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Analysis of trunk angle and muscle activation during chest compression in 119 EMTs

가슴압박시 구급대원의 체간 각도와 근활성도 분석

  • Shin, Dong-Min (Dept. of Paramedic Science, Korea National University of Transportation) ;
  • Lee, Chang-Sub (Se-Jong Metropolitan Autonomous City Fire Headquarter) ;
  • Kim, Seung-Yong (Dept. of Management Information System, Korea National University of Transportation) ;
  • Kim, Chang-Kook (Dept. of Global Sport Studies, Korea University) ;
  • Hong, Eun-Jeong (Dept. of Industry-Academic Cooperation Foundation, Korea National University of Transportation) ;
  • Lee, Young-Chul (Dept. of Sport and Leisure Studies, Graduate School, Korea University) ;
  • Choi, Ga-Ram (Dept. of Sport and Leisure Studies, Graduate School, Korea University) ;
  • Kim, Gyoung-Yong (Dept. of Emergency Medical Rehabilitation Graduate School, Gangwon National University) ;
  • Jang, Mun-Sun (Dept. of Emergency medical technology, Sunlin College) ;
  • Kim, Jeong-Hee (Dept. of Industry-Academic Cooperation Foundation, Korea National University of Transportation) ;
  • Han, Boong-Ki (Dept. of Emergency Medical Technology, ChungBuk Health & Science University) ;
  • Lee, Jong-Kun (Dept. of Sports, YoungDong University) ;
  • Tak, Yang-Ju (Dept. of Paramedic Science, Korea National University of Transportation)
  • 신동민 (국립한국교통대학교 응급구조학과) ;
  • 이창섭 (세종특별자치시 소방본부) ;
  • 김승용 (국립한국교통대학교 경영정보학과) ;
  • 김창국 (고려대학교 국제스포츠학부) ;
  • 홍은정 (국립한국교통대학교 산학협력단) ;
  • 이영철 (고려대학교 일반대학원 사회체육학과) ;
  • 최가람 (고려대학교 일반대학원 사회체육학과) ;
  • 김경용 (강원대학교 일반대학원 응급의료재활학과) ;
  • 장문순 (선린대학교 응급구조과) ;
  • 김정희 (국립한국교통대학교 산학협력단) ;
  • 한붕기 (충북보건과학대학교 응급구조과) ;
  • 이종근 (영동대학교 스포츠학부) ;
  • 탁양주 (국립한국교통대학교 응급구조학과)
  • Received : 2014.10.25
  • Accepted : 2014.12.24
  • Published : 2014.12.31

Abstract

Purpose: We aimed to investigate trunk angle and muscle activation of the extremity and back to evaluate the effect of chest compression on work-related musculoskeletal disorders in 119 emergency medical technicians (EMTs). Methods: Eighteen 119 EMTs performed 2-minute chest compression without interruption on a cardiopulmonary resuscitation manikin, during which we measured changes in the trunk and shoulder joint angles, muscle activation (triceps brachii, biceps brachii, erector spinae, gluteus maximus, pectoralis major, rectus abdominis, and rectus femoris) and chest compression accuracy. Results: The decrease in trunk angle by trunk muscle activation was the highest in event 2, the major direction of chest compression. Both shoulder joint angles had no significant difference. Muscle activation of the triceps brachii (p < .01), biceps brachii (p < .05), rectus abdominis (p < .05) and rectus femoris (p < .01) significantly increased during the compression phase compared with the decompression phase, with the rectus femoris showing an increase of 19%. Muscle activation of the erector spinae significantly increased in the decompression phase compared with the compression phase (p < .01). Conclusion: 119 EMTs mainly use the triceps brachii, biceps brachii and pectoralis major muscles during chest compression.

Keywords

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