Relevant bibliographies by topics / Cardiac rhythm variability

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Cardiac rhythm variability'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Cardiac rhythm variability"

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Wright, Shannon E., and Caroline Palmer. "Auditory rhythm complexity affects cardiac dynamics in perception and synchronization." PLOS ONE 18, no. 11 (2023): e0293882. http://dx.doi.org/10.1371/journal.pone.0293882.

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Accurate perception and production of auditory rhythms are key for human behaviors such as speech and music. Auditory rhythms in music range in their complexity: complex rhythms (based on non-integer ratios between successive tone durations) are more difficult to perceive and produce than simple rhythms (based on integer ratios). The physiological activity supporting this behavioral difference is not well understood. In a within-subjects design, we addressed how rhythm complexity affects cardiac dynamics during auditory perception and production. Musically trained adults listened to and synchr
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Chuyan, E. N., I. R. Nikiforov, Elena Aleksandrovna Biryukova, I. S. Mironyuk, and M. Yu Ravaeva. "Ultrahigh frequency electromagnetic radiation modulates cardiac rhythm variability in volunteers." Russian Journal of Physiotherapy, Balneology and Rehabilitation 15, no. 6 (2016): 297–301. http://dx.doi.org/10.18821/1681-3456-2016-15-6-297-301.

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The objective of the present work was to study variability of cardiac rhythms developing under the influence of the 10 day-long course of low-intensity ultrahigh frequency electromagnetic radiation (UHF EMR). It was shown that the courses of UIHF EMR have corrective effect on the cardiovascular system of the volunteers, in the first place by means of reducing the level of centralization of the regulatory mechanisms. The intensity of the influence of this therapy on the cardiac rhythm variability depends on the number of treatment courses and the initial functional state of the volunteers. More
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Oleinikov, V. E., and N. V. Pozdnyakova. "Prognostic importance of late potentials of ventricles and variability of cardiac rhythm in patients with ischemic cardiac disease." Kazan medical journal 79, no. 1 (1998): 19–22. http://dx.doi.org/10.17816/kazmj63427.

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The combined analysis of cardiac rhythm variability indices, signal-averaged electrocardiogram noting late potentials of ventricles is performed. As many as 158 patients with various forms of ischemic cardiac disease and 70 persons of the control group are examined. Signal-averaged electrocardiograms are registered in dynamics during 18 months, cardiac rhythm variability indices are determined, echocardiography is performed.
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Kalyurand, M., E. Loginova та Y. Potekhina. "Dynamics of the Functional State of the Body in Children Presenting Psychic Retardation Under the Influence of Osteopathic Correction (According to the Spectral Index of the Heart Rate Variability)". Russian Osteopathic Journal, № 3-4 (30 грудня 2016): 69–76. http://dx.doi.org/10.32885/2220-0975-2016-3-4-69-76.

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Introduction. Psychic retardation and its correction in children is an important problem in children’s psychoneurology. It is necessary to extend the variety of treatment methods, also by means of osteopathy. The analysis of the cardiac rhythm vaiability gives information about the functional state of the body and permits to follow its dynamics.Research objectives. Evoluate the influence of osteopathic treatment on the functional state of children presenting psychic retardation (according to the data of the spectral analysis of the cardiac rhythm variability). Research methods. An osteopathic e
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Kuznetsov, Sergey V., and Nalalia N. Kuznetsova. "Effects of high doses of ouabain on cardiac, respiratory, and motor activity at newborn rats." Reviews on Clinical Pharmacology and Drug Therapy 19, no. 4 (2021): 395–403. http://dx.doi.org/10.17816/rcf194395-403.

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BACKGROUND: In the early postnatal period, the activation of cholinergic regulation was shown to reveal that lead to development of atypical cardiac rhythm in form of alteration of normal and weak bradycardic rhythm and periods of significant bradycardia.
 AIM: To study the change in the rhythmic activity of cardiac, respiratory and somatomotor systems after Na+/K+-ATPase blockade by ouabain in rats of 3 and 16 days old
 MATERIALS AND METHODS: In 3- (P3) and 16-day-old (P16) rats the change in the rhythmic activity of cardiac, respiratory and somatomotor systems after Na+/K+-ATPase b
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Vornovskaya, O. V., N. B. Haspekova, G. R. Tabejeva, V. Yu Oknin, and A. M. Vein. "Variability dynamic analysis of cardiac rhythm at migraine." Neurology Bulletin XXXII, no. 1-2 (2000): 29–31. http://dx.doi.org/10.17816/nb77691.

