms of job position, technical engineers were more stressed than other workers because of their poor working environment. In terms of employment type, daily-wage workers were more stressed than other workers. In terms of working type, tunneling, waterproofing, and construction scored the highest Macpa stress indexes without any significant difference, whereas earthworks scored the lowest. Based on the analysis of Macpa stress index, safety and health management plans were proposed to reduce the stress levels of workers. Moreover, a manual for efficient stress management must be developed for subway construction workers.

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