渐进性引导呼吸对血氧饱和度的影响  

Variation of SpO_2 during a Step-wise Paced Breathing Procedure

作　　者：韩宁[1] 王民[2] 王剑[1] 张政波[1] 王步青[1] 柴晓珂 

机构地区：[1]解放军总医院医学工程与维修中心,北京市100853 [2]中国医科大学生物医学工程系,北京市110000 [3]北京航空航天大学生物与医学工程学院,北京市100091

出　　处：《中国医疗器械杂志》2017年第1期1-4,共4页Chinese Journal of Medical Instrumentation

基　　金：国家自然科学基金面上项目资助(61471398);国家科技支撑计划课题资助项目(2013BAI03B05)

摘　　要：节律性的深—慢呼吸运动能对心血管系统产生有益的调节作用,该文研究了渐进性引导呼吸运动对血氧饱和度(SpO_2)的影响。实验对象分为低氧常压组(模拟高原4 500 m低氧环境,8人)和常氧常压组(实验室环境,49人)。分别进行呼吸频率由高到低渐进性变化的引导呼吸运动,记录每一个受试者的SpO_2和心率。实验结果表明,在低氧情况下,渐进性引导呼吸能够显著提高受试者的SpO_2水平(从90%提高到95%,P<0.01),即使在常氧常压SpO_2变化不大(SpO_2>95%)的情况下,引导呼吸也能提高SpO_2水平(P<0.01)。两个实验组的平均心率在渐进性引导呼吸过程中都呈下降趋势。研究表明,渐进性引导呼吸技术可以作为调节SpO_2的一个手段,在低氧环境下通过调节自身呼吸运动能够有效提高SpO_2水平。Rhythmic respiratory movement in a deep and slow pattern can be beneficial to cardiovascular system, this paper investigates the effect of step-wise paced breathing procedure on blood oxygen saturation （SpO2）. Experiment objects were divided into two groups, the normobaric hypoxia （simulated altitude of 4 500 meters hypoxia environment, 8 persons）, normoxia and normobaric group （laboratory environment, 49 persons）. The respiratory movements were performed by a high-to-low progressive change in two groups respectively. During the experiment, each object＇s blood oxygen saturation and heart rate were recorded. Results showed that progressive guided breathing could significantly increase the subjects＇ blood oxygen saturation level from 90% to 95% under the hypoxic condition. Even under the normobaric and normoxic condition, progressive guided breathing with stable blood oxygen saturation level can also enhance the blood oxygen saturation level. In both groups, mean heart rate declined in the progressive guided breathing. The research showed that the step-wise paced breathing technique could regulate the blood oxygen saturation and effectively improve the level of blood oxygen saturation by adjusting the respiratory motion in the low oxygen environment.

关 键 词：血氧饱和度 渐进性引导呼吸 低氧 心率 

分 类 号：R318[医药卫生—生物医学工程]