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The wave structure of the strokevolume and rr-intervals oscilla-tions in the low wave range ofheart rhythm
S.O.Kovalenko, S.I.Tokar
Cherkasy National University named after BohdanHmelnytsky
Abstract
The spectral power of the RR-intervals and stroke volume (SV)
oscillations in the range of 0.04-0.15Hz was estimated among
252 men aged 17-28. The maximum peak frequencies of RR-
intervals spectrums and SV were significantly increased by
loadings. There is a tendency to higher frequency of RR-inter-
vals spectrum peaks in comparison with SV spectrum peaks.
There are two waves on the diagram RR-intervals spectrum
power at the state of rest and at tilt test testifying about two
mechanisms of their formation. All the waves are in the range
of 0.06-0.12Hz for RR-intervals and 0.05-0.11Hz for SV.
References
- Коваленко С.А., Кушниренко А.Е. Программнаясистема определения показателей кардиодинамики вразличных фазах дыхательного цикла // Кибернетикаи вычислит. техника. – 1999. – Вып. 124. – С. 92–98.
- Макаренко М.В. Методика проведення обстеженьта оцінки індивідуальних нейродинамічних власти-востей вищої нервової діяльності людини // Фізіол.журн. – 1999. – 45, № 4. – С. 125–131.
- Пиковский А., Розенблюм М., Куртс Ю. Синхро-низация. Фундаментальное нелинейное явление. –М.: Техносфера, 2003. – 496 с.
- Хаютин В.М., Лукошкова Е.В. Спектральный анализколебаний частоты сердцебиений: физиологическиеосновы и осложняющие его явления // Рос. физиол.журн. – 1999. – 85, №7. – С. 893–909.
- Cooley R.L., Montano N., Cogliati C. еt al. Evidence fora central origin of low-frequency oscillation in RR-inter-val variability//Circulation. – 1998. – 98. – Р. 556–561.
- Gevese A., Gulli G., Polati E., Gottin L., Grasso R.Baroreflex and oscillation of heart period at 0.1 Hz stud-ied by ?-blokade and cross-spectral analysis of healthyhumans//J. Physiol. – 2001. – 531, №1. – P. 235–244.
- Heart rate variability. Standards of Measurement, Physi-ological interpretation and clinical use //Circulation. –1996. – 93. – P. 1043–1065.
- Pokrovskii V.M. Alternative View on the Mechanismof Cardiac Rhythmogenesis// Heart, Lung Circulat. –2003. – 12, Issue 1. – P. 18–24.
- 9. Seibert J., Drabik P., Lango R., Szyndler K. Strokevolume variability and heart rate power spectrum inrelation to posture changes in healthy subjects//Med.Sci. Monit. – 2004. – 10, №2. – P. 31–37.
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© National Academy of Sciences of Ukraine, Bogomoletz Institute of Physiology, 2014-2024.
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