Results 31 to 40 of about 23,312 (152)

Baroreflex amplification by carotid sinus stimulation

, 2023
Cardiovascular diseases including arterial hypertension and congestive heart failure are often associated with an imbalance in cardiovascular autonomic control toward sympathetic predominance.
Jordan, J., Tank, J.
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Arterial baroreflex regulation of cerebral blood flow in humans

Journal of Physical Fitness and Sports Medicine, 2012
The arterial baroreflex plays an essential role in the short-term regulation of arterial blood pressure, and thus helps ensure that the vital organs are adequately perfused.
Shigehiko Ogoh, Ai Hirasawa, James P. Fisher   +2 more
doaj   +1 more source

Calibration of Baroreflex Equilibrium Diagram Based on Exogenous Pressor Agents in Chronic Heart Failure Rats

, 2015
A baroreflex equilibrium diagram describes the relation between input pressure and sympathetic nerve activity (SNA) and that between SNA and arterial pressure (AP).
Meihua Li, Can Zheng, Toru Kawada, Shuji Shimizu, Michael J. Turner, Yusuke Sata, Masaru Sugimachi   +6 more
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Resting spontaneous baroreflex sensitivity and cardiac autonomic control in anabolic androgenic steroid users

Clinics, 2018
OBJECTIVES: Misuse of anabolic androgenic steroids in athletes is a strategy used to enhance strength and skeletal muscle hypertrophy. However, its abuse leads to an imbalance in muscle sympathetic nerve activity, increased vascular resistance, and ...
Marcelo R. dos Santos, Ana L.C. Sayegh, Rafael Armani, Valéria Costa-Hong, Francis R. de Souza, Edgar Toschi-Dias, Luiz A. Bortolotto, Mauricio Yonamine, Carlos E. Negrão, Maria-Janieire N.N. Alves   +9 more
doaj   +1 more source

Exercise-Induced Modulation of Baroreflex Control of Sympathetic Nerve Activity

Frontiers in Neuroscience, 2018
Exercise modulates arterial pressure (AP) regulation over various time spans. AP increases at the onset of exercise and this increase is then sustained during exercise. Once exercise is stopped, AP is suppressed for up to an hour afterwards.
Kenju Miki, Misa Yoshimoto
doaj   +1 more source

Using machine learning to estimate the calendar age based on autonomic cardiovascular function

Frontiers in Aging Neuroscience, 2023
IntroductionAging is accompanied by physiological changes in cardiovascular regulation that can be evaluated using a variety of metrics. In this study, we employ machine learning on autonomic cardiovascular indices in order to estimate participants’ age ...
Andy Schumann, Christian Gaser, Christian Gaser, Rassoul Sabeghi, P. Christian Schulze, Sven Festag, Sven Festag, Cord Spreckelsen, Cord Spreckelsen, Karl-Jürgen Bär   +9 more
doaj   +1 more source

Baroreflex and chemoreflex interaction in high-altitude exposure: possible role on exercise performance

Frontiers in Physiology
The hypoxic chemoreflex and the arterial baroreflex are implicated in the ventilatory response to exercise. It is well known that long-term exercise training increases parasympathetic and decreases sympathetic tone, both processes influenced by the ...
Pablo Alvarez-Araos, Pablo Alvarez-Araos, Sergio Jiménez, Camila Salazar-Ardiles, Cristian Núñez-Espinosa, Cristian Núñez-Espinosa, Valeria Paez, Valeria Paez, Maria Rodriguez-Fernandez, Antoine Raberin, Gregoire P. Millet, Rodrigo Iturriaga, Rodrigo Iturriaga, David C. Andrade   +13 more
doaj   +1 more source

Differential Effects of Angiotensin-II Compared to Phenylephrine on Arterial Stiffness and Hemodynamics: A Placebo-Controlled Study in Healthy Humans

Cells, 2021
The α1-adrenoceptor agonist phenylephrine (PE) and Angiotensin II (Ang II) are both potent vasoconstrictors at peripheral resistance arteries. PE has pure vasoconstrictive properties.
Klaas F. Franzen, Moritz Meusel, Julia Engel, Tamara Röcker, Daniel Drömann, Friedhelm Sayk   +5 more
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Baroreflex and non-baroreflex function determined by three methods.

, 2013
SBP-systolic blood pressure; IBI-interbeat interval; HR- heart rate. (a) The sliding window method: SBP and IBI tracings and their correlations during a baroreflex episode (SBP and IBI change in the same direction, upper panel) and during a non ...
Dan Sapoznikov (162802), Michal Dranitzki Elhalel (466764), Dvora Rubinger (162796)   +2 more
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Baroreflex buffering and susceptibility to vasoactive drugs

, 2002
Background- The overall effect of vasoactive drugs on blood pressure is determined by a combination of the direct effect on vascular tone and an indirect baroreflex-mediated effect, a baroreflex buffering of blood pressure.
Arnold, G., Shannon, J.R., Schroeder, C., Robertson, D., Diedrich, A., Biaggioni, I., Jordan, J., Luft, F.C., Lipp, A., Sharma, A.M., Tank, J.   +10 more
core   +1 more source