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研究渐进性引导呼吸对呼吸性窦性心率不齐(RSA)的影响。对15名健康成年男性采集引导呼吸率依次为【14次/min—12.5次/min—11次/min—9.5次/min—8次/min—7次/min】状态下的同步心电、呼吸信号,采用提取RSA时、频特征参数的方法来研究渐变性呼吸率对RSA的影响。计算结果显示:表征RSA强度的三个特征参数总体上随着呼吸率的逐渐降低均呈现出增大的变化趋势。RSA代表着呼吸系统对心血管系统的反射调控,此实验结果表明,随着呼吸率的降低,呼吸系统对心血管系统的反射调控作用逐渐增加,提示可通过改变呼吸模式来改善心血管系统的功能。
To study the effect of progressive guided breathing on respiratory sinus arrhythmia (RSA). Fifteen healthy adult males were recruited to receive synchronized respiratory electrocardiogram (ECG) in the order of [14 times / min-12.5 times / min-11 times / min-9.5 times / min-8 times / min-7 times / Respiratory signals were extracted and RSA was used to study the effect of fresco respiration rate on RSA. The results show that the three characteristic parameters that characterize the RSA intensity generally show an increasing trend as the respiration rate gradually decreases. RSA represents the respiratory system on the cardiovascular system reflex regulation, the experimental results show that with the respiration rate decreased, the respiratory system on the cardiovascular system reflex regulation gradually increased, suggesting that by changing the breathing pattern to improve the cardiovascular system Features.