Background: Electrocardiogram (ECG) is defined as an electrical signal, which represents cardiac activity. Heart rate variability (HRV) as the variation of interval between two consecutive heartbeats represents the balance between the sympathetic and parasympathetic branches of the autonomic nervous system.Objective: In this study, we aimed to evaluate the efficiency of discrete wavelet transfo...

background and objective: obstructive sleep apnea syndrome (osas) is a prevalent disease in adults. limited evidence regarding the effect of severity of sleep apnea and depression on heart rate variability (hrv) indices exists. hence, we decided to focus on the association between hrv and severity of osas based on depression score. materials and methods: a total of 193 patients with confirmed o...

The impedance cardiography (ICG) shows the caused in heart. ICG gives a clear and accurate results applied techniques reduce artifacts also mathematical calculations. signal various physiological non-physiological situations, can calculate heart volume. computational complexity is main part for remote health care. adaptive used this project reduces or removes noise signal, Improve signal. Mainl...

This paper proposes a mathematical model for the heart rate signal using hand GSR and power samples of the R peak of the ECG through multiple regression analysis. Mathematical model helps to study the relation of the dependent function with its independent functions and to correlate with the biological processes. The paper proposed four models for heart rate. Each model had R 2 values such as 0...

in this paper the main objective is to quantify and compare the instantaneous value of heart rate for normal breathing patterns during meditation and non meditation conditions. this paper involves analysis of variance (anova) technique for the analysis of the heart rate variability patterns during the meditative and non meditative states. the analysis is divided into three stages i.e. data acqu...

ramadan is a holy month for muslims and fasting in this month is the rule for any healthy matured person. nutritional and behavioral changes occurred during ramadan fasting may lead to several physiological change, such as blood pressure (2). studies evaluated the effects of ramadan fasting on blood pressure in hypertensive patients, are scarce and reported inadequate results. in this paper a s...

The aim of this study is to show that the measures derived from Electrocardiogram (ECG) signals many a time perform better than the same measures obtained from heart rate (HR) signals. A comparison was made to investigate how far the nonlinear symbolic dynamics approach helps to characterize the nonlinear properties of ECG signals and HR signals, and thereby discriminate between normal and cong...

The aim of this study is to show that the measures derived from Electrocardiogram (ECG) signals many a time perform better than the same measures obtained from heart rate (HR) signals. A comparison was made to investigate how far the nonlinear symbolic dynamics approach helps to characterize the nonlinear properties of ECG signals and HR signals, and thereby discriminate between normal and cong...

Abstract Background The significant features like an amplitude and intervals of electrocardiograph or P-QRS-T wave represent the functionality heart. Accurate extraction these helps in capturing characteristics signal helpful for detection cardiac abnormalities. In this paper, a novel folding-based algorithm is proposed to obtain detailed information about complex morphology signal. It explores...