Indices of Cardiorespiratory Synchronization from Rat Blood Pressure Data
نویسندگان
چکیده
A recently developed method for the detection of phase synchronization between several oscillatory processes from one-dimensional signals has been extended to allow estimation of synchronization indices. It has been applied to blood pressure signals from freely moving rats. Each rat underwent four stages: 1) healthy; 2) healthy but challenged by beta-blockers; 3) with stress-induced myocardial injuries; 4) with the stress-induced injuries challenged by beta-blockers. It is shown that cardiorespiratory synchronization plays an essential role at each of these stages.
منابع مشابه
The relationship between circulating levels of IL-18 and leptin, HsCRP, blood pressure and cardiorespiratory function in obese and lean men
ABSTRACT Introduction: Interleukin-18 (IL-18) is a proinflammatory cytokine that is produced in adipose tissue and skeletal muscle. The circulating levels of IL-18 increases in obesity and some metabolic and cardiorespiratory diseases. The aim of the present study is to investigate the relationship between circulating levels of IL-18 and leptin, high-sensitivity C-reactive protei...
متن کاملModel for cardiorespiratory synchronization in humans.
Recent experimental studies suggest that there is evidence for a synchronization between human heartbeat and respiration. We develop a physiologically plausible model for this cardiorespiratory synchronization, and numerically show that the model can exhibit stable synchronization against given perturbations. In our model, in addition to the well-known influence of respiration on heartbeat, the...
متن کاملEffect of Walking Exercise on Changes in Cardiorespiratory Fitness, Metabolic Syndrome Markers, and High-molecular-weight Adiponectin in Obese Middle-aged Women
[Purpose] The purpose of this study was to assess the effect of a 24-week exercise intervention on cardiorespiratory fitness, metabolic syndrome markers, and high-molecular-weight (HMW) adiponectin among obese middle-aged women. [Subjects] The subjects were 14 obese middle-aged women. [Methods] The exercise program involved walking at 50-60% of the maximum oxygen consumption, 3 times a week, fo...
متن کاملChronology of blood pressure changes in renal hypertension induced by solid plexiglass clips in the rat
The objective of this study was to determine the chronology of changes in blood pressure in renalhypertension induced by solid plexiglass clips in rats. Saw blades with the thickness of 0.21-0.22 mm wereused to make clips sized 4 × 2 × 2 mm from a piece of 2-mm thick plexiglass. Rats were subjected to shamoperation or left renal arterial clipping, and 1, 2, 3 and 4 weeks later blood pressure, a...
متن کاملCardiorespiratory Synchronization: is it a Real Phenomenon?
In this work we present a quantitative approach to the analysis of cardiorespiratory synchronization, which is a newly discovered phenomenon. The primary aim of this stu+ is to determine whether cardiorespiratory synchronization is a real phenomenon or a random one. We utilized the surrogate data analysis approach. A surrogate data set was constructed ji-om recordings of ECG and respiration obt...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015