Multistructure index in revealing complexity of regulatory mechanisms of human cardiovascular system at rest and orthostatic stress in healthy humans

2017 ◽  
Vol 468 ◽  
pp. 809-824 ◽  
Author(s):  
Danuta Makowiec ◽  
Beata Graff ◽  
Zbigniew R. Struzik
Keyword(s):  
Cardiovascular System ◽  
Regulatory Mechanisms ◽  
Orthostatic Stress ◽  
Healthy Humans ◽  
Human Cardiovascular System

scholarly journals MATHEMATICAL MODEL OF THE REGULATORY MECHANISMS OF HUMAN CARDIOVASCULAR SYSTEM

2016 ◽  
Vol 42 (10) ◽  
pp. 4-8 ◽  
Author(s):  
Moxiniso Baxromovna Hidirova ◽  
◽  
Zaynabhon Djumanazarovna Yusupova ◽  
Keyword(s):  
Mathematical Model ◽  
Cardiovascular System ◽  
Regulatory Mechanisms ◽  
Human Cardiovascular System

Bifurcation in a Simple Model of the Cardiovascular System

2000 ◽  
Vol 39 (02) ◽  
pp. 118-121 ◽  
Author(s):  
S. Akselrod ◽  
S. Eyal
Keyword(s):  
Nonlinear Dynamics ◽  
Blood Pressure ◽  
Heart Rate ◽  
Fixed Point ◽  
Cardiovascular System ◽  
Modified Model ◽  
Mayer Waves ◽  
Sustained Oscillations ◽  
Human Cardiovascular System ◽  
Physiological Values

Abstract:A simple nonlinear beat-to-beat model of the human cardiovascular system has been studied. The model, introduced by DeBoer et al. was a simplified linearized version. We present a modified model which allows to investigate the nonlinear dynamics of the cardiovascular system. We found that an increase in the -sympathetic gain, via a Hopf bifurcation, leads to sustained oscillations both in heart rate and blood pressure variables at about 0.1 Hz (Mayer waves). Similar oscillations were observed when increasing the -sympathetic gain or decreasing the vagal gain. Further changes of the gains, even beyond reasonable physiological values, did not reveal another bifurcation. The dynamics observed were thus either fixed point or limit cycle. Introducing respiration into the model showed entrainment between the respiration frequency and the Mayer waves.

scholarly journals A Novel Patient-Specific Human Cardiovascular System Phantom (HCSP) for Reconstructions of Pulsatile Blood Hemodynamic Inside Abdominal Aortic Aneurysm

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 61896-61903 ◽  
Author(s):  
Andrzej Polanczyk ◽  
Michal Podgorski ◽  
Maciej Polanczyk ◽  
Aleksandra Piechota-Polanczyk ◽  
Christoph Neumayer ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Cardiovascular System ◽  
Patient Specific ◽  
Abdominal Aortic ◽  
Human Cardiovascular System

scholarly journals Digital subtraction angiography of the human cardiovascular system

1980 ◽  
Vol 135 (6) ◽  
pp. 1153-1160 ◽  
Author(s):  
TF Meaney ◽  
MA Weinstein ◽  
E Buonocore ◽  
W Pavlicek ◽  
GP Borkowski ◽  
...  
Keyword(s):  
Cardiovascular System ◽  
Digital Subtraction Angiography ◽  
Digital Subtraction ◽  
Human Cardiovascular System

Synchronization of low-frequency oscillations in the human cardiovascular system

2009 ◽  
Vol 19 (3) ◽  
pp. 033112 ◽  
Author(s):  
A. S. Karavaev ◽  
M. D. Prokhorov ◽  
V. I. Ponomarenko ◽  
A. R. Kiselev ◽  
V. I. Gridnev ◽  
...  
Keyword(s):  
Cardiovascular System ◽  
Low Frequency ◽  
Low Frequency Oscillations ◽  
Human Cardiovascular System

scholarly journals The effect of mirthful laughter on the human cardiovascular system

2009 ◽  
Vol 73 (5) ◽  
pp. 636-639 ◽  
Author(s):  
Michael Miller ◽  
William F. Fry
Keyword(s):  
Cardiovascular System ◽  
Human Cardiovascular System

scholarly journals Modeling of the Human Cardiovascular System for Detection of Atherosclerosis

2018 ◽  
Vol 51 (15) ◽  
pp. 545-550
Author(s):  
Karan Jain ◽  
Amit Patra ◽  
Srinivasu Maka
Keyword(s):  
Cardiovascular System ◽  
Human Cardiovascular System
Sign in / Sign up

Export Citation Format

Share Document