POWER SPECTRAL-ANALYSIS OF HEART-RATE-VARIABILITY AFTER BIOFEEDBACK TRAINING
POWER SPECTRAL-ANALYSIS OF HEART-RATE-VARIABILITY AFTER BIOFEEDBACK TRAINING
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DOI：
10.1016/0022-0736(90)90081-c
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发表时间：
1991-01-01
影响因子：
1.3
通讯作者：
BUCHANAN, L
中科院分区：
文献类型：
--
作者：
COWAN, MJ;KOGAN, H;BUCHANAN, L
本研究探讨了生物反馈/自我管理训练对6名心脏骤停幸存者心率变异性（HRV）的影响。 训练的生理理论基础是认知诱发呼吸性窦性心律失常。 功率谱分析和非频谱分析（Kleiger，Magid，SCANN，BB 50措施）的HRV测量之前和之后5周的生物反馈训练。 与训练前平均HRV相比，训练后平均HRV的Kleiger测量值增加（159 +/- 37 ms vs 147 +/- 38 ms）。 训练后，功率密度谱的高频成分（0.27-0.30 Hz）显著增加，表明运动驱动的副交感神经活动增加。 训练后，低频成分（0.05 Hz）略有减少，表明交感神经活动减少。 在夜间9小时内，高频分量的增加比白天更显著。 这些数据表明，心脏骤停的受试者可以通过生物反馈/自我管理在5周内认知地增加他们的HRV，从而增加副交感神经活动。
This study investigated the effects of biofeedback/self-management training on heart rate variability (HRV) in six sudden cardiac arrest survivors. The physiological-theoretical basis of the training was cognitively inducing respiratory sinus arrhythymia. Power spectral analyses and nonspectral analyses (Kleiger, Magid, SCANN, BB50 measures) of HRV measured before and after 5 weeks of biofeedback training are described. The posttraining Kleiger measure of mean HRV increased compared to the pretraining mean HRV (159 +/- 37 ms vs 147 +/- 38 ms). After training, the high frequency components (0.27-0.30 Hz) of the power density spectra were markedly increased, suggesting an increase of respiratory-driven parasympathetic activity. After training, the low frequency components (0.05 Hz) were slightly decreased, suggesting a decrease in sympathetic activity. The increases noted in the high frequency components were more striking during 9 hours at night than during the day. These data indicate that subjects who have had sudden cardiac arrest can, through biofeedback/self-management, cognitively increase their HRV over a 5-week period, consequently increasing parasympathetic activity.