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Cited by 851

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Hemodynamic fluctuations and baroreflex sensitivity in humans: a beat-to-beat model

deBoer, R. W., Karemaker, J. M., Strackee, J.·1987·American Journal of Physiology-Heart and Circulatory Physiology

Abstract

A beat-to-beat model of the cardiovascular system is developed to study the spontaneous short-term variability in arterial blood pressure (BP) and heart rate (HR) data from humans at rest. The model consists of a set of difference equations representing the following mechanisms: 1) control of HR and peripheral resistance by the baroreflex, 2) Windkessel properties of the systemic arterial tree, 3) contractile properties of the myocardium (Starling's law and restitution), and 4) mechanical effects of respiration on BP. The model is tested by comparing power spectra and cross spectra of simulated data from the model with spectra of actual data from resting subjects. To make spectra from simulated data and from actual data tally, it must be assumed that respiratory sinus arrhythmia at rest is caused by the conversion of respiratory BP variability into HR variability by the fast, vagally mediated baroreflex. The so-called 10-s rhythm in HR and BP appears as a resonance phenomenon due to the delay in the sympathetic control loop of the baroreflex. The simulated response of the model to an imposed increase of BP is shown to correspond with the BP and HR response in patients after administration of a BP-increasing drug, such as phenylephrine. It is concluded that the model correctly describes a number of important features of the cardiovascular system. Mathematical properties of the difference-equation model are discussed.

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Crossref · 10.1152/ajpheart.1987.253.3.h680

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Metadata

Authors
deBoer, R. W., Karemaker, J. M., & Strackee, J.
Venue
American Journal of Physiology-Heart and Circulatory Physiology
Published
1987-09-01
Volume
253
Issue
3
Pages
H680-H689
ISSN
  • 0363-6135 (ISSN-L)
  • 1522-1539
OpenAlex
W1952072642
Cited by
851
References
19
FWCI
3.30
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Hemodynamic fluctuations and baroreflex sensitivity in humans: a beat-to-beat model. https://app.cochat.ai/papers/10.1152/ajpheart.1987.253.3.h680
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deBoer, R. W., Karemaker, J. M., & Strackee, J. (1987). Hemodynamic fluctuations and baroreflex sensitivity in humans: a beat-to-beat model. American Journal of Physiology-Heart and Circulatory Physiology. https://doi.org/10.1152/ajpheart.1987.253.3.h680

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.