가슴압박소생술 숙련도에 따른 구조자의 목근육 근긴장도와 근경직의 비교분석
Comparison analysis of rescuer's neck muscle tone and stiffness according to cardiopulmonary resuscitation skill-level
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이 연구의 목적은 가슴압박소생술(cardiopulmonary resuscitation, CPR)의 숙련도에 따른 목근육에근긴장도와 근경직 차이를 확인하기 위해 실시되었다. 연구대상자는 20대 여학생 30명으로 숙련자군과 비숙련자군 각각 15명이었다. 연구결과, 숙련자군은 가슴압박 수행 후 손잡기(hand grip)의위손쪽 아랫목근육의 근경직과 위등세모근의 근긴장도가 유의하게 감소되었다(p<.05). 비숙련자군은 가슴압박 후 양쪽 위등세모근의 근긴장도와 근경직이 모두 유의하게 감소되었지만(p<.05) 연구군 간에 유의한 차이는 없었다. 그리고, 비숙련자군은 숙련자군과 비교하여 가슴압박 수행 후 평균압박속도, 총압박횟수, 가슴압박 정확도, 가슴이완 정확도가 유의하게 낮았다(p<.05). 이 연구를통해 가슴압박은 수행자의 목근육에 근생리학적 영향을 미치지만, CPR 숙련도에 따른 차이는 없으며, 숙련도는 CPR 정확성에 중요한 요소인 것을 확인하였다.
Abstract
The purpose of this study was to identify differences in the muscle tone and stiffness of neck muscles according to levels of cardiopulmonary resuscitation (CPR) skill. The subjects were 30 female students in their 20s who were divided into a skilled group (n=15) and an unskilled group (n=15). According to the results, the skilled group showed statistically significant decreases in the stiffness of the lower cervical muscle and the muscle tone of the upper trapezius on the above hand side of hand grips after CPR (p<.05). The unskilled group exhibited a statistically significant difference in both the muscle tone and stiffness of the upper trapezius muscle on both sides after CPR (p<.05). However, no statistically significant differences were found between the two groups. In addition, the non-skilled group showed statistically significant lower values than the skilled group in the mean compression rate, total number of compressions, accuracy of chest compression, and accuracy of chest relaxation (p<.05). This study confirmed that CPR has a myophysiological effect on the neck muscles of those who perform CPR. However, it found that no differences result from individual CPR skill levels that are an important element for the accuracy of CPR.
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