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A sliding window approach to detrended fluctuation analysis of heart rate variability
2013
2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
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Introduction Heart rate variability (HRV): study of the nervous system control over circulatory function [1] Traditional analysis: Time-domain, frequency-domain, geometrical techniques Generally require ...
the signal to be stationary Analysis of long duration signals not recommeded Detrended Fluctuation Analysis (DFA) [2] Quantifies long-term correlations Able to distinguish intrinsic HRV features from ...
doi:10.1109/embc.2013.6610241
pmid:24110428
dblp:conf/embc/AlmeidaSC13
fatcat:st73uaeptjhm5epygov5yjcty4
Asymmetric detrended fluctuation analysis reveals asymmetry in the RR intervals time series
2016
Journal of Applied Mathematics and Computational Mechanics
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In this paper we apply the Asymmetric Detrended Fluctuation Analysis to the RR intervals time series. ...
The mathematical background of the ADFA method is discussed in the context of heart rate variability and heart rate asymmetry. ...
The most often used approach to RR intervals time series is the heart rate variability (HRV) analysis which explores the changes of this series in time and tries to relate the results to various physiological ...
doi:10.17512/jamcm.2016.1.10
fatcat:hcmvqaiiz5ddve7zzy7j4xgeq4
Linear and nonlinear heart rate variability risk stratification in heart failure patients
2008
2008 Computers in Cardiology
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Objective of this study was to investigate whether linear and nonlinear heart rate variability (HRV) indices enhance risk prediction in patients with CHF. ...
Chronic heart failure (CHF) is a major and growing public health concern (~23 million people worldwide) with five-year survival rates of 25% in men and 38% in women. ...
In a further SD approach [10] a sliding window w consisting of five BBIs is shifted (here =1) over the whole BBI time series (equation 1). ...
doi:10.1109/cic.2008.4749102
fatcat:szxrkc23zbdsbi5cgaq44iil2u
Entropy and Gaussianity - Measures of Deterministic Dynamics of Heart Rate and Blood Pressure Signals of Rats
2007
2007 5th International Symposium on Intelligent Systems and Informatics
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Heart rate and blood pressure short-term variability analysis represent promising quantitative measures of the cardiovascular autonomic controls. ...
The analysis include traditional statistical analytical tools and a number of methods based on nonlinear system theory, recently developed to give better insight into complex HR and BP time series. ...
Acknowledgement This paper was supported in part by Fundamental research grant no. 145062, Ministry of Science, Serbia. ...
doi:10.1109/sisy.2007.4342617
fatcat:d2quaglpgrds7ja5ifakroxizq
Signal stationarity assessment for the heart rate variability spectral analysis
2008
2008 Computers in Cardiology
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The results of experimental examination of different approaches to the signal stationarity assessment with regard to the heart rate variability spectral parameters estimation are presented. ...
The following three approaches were considered: autoregressive parameters monitoring; analysis of detrended signal and assessment of generalized likelihood ratio. ...
Introduction The technique of heart rate variability (HRV) analysis is based on statistical and spectral analysis of NN intervals (time intervals between adjacent heart beats of background rhythm). ...
doi:10.1109/cic.2008.4749204
fatcat:u265c3uczvghhe7qyrruotfwna
Altered Heart Rhythm Dynamics in Very Low Birth Weight Infants With Impending Intraventricular Hemorrhage
2009
Pediatrics
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Detrended fluctuation analysis, a nonlinear fractal heart rate variability method, was used to assess the fractal dynamics of the heart rhythm. ...
Because alterations in the autonomic nervous system's control of heart rhythm have been associated with intraventricular hemorrhage after its development, we sought to determine if early subtle alterations ...
Keywords intraventricular hemorrhage; prematurity; very low birth weight infants; heart rate variability fractal analysis; detrended fluctuation analysis Despite advances in obstetrics and neonatal intensive ...
doi:10.1542/peds.2008-0253
pmid:19255007
pmcid:PMC2871543
fatcat:2se5bnohibe5jfpz3hjvcxtpuq
Detrended fluctuation analysis of scaling crossover effects
2010
Europhysics letters
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The "two exponent" approach was used to quantify heart rate variability in various physiological conditions [7] [8] [9] [10] [11] , dynamics of arterial blood pressure [12, 13] and cerebral blood flow ...
The initial application of DFA to heart rate variability, namely to inter-beat interval time series, revealed the existence of two scaling (a) E-mail: Miroslaw.Latka@pwr.wroc.pl regimes with the crossover ...
doi:10.1209/0295-5075/90/10009
fatcat:evrk3j3nurddlpdi6flcqy7fre
The role of sympathetic and vagal cardiac control on complexity of heart rate dynamics
2017
American Journal of Physiology. Heart and Circulatory Physiology
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Analysis of heart rate variability (HRV) by nonlinear approaches has been gaining interest due to their ability to extract additional information from heart rate (HR) dynamics that are not detectable by ...
These findings are important to help the interpretation of future studies. heart rate variability; multiscale entropy; detrended fluctuation analysis; autonomic nervous system; nonlinear dynamics Address ...
