INDICATORS OF HEART RATE VARIABILITY IN HEALTHY VOLUNTEERS DEPENDING ON THE RESPIRATION RATE AND INHALATION-EXHALATION RATIO
Abstract
At the 4 healthy volunteers aged 22 to 29 years (2 men and 2 women) with a body mass index from 21 to 23 individual characteristics and general laws of the reactions of the spectral indices of HRV in the low and high frequencies of breathing with different ratios of breaths were examined. It is shown that the spectrum of HRV LF maximum is reached at a frequency of 6 breaths per minute. A maximum of HF range of HRV recorded during breathing with a frequency of 10-12 per minute. Demonstrated that in addition to the frequency of paced breathing the inhalation-exhalation ratio significantly affects the power and structure of the spectrum of HRV. Maximum values of the TR spectrum of HRV and LF HRV spectrum lie in the range of 1/1, 2-1/1,3, and the maximum HP of the spectrum of HRV – in the range of 1/1,3-1/1,4. Using the best balance of inhalation-exhalation allow more subtly to influence the regulatory process.
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References
2. Lehrer P. M. Resonant frequency biofeedback training to increase cardiac variability: rationale and manual for training. / P. M. Lehrer, E. Vaschillo, B. Vaschillo // Appl Psychophysiol Biofeedback. – 2000. – № 25. – P. 177–191.
3. Shields R.W. Jr. Heart rate variability with deep breathing as a clinical test of cardiovagal function. / R.W. Jr. Shields // Cleve Clin J Med. – 2009.– № 76. – Suppl 2. – P. 37–40.
4. Van de Louw A. Breathing cardiovascular variability and baroreflex in mechanically ventilated patients. / A. Van de Louw, C. Médigue, Y. Papelier [et al.] // Am J Physiol Regul Integr Comp Physiol. – 2008. – № 295(6). – P. 1934–1940.
5. Buchner T. On the nature of heart rate variability in a breathing normal subject: a stochastic process analysis. / T. Buchner, M. Petelczyc, J. J. Zebrowski [et al.] // Chaos. – 2009. – № 19(2). – P. 428–504.
6. Fang Y. Effect of different breathing patterns on nonlinearity of heart rate variability. / Y. Fang, J. T. Sun, C. Li [et al.] //Conf Proc IEEE Eng Med Biol Soc. – 2008. – P. 3220–3223.
7. Kobayashi H. Does paced breathing improve the reproducibility of heart rate variability measurements? / H. Kobayashi // J Physiol Anthropol. – 2009. – № 28(5). – P. 225–230.
8. Koskinen T. Short-term heart rate variability in healthy young adults: the Cardiovascular Risk in Young Finns Study. / T. Koskinen, M. Kähönen, A. Jula [et al.] // Auton Neurosci. – 2009. – № 28, 145(1-2). – P. 81–88.
9. Lung function assessment and application in medicine / John E. Cotes. – [5 ed.] – Wiley-Blackwell, 1993. – 768 p.
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