Study of the efficient and effective requirements in chest compression

根据心肺复苏(CPR)指南，胸部按压的旋转时间应为2分钟左右。胸部按压的质量与救援者的身体健康有关，但在确定旋转时间时没有考虑这一点。本研究旨在阐明体重与心肺复苏术中胸部按压和身体疲劳的质量之间的关系。在轻型组中，适当按压的比率随着时间的推移而显著下降。轻度组的心率、摄氧量、肌肉活动(定义为综合肌电信号)和感觉到的劳累程度的值显著高于对照组。胸部按压导致轻型组的疲劳感增加，从而导致胸部按压质量逐渐下降。这些结果表明，体重较轻的个体应该每隔1分钟旋转一次，以保持高质量的CPR

According to the guidelines for cardiopulmonary resuscitation (CPR), the rotation time for chest compression should be about 2 min. The quality of chest compressions is related to the physical fitness of the rescuer, but this was not considered when determining rotation time. The present study aimed to clarify associations between body weight and the quality of chest compression and physical fatigue during CPR. The ratio of adequate compressions decreased significantly over time in the light group. Values for heart rate, oxygen uptake, muscle activity defined as integrated electromyography signals and rating of perceived exertion were significantly higher for the light group than for the control group. Chest compression caused increased fatigue among the light group, which consequently resulted in a gradual fall in the quality of chest compression. These results suggested that individuals with a lower body weight should rotate at 1-min intervals to maintain high quality CPR