Effects of 60 Minutes Cardiopulmonary Resuscitation on Blood Lactic Acid Concentration, Heart Rate, and Rating of Perceived Exertion in Rescuers

• Published in: 韓國컴퓨터情報學會論文誌 Vol. 27; no. 8; pp. 195 - 202
• Main Authors: Han, Seung-Eun, Ahn, Hee-Jeong, Shim, Gyu-Sik, Bang, Sung-Hwan, Song, Hyo-Suk
• Format: Journal Article
• Language: Korean
• Published: 2022
• Subjects: 60
• ISSN: 1598-849X; 2383-9945

In this study, when cardiopulmonary resuscitation continued for a long time, the rescuer's blood lactic acid concentration, heart rate, and rating of perceived exertion were measured to identify the change in the rescuer's fatigue. Data collection was conducted from July 5 to July 9, 2021, with a total of 24 students, 12 students department of special warfare medical non-commissioned officer, and 12 students department of emergency medical technology at D University, undergoing a two-person alternative chest compression resuscitation for 60 minutes. As a result of the study, the rescuer's blood lactic acid concentration, heart rate, rating of perceived exertion, and chest compression speed were significantly changed according to the duration of CPR (p<.001, p<.001, p<.001, p<.001). blood lactic acid concentrations at every measurement cycle (30 minutes, 40 minutes, 50 minutes, 60 minutes) showed a significant positive correlation with heart rate (r=.696, p<.001, r=.672, p<.001, r=.709, p<.001, r=.782, p<.001), there was also a significant positive correlation with the rating of perceived exertion (r=.476, p<).05, r=.426, p<.05, r=.470, p<.05, r=.470, p<.05). Therefore, monitoring the fatigue of rescuers using heart rate and rating of perceived exertion will be useful for maintaining high-quality chest compression in situations where cardiopulmonary resuscitation is required for a long time. 본 연구에서는 장시간 심폐소생술 지속 시 구조자의 혈중 젖산 농도, 심박동수, 운동자각도를 측정함으로써 구조자의 피로도 변화를 파악하고자 하였다. 자료수집은 2021년도 7월 5일부터 7월 9일까지 D 대학교 특전의무부사관과 학생 12명, 응급구조학과 학생 12명 총 24명을 대상으로 60분 동안 2인 교대 가슴 압박 소생술을 수행하였다. 연구 결과 심폐소생술 지속시간에 따른 구조자의 혈중 젖산 농도, 심박동수, 주관적 피로도인 운동 자각도, 가슴 압박 속도는 유의미한 변화가 있었다(p<.001, p<.001, p<.001, p<.001). 매 측정 주기(30분, 40분, 50분, 60분) 시 혈중 젖산 농도는 심박동수와 유의한 정적 상관관계가 나타났으며(r=.696, p<.001, r=.672, p<.001, r=.709, p<.001, r=.782, p<.001), 운동자각도와도 유의한 정적 상관관계가 나타났다(r=.476, p<.05, r=.426, p<.05, r=.470, p<.05, r=.470, p<.05). 따라서 장시간 심폐소생술이 요구되는 상황에서 심박동수와 운동자각도를 활용한 구조자의 피로도 모니터링은 고품질의 가슴 압박을 유지하는데 유용할 것이다.