Heart Rate Variability Time domain analysis. ...
doi:10.1152/ajpheart.00507.2016
pmid:28011585
fatcat:aks73u4p35bdznh73ojkgsnsqa
Modelling stress in public speaking: Evolution of stress levels during conference presentations
2016
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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This study proposes a new framework to analyse the heart rate variability (HRV) in mobile scenarios by introducing novel R-peak detection and HRV detrending algorithms. ...
Next, four quantitative metricssample entropy, LF HRV , HF HRV and LF/HF ratio -are used to estimate stress levels in two public speaking events: (i) a presentation in front of an audience and (ii) an ...
ANALYSIS RESULTS A sliding window based approach was used for computing the SampEn, PSD of LF HRV and HF HRV , and the LF/HF ratio, the metrics chosen to quantify the evolution of stress levels. ...
doi:10.1109/icassp.2016.7471788
dblp:conf/icassp/ChanwimalueangA16
fatcat:ng4l62zdpzczpoiissid3grxg4
Predicting the onset of period-doubling bifurcations in noisy cardiac systems
2015
Proceedings of the National Academy of Sciences of the United States of America
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Based on these plots, we develop a quantitative measure using the slope of the return map to assess how close the system is to the bifurcation. ...
We treat embryonic chick cardiac cells with a potassium channel blocker, which leads to the initiation of alternating rhythms. ...
This work was supported by the Heart and Stroke Foundation of Canada, Canadian Institutes of Health Research, and Natural Sciences and Engineering Research Council of Canada. ...
doi:10.1073/pnas.1424320112
pmid:26170301
pmcid:PMC4522826
fatcat:rpju7stxxjapfh5cytixnu45ge
Clustering Heart Rate Dynamics Is Associated with β-Adrenergic Receptor Polymorphisms: Analysis by Information-Based Similarity Index
2011
PLoS ONE
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Using heart rate variability (HRV) as an indicator of autonomic function, we present a bottom-up genotype-phenotype analysis to investigate the association between b-AR gene polymorphisms and heart rate ...
Conclusions: We demonstrate a bottom-up categorization approach combining the IBS method and hierarchical cluster analysis to detect subgroups of subjects with HRV phenotypes associated with b-AR polymorphisms ...
fluctuation analysis, a
0.9060.07 0.9060.07 0.940
Detrended fluctuation analysis, a 1
1.2160.19 1.2260.18 0.749
Detrended fluctuation analysis, a 2
1.0760.09 1.0760.09 0.868
Multiscale entropy ...
doi:10.1371/journal.pone.0019232
pmid:21573230
pmcid:PMC3087751
fatcat:47ndo55pfzdhlbw4onyaivi2pe
Probing the Fractal Pattern of Heartbeats in Drosophila Pupae by Visible Optical Recording System
2016
Scientific Reports
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We developed a non-invasive visible optical heart rate recording system especially suitable for longterm recording by using principal component analysis (PCA) instead of fluorescence recording system to ...
The most primitive heart system of the Drosophila provides a useful model to understand the evolutional origin of such a fractal pattern as well as the alterations of fractal pattern during diseased statuses ...
To examine fractal patterns in heart beats fluctuations, we studied the correlation property in heart rate fluctuations from the control group by using the detrended fluctuation analysis (DFA). ...
doi:10.1038/srep31950
pmid:27535299
pmcid:PMC4989149
fatcat:i43o4hoi2fdp7mr267uty4cl2q
Dynamics of electroencephalogram entropy and pitfalls of scaling detection
2010
Physical Review E
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We find that the crossover between two scaling regions seen in detrended fluctuation analysis ͑DFA͒ of EEG increments does not originate from the underlying dynamics but is merely an artifact of the algorithm ...
In particular, a crossover between two regions with different scaling exponents has been reported. Herein we study the time evolution of diffusion entropy to elucidate the scaling of EEG time series. ...
Early on, the application of DFA to heart rate variability, namely to the interbeat interval time series, revealed the existence of two scaling regimes ͓24͔. ...
doi:10.1103/physreve.81.031909
pmid:20365772
fatcat:vfyzvqdvkrhilk6ezba7zk5ncu
Quantification of Beat-To-Beat Variability of Action Potential Durations in Langendorff-Perfused Mouse Hearts
2018
Frontiers in Physiology
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Detrended fluctuation analysis revealed short- and long-term fluctuation slopes of 1.80 ± 0.15 and 0.85 ± 0.29, respectively. ...
Conclusion: Beat-to-beat variability in APD is observed in mouse hearts during regular pacing. Atrial MAPs showed greater degree of variability than ventricular MAPs. ...
sliding-window segments. ...
doi:10.3389/fphys.2018.01578
pmid:30538638
pmcid:PMC6277547
fatcat:67k7fihotvelfmwz6ejlse5kmi
Characterizing Detrended Fluctuation Analysis of multifractional Brownian motion
2015
Physica A: Statistical Mechanics and its Applications
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Rescaled range analysis (R/S ) [12] and fluctuation analysis (FA) [13] are statistical tools developed to estimate the variability of time series through estimation of Hurst exponent, H [14], a statistic ...
Our results serve as a bench-mark for using DFA as a sliding window estimator to obtain H(t) from time series data. I. ...
estimator techniques with sliding windows. ...
doi:10.1016/j.physa.2014.10.016
fatcat:5izezovagjbvnjyoaeojlrvfoq
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