scholarly journals Assessment of baroreceptor reflex sensitivity in young obese Saudi males at rest and in response to physiological challenges

2020 ◽  
Vol 8 (21) ◽  
Author(s):  
Abdullah N. AlShahrani ◽  
Lubna I. Al‐Asoom ◽  
Ahmed A. Alsunni ◽  
Nabil S. Elbahai ◽  
Talay Yar
Keyword(s):  
Baroreceptor Reflex ◽  
Baroreceptor Reflex Sensitivity

BP and HR Interactions: Assessment of Spontaneous Baroreceptor Reflex Sensitivity

2017 ◽  
pp. 199-226
Author(s):  
Tatjana Lončar-Turukalo ◽  
Nina Japundžić-Žigon ◽  
Olivera Šarenac ◽  
Dragana Bajić
Keyword(s):  
Baroreceptor Reflex ◽  
Baroreceptor Reflex Sensitivity

Atrial Natriuretic Factor in Central Cardiovascular Control

Physiology ◽  
1993 ◽  
Vol 8 (5) ◽  
pp. 223-228 ◽  
Author(s):  
S Oparil ◽  
JM Wyss
Keyword(s):  
Atrial Natriuretic Factor ◽  
Spontaneously Hypertensive Rat ◽  
Brain Regions ◽  
Baroreceptor Reflex ◽  
Hypothalamic Area ◽  
Spontaneously Hypertensive ◽  
Natriuretic Factor ◽  
Effector System ◽  
Baroreceptor Reflex Sensitivity ◽  
Atrial Natriuretic

A complete atrial natriuretic factor (ANF) synthetic, processing, and effector system is found in rat brain. ANF in critical brain regions, including anterior hypothalamic area and nucleus tractus solitarii, contributes importantly to the tonic control of blood pressure, sympathetic outflow, and baroreceptor reflex sensitivity in the spontaneously hypertensive rat.

scholarly journals Cardiovascular effects of reflexology in healthy individuals: evidence for a specific increase in blood pressure

2012 ◽  
Vol 2 (1) ◽  
pp. 4 ◽  
Author(s):  
Elisabeth Ruiz Padial ◽  
Nieves Torres López ◽  
Javier Luna Bujaldón ◽  
Isabel Espadas Villanueva ◽  
Gustavo Reyes del Paso
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Waiting Time ◽  
Healing Process ◽  
Cardiovascular Effects ◽  
Baroreceptor Reflex ◽  
Control Group ◽  
Time Control ◽  
Baroreceptor Reflex Sensitivity

The present study evaluates the cardiovascular effects of reflexology in a healthy sample. Forty-one participants were randomly assigned to one of three experimental groups: reflexology (n=15), non-professional foot massage (n=14), and a waiting time control group (n=12). Dependent variables were systolic, diastolic and mean blood pressure, inter-beat interval, heart rate variability and baroreceptor reflex sensitivity measured pre- and post- interventions. The study was performed during three 40-min sessions separated by weekly intervals. Results show that the three manipulations produce similar increases in inter-beat interval, heart rate variability and baroreceptor reflex sensitivity. Reflexology specifically produces an increase in blood pressure, which increases gradually over the three sessions. The parallel increase in heart rate variability and baroreceptor reflex sensitivity together with the increase in blood pressure suggest that reflexology is associated with a co-activation of both sympathetic and parasympathetic branches of the Autonomic Nervous System. These changes could be helpful in optimizing homeostatic activity, promoting the healing process and increasing the human organism’s capacity to respond adaptively to internal and external challenges. Finally, the observed physiological changes in the waiting-time control group shows the relevance of habituation processes and suggests the need for addition of waiting-time control groups in future studies.

Validation of spontaneous assessment of baroreceptor reflex sensitivity and its relation to heart rate variability in the ovine fetus pre- and near-term

2009 ◽  
Vol 87 (9) ◽  
pp. 736-742 ◽  
Author(s):  
Martin G. Frasch ◽  
Thomas Müller ◽  
Mark Szynkaruk ◽  
Matthias Schwab
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Reference Method ◽  
Baroreceptor Reflex ◽  
Vasoactive Drugs ◽  
Sequence Method ◽  
Baroreceptor Reflex Sensitivity ◽  
Ovine Fetus ◽  
Fetal Heart Rate Variability ◽  
Near Term

Assessment of baroreceptor reflex sensitivity (BRS) in the ovine fetus provides insight into autonomic cardiovascular regulation. Currently, assessment of BRS relies on vasoactive drugs, but this approach is limited by feasibility issues and by the nonphysiologic nature of the stimulus. Thus we aimed to validate the method of spontaneous BRS assessment against the reference method of using vasoactive drugs in preterm (0.76 gestation, n = 16) and near-term (0.86 gestation, n = 16) chronically instrumented ovine fetuses. The BRS measures derived from the spontaneous and reference methods correlated at both gestational ages (R = 0.67 ± 0.03). The sequence method of spontaneous BRS measures also correlated both to the root mean square of standard deviations (RMSSD), which is a measure of fetal heart rate variability reflecting vagal modulation (R = 0.69 ± 0.03), and to fetal body weight (R = 0.65 ± 0.03), which is a surrogate for growth trajectory of each fetus. The methodology presented may aid in developing new models to study BRS and cardiovascular control in ovine fetus in the last trimester of pregnancy.

scholarly journals Changes in Baroreceptor Reflex Sensitivity at Various Reclining Angles during Rest and Dynamic Exercise

2016 ◽  
Vol 31 (4) ◽  
pp. 517-520
Author(s):  
Akira SHŌBO ◽  
Hiroki YAMAZAKI ◽  
Mai YUKI ◽  
Ryo KOBAYAKAWA ◽  
Gaku NISHIZAWA ◽  
...  
Keyword(s):  
Baroreceptor Reflex ◽  
Dynamic Exercise ◽  
Baroreceptor Reflex Sensitivity

Centrally infused galanin-(1–15) but not galanin-(1–29) reduces the baroreceptor reflex sensitivity in the rat

1996 ◽  
Vol 741 (1-2) ◽  
pp. 32-37 ◽  
Author(s):  
Zaida Diaz ◽  
JoséA. Narváez ◽  
Peter B. Hedlund ◽  
JoséA. Aguirre ◽  
Salvador González-Barón ◽  
...  
Keyword(s):  
Baroreceptor Reflex ◽  
Baroreceptor Reflex Sensitivity
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