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Science 10 July 1981:
Vol. 213. no. 4504, pp. 220 - 222
DOI: 10.1126/science.6166045

Articles

Science, Vol 213, Issue 4504, 220-222
Copyright © 1981 by American Association for the Advancement of Science


articles

Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control

S Akselrod, D Gordon, FA Ubel, DC Shannon, AC Berger, and RJ Cohen

Power spectrum analysis of heart rate fluctuations provides a quantitative noninvasive means of assessing the functioning of the short-term cardiovascular control systems. We show that sympathetic and parasympathetic nervous activity make frequency-specific contributions to the heart rate power spectrum, and that renin-angiotensin system activity strongly modulates the amplitude of the spectral peak located at 0.04 hertz. Our data therefore provide evidence that the renin-angiotensin system plays a significant role in short-term cardiovascular control in the time scale of seconds to minutes.


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Phase-averaged characterization of respiratory sinus arrhythmia pattern.
O. Gilad, C. A. Swenne, L. R. Davrath, and S. Akselrod (2005)
Am J Physiol Heart Circ Physiol 288, H504-H510
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Influences of breathing patterns on respiratory sinus arrhythmia in humans during exercise.
G. Blain, O. Meste, and S. Bermon (2005)
Am J Physiol Heart Circ Physiol 288, H887-H895
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Parasympathetic Airway Response and Heart Rate Variability Before and at the End of Methacholine Challenge.
A. Pichon, C. de Bisschop, V. Diaz, and A. Denjean (2005)
Chest 127, 23-29
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An Attempt to Evaluate Mental Workload Using Wavelet Transform of EEG.
A. Murata (2005)
Human Factors: The Journal of the Human Factors and Ergonomics Society 47, 498-508
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