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Showing 1 to 20 of 20 for “"Baroreflex Sensitivity"”.
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Baroreflex sensitivity and developmental coordination disorder
… One indicator of cardiovascular health is baroreflex sensitivity (BRS), which is a measure of short term BP regulation that is accomplished through changes in HR. Diminished BRS is predictive of cardiovascular morbidity and mortality. The purpose of this study was to investigate BRS in 117 …
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Multidimensional Cardioception and Trait Anxiety: Potential Clues from Baroreflex Sensitivity
… in anxiety and interoception is largely unknown. Baroreflex sensitivity (BRS) has been implicated in interoceptive processes yet no known research directly measures this in relation to multidimensional cardioception. The present study aimed to assess the degree to which IS, IAC, IAW, and BRS …
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Investigating the Effects of High-Intensity Interval Training on Baroreflex Sensitivity
Cardiovagal baroreflex sensitivity (cvBRS) is known to be influenced by endurance exercise. In fact, endurance exercisers typically display a greater cvBRS compared to sedentary controls. Despite the merits of endurance training, adherence to exercise is a problem for many individuals. …
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Modulators of Baroreflex Function in Conditions Associated with Hypertension
… autonomic nervous system activity. Importantly, baroreflex sensitivity for control of heart rate, an important maker of parasympathetic function, is reduced in conditions associated with hypertension and is believed to precede and contribute to the pathogenesis of hypertension. Therefore, it is …
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The effects of muscle mechanoreflex stimulation via passive muscle stretch on baroreflex function in humans
… muscle mechanoreflex stimulation on the baroreflex is unknown. Therefore, this thesis investigated the effects of muscle mechanoreflex stimulation via passive calf muscle stretch on baroreflex function in humans. Firstly, spontaneous baroreflex sensitivity decreases progressively during …
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Alterations in the Brain Renin-Angiotensin System in a Model of Fetal Programming
… decreased autonomic function in young adults. Baroreflex sensitivity for control of heart rate is an important marker of autonomic function and is reduced in conditions associated with hypertension. Indeed, sheep exposed in utero to BM develop decreased baroreflex sensitivity by 6-weeks of age …
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Vagus Nerve Stimulation In Hypertensive Rats: Assessing Pathophysiology Using ECG And Pressure Data
… in the time domain was employed to measure baroreflex sensitivity. Artifacts and ectopic beats can cause errors in the analysis of these metrics, so we also developed and validated robust pre-processing methods to edit ECG and pressure data in order to acquire clean signals. Results show …
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Blood Pressure Regulation by the Endocannabinoid System in Conditions Associated with Hypertension
… imbalance in autonomic nervous system activity. Baroreflex sensitivity for control of heart rate, an important index of vagus nerve function as well as general morbidity and mortality, is often impaired in conditions associated with hypertension. Restoration of baroreflex function is now …
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The Assessment of Autonomic Function in Young Adults with an Elevated Risk of Metabolic Syndrome
… In the second visit, spontaneous cardiovagal baroreflex sensitivity (cBRS) and heart rate variability (HRV) were evaluated during ten minutes of supine rest, where heart rate (HR), beat-by-beat blood pressure (BP), and breathing frequency were recorded continuously and analyzed using the …
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Effects of low-intensity exercise on blood pressure, heart rate, rate-pressure-product and cardiac autonomic function in hypertensive women
… HR, RPP, heart rate variability and spontaneous baroreflex sensitivity were measured at rest and during standing and low intensity steady-state exercise. The exercise group participated in a 12-week, low-intensity walking program, 5 days/week, while the comparison group continued with usual …
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Aerobic Fitness, Physical Activity, and Baroreflex Senstivity in Healthy Adolescents
… aerobic fitness, physical activity (PA), and baroreflex sensitivity (BRS) in healthy adolescents. METHODS: Spontaneous BRS was measured for 10 minutes in the supine position using a Continuous Non-Invasive Arterial Pressure Monitor (CNAP) and a 3-lead ECG. Nevrokard Software was used to …
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Resistance training for patients with chronic heart failure
… to vasodilator stimuli was not altered. Baroreflex sensitivity increased non-significantly. A favourable trend in autonomic status and vascular tone was observed. Thus resistance training in CHF patients increased muscle strength and endurance while reducing the demand for oxygen and …
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Role of the Baroreflex in Long-Term Blood Pressure Regulation in Children Born With Very Low Birth Weight
… One mechanism of short-term BP regulation is the baroreflex, which can be assessed by calculating baroreflex sensitivity (BRS). There is evidence in animals that the baroreflex may play a role in regulating BP on a long-term basis, but evidence is lacking in humans, particularly children. …
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Potential influence of serum uric acid concentration on regulation of the human cardiovascular system
… platelet aggregability, systemic haemodynamics, baroreflex sensitivity, large arterial stiffness, and endothelial function were studied in healthy subjects. The effects of high uric acid concentrations were studied in a model of acute exercise-induced oxidative stress, and in regular smokers and …
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Cardiovascular and Inflammatory Consequences of Adverse Childhood Experiences
… on change in arterial stiffness and cardiovagal baroreflex sensitivity (cvBRS) from childhood to young adulthood. Study 1 identified significant interactions between ≥ 4 ACEs and time, and maltreatment by time which were associated with a greater increase in systemic pulse wave velocity from …
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NEUROINFLAMMATION AND SEX-DEPENDENT SIGNALING WITHIN THE DORSAL MEDULLA IN A MODEL OF FETAL PROGRAMMING: EFFECTS OF ANGIOTENSIN-(1-7) SUPPLEMENTATION
… Sheep exposed in utero to BM develop decreased baroreflex sensitivity (BRS) by 6 weeks of age and increased mean arterial pressure (MAP) by 6 months of age. These changes in blood pressure and autonomic function are associated with alterations in components of the brain, renal and circulating …
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Functional Identification of Nucleus Tractus Solitarius (NTS) Barosensitive Neurons: Effect of Chronic Intermittent Hypoxia (CIH)
… sleep apnea (OSA). Previously, we showed that baroreflex control of heart rate (HR) (baroreflex sensitivity) is reduced in CIH rats. While afferent function and HR in response to vagal efferent stimulation are enhanced, the effect of CIH on the central components, in particular NTS, is still …
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Novel Interventions to Improve Cerebral and Peripheral Vascular Function
… vascular function. In Study 4, dCA and baroreflex sensitivity (BRS) data collected during 0.10Hz squat stands manoeuvres was obtained from 206 individuals and analysed using transfer function analysis. Cross-sectional associations between ages were examined using linear regression …
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Longterm peripheral baroreflex and chemoreflex function after bilateral eversion carotid endarterectomy
… the long-term effect of the e-CEA on arterial baroreflex and peripheral chemoreflex function in humans. Methods A retrospective review was conducted on a prospectively compiled computerized database of 3128 CEAs performed on 2617 patients at our Center between January 2001 and March 2006. …