Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

02 September 1996

Application of entropy and energy measures of fuzziness to heart rate variability analysis

Piotr Rozentryt, Ernest Czogała, Jacek Łęski

Med Sci Monit 1996; 2(5): MT642-649 :: ID: 500097

Abstract

The paper deals with the application of entropy and energy measure of fuzziness to processing heart rate variability (HRV) signal. The signal is a source of important information about mechanisms regulating the heart activity. Recently it has been proved that tracing the changes of the signal is of great significance in predicting the course of numerous diseases. The variability of the heart rhythm is illustrated by means of several indices. The common feature of most indices is an assumption of the stationarity of the HRV signal. Investigations show that the majority of biological processes, including the HRV signal, are characterized by nonstationarity or at most quasi-stationarity, which significantly limits the reliability of the above mentioned indices. As a result, new methods without the above limitations have been sought, also taking into account new results in engineering. This paper presents the idea of a fuzzy signal and methods of determining the energy and entropy measures of fuzziness of such a signal. The theoretical considerations have been illustrated with digital processing of the real HRV signal.

Keywords: fuzzy signal, measures of fuzziness, processing of HRV signal

0 Comments

Editorial

01 February 2023 : Editorial  

Editorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.939580

Med Sci Monit 2023; 29:e939580

SARS-CoV-2/COVID-19

19 January 2023 : Clinical Research  

Evaluation of Health-Related Quality of Life and Mental Health in 729 Medical Students in Indonesia During ...

Med Sci Monit In Press; DOI: 10.12659/MSM.938892  

27 December 2022 : Clinical Research  

Effect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...

Med Sci Monit 2022; 28:e938926

10 December 2022 : Clinical Research  

Retrospective Study to Identify Risk Factors for Severe Disease and Mortality Using the Modified Early Warn...

Med Sci Monit 2022; 28:e938647

In Press

06 Feb 2023 : Clinical Research  

Double C-Arm Digital Subtraction Angiography Guidance During Transjugular Intrahepatic Portosystemic Shunt ...

Med Sci Monit In Press; DOI: 10.12659/MSM.938912  

06 Feb 2023 : Review article  

Evolution of Hybrid Intelligence and Its Application in Evidence-Based Medicine: A Review

Med Sci Monit In Press; DOI: 10.12659/MSM.939366  

03 Feb 2023 : Clinical Research  

Treatment of Gingival Recession Defects with Pouch and Tunnel Technique Using Connective Tissue Graft and L...

Med Sci Monit In Press; DOI: 10.12659/MSM.938865  

02 Feb 2023 : Clinical Research  

Online Questionnaire-Based Study to Evaluate the Attitudes and Use of Rubber Dental Dams by Saudi Dental Pr...

Med Sci Monit In Press; DOI: 10.12659/MSM.938672  

Most Viewed Current Articles

13 Nov 2021 : Clinical Research  

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

DOI :10.12659/MSM.932788

Med Sci Monit 2021; 27:e932788

30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750