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Spectral Analysis of Circulatory Rhythms and Baroreflex Sensitivity in Man

  • N. Honzíková
  • B. Fišer
Conference paper
Part of the Springer Series in Synergetics book series (SSSYN, volume 55)

Abstract

The spectral analysis technique was applied for noninvasive assessment of heartrate baroreflex sensitivity. The modulus (or gain) of the transfer function between variations in blood pressure and heart rate was calculated. During voluntarily controlled breathing intervals (3,4,5, 6,8,10 and 17 s), the amplitude of 0.1 Hz and respiratory peaks in spectra of heart rate and blood pressure changed markedly. Nevertheless, the average sensitivity of the baroreflex (modulus) changed insignificantly. The difference between the modulus at 0.1 Hz and at breathing rate indicates that baroreflex is only one of the factors causing respiratory arrhythmia.

Keywords

Respiratory Frequency Blood Pressure Variability Baroreflex Sensitivity Breathing Rate Breathing Frequency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • N. Honzíková
    • 1
  • B. Fišer
    • 1
  1. 1.Department of PhysiologyMasaryk University, Faculty of MedicineBrnoCzechoslovakia

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