Autonomic cardiac control during the cold pressor test in normal subjects
نویسندگان
چکیده
1 Université de Franche Comté, EA 3920 and IFR133, Physiologie, Faculté de Médecine, Besançon, France 2 Centre Hospitalier Universitaire, Explorations fonctionnelles Physiologie, Besançon, France 3 Université de la Méditerranée, EA 3280, Physiopathologie et action thérapeutique des gaz sous pression, Marseille, France and Institut de Médecine Navale du Service de Santé des Armées, Toulon, France
منابع مشابه
Effects of the cold pressor test on cardiac autonomic control in normal subjects.
The cold pressor test (CPT) triggers in healthy subjects a vascular sympathetic activation and an increase in blood pressure. The heart rate (HR) response to this test is less well defined, with a high inter-individual variability. We used traditional spectral analysis together with the non-linear detrended fluctuation analysis to study the autonomic control of HR during a 3-min CPT. 39 healthy...
متن کاملHuman obesity is characterized by a selective potentiation of central chemoreflex sensitivity.
The chemoreflexes are an important mechanism for regulation of both breathing and autonomic cardiovascular function. Obesity is associated with an increased risk of alveolar hypoventilation and carbon dioxide retention, suggesting that abnormalities in chemoreflex control mechanisms may be implicated. We tested the hypothesis that chemoreflex function is altered in obesity. We compared ventilat...
متن کاملCold pressor test: Effects on cardiac autonomic control and cerebral hemodynamic response in patients with diabetes mellitus
The study aimed to estimate the changes in the cardiac autonomic function and the cerebral blood flow respose to cold stress in patients with diabetes mellitus type 2. Twenty patients with diabetes mellitus type 2 (age range 45-67years) and 10 presumed healthy age and sex matched controls were included in the study. Simultaneous transcranial Doppler and heart rate monitoring was performed at re...
متن کاملReversal of Impact of Bmi on Autonomic Modulation in Geriatric Population
Background: The main cause for most of the old age complication is due to derangement of cardiovascular and autonomic nervous activity. This study was proposed to record and asses the HRV in elderly population involved with respect to Body mass index to predict and prevent further deterioration and thereby help the elder to lead more normal, healthy and active life. Materials& methods: 80 norma...
متن کاملDefective reflex control of heart rate in dialysis patients: evidence for an afferent autonomic lesion.
1. To localize the site of autonomic abnormality in patients undergoing haemodialysis, tests of overall autonomic function based on either changes in blood pressure (posture, sustained handgrip) or heart rate (Valsalva manoeuvre, 30 : 15 ratio, deep breathing test) were used. Integrity of the sympathetic efferent arc was examined by using the cold pressor test and the parasympathetic efferent a...
متن کامل