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А spectral analysis of cardiac rhythm variability has taken place among patients with migraine. The purpose of that analysis was to determine the role of cerebral and peripheric regulation changes in the paroxysm pathogenesis at different phases of migrain attack: before it, during it and after it. It was established, that in pre-attack period activation of ergotropic mechanisms takes place with further generalized sympathico-parasympathic activation at the moment of migraine attack. Post-attack period is characterized by activity normalization or segmentary sympathic vasomotor and vagal mecha
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Cairo, Beatrice, Riccardo Pernice, Nikola N. Radovanović, Luca Faes, Alberto Porta, and Mirjana M. Platiša. "State Space Correspondence and Cross-Entropy Methods in the Assessment of Bidirectional Cardiorespiratory Coupling in Heart Failure." Entropy 27, no. 7 (2025): 770. https://doi.org/10.3390/e27070770.

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The complex interplay between the cardiac and the respiratory systems, termed cardiorespiratory coupling (CRC), is a bidirectional phenomenon that can be affected by pathologies such as heart failure (HF). In the present work, the potential changes in strength of directional CRC were assessed in HF patients classified according to their cardiac rhythm via two measures of coupling based on k-nearest neighbor (KNN) estimation approaches, cross-entropy (CrossEn) and state space correspondence (SSC), applied on the heart period (HP) and respiratory (RESP) variability series, while also accounting
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Yilmaz, Osman, Murat Ciftel, Kezban Ozturk, et al. "Assessment of heart rate variability in breath holding children by 24 hour Holter monitoring." Cardiology in the Young 25, no. 2 (2013): 317–23. http://dx.doi.org/10.1017/s1047951113002333.

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AbstractPurpose: Previous studies have shown that the underlying pathophysiologic mechanism in children with breath holding may be generalised autonomic dysregulation. Thus, we performed cardiac rhythm and heart rate variability analyses using 24-hour Holter monitoring to evaluate the cardiac effects of autonomic dysregulation in children with breath-holding spells. Methods: We performed cardiac rhythm and heart rate analyses using 24-hour Holter monitors to evaluate the cardiac effects of autonomic dysregulation in children during a breath-holding spell. Our study group consisted of 68 childr
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Korpan, A. S., G. V. Nevoit, Yu V. Teslenko, and M. M. Potyazhenko. "THE TOTAL POWER OF THE HEART AS A PROMISING PARAMETER FOR ASSESSING THE FUNCTIONAL STATE OF THE PATIENT DURING AN OBJECTIVE STRUCTURED CLINICAL EXAMINATION: GNOSEOLOGY, CLINICAL SIGNIFICANCE." Актуальні проблеми сучасної медицини: Вісник Української медичної стоматологічної академії 22, no. 3-4 (2022): 70–74. http://dx.doi.org/10.31718/2077-1096.22.3.4.70.

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This study reveals the clinical value of the parameter of the total power of the heart in assessing the functional state of the patient. The article is devoted to the expediency of using the method of short recording of heart rhythm variability in Objective Structured Clinical Examination.
 The purpose of the study was to investigate the total power in patients with noncommunicable diseases based on the results of recording a short record of heart rhythm variability as a promising parameter for assessing the functional state during an Objective Structured Clinical Examination.
 Mater
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Ostanin, S. A., V. I. Volkov #, V. P. Kulikov, and D. A. Kolosov. "Method for Compensation of Cardiac Rhythm Variability in Sphygmogram Analysis." Biomedical Engineering 42, no. 6 (2008): 280–83. http://dx.doi.org/10.1007/s10527-009-9066-z.

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Dissertations / Theses on the topic "Cardiac rhythm variability"

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Hammash, Muna Hassan. "CARDIAC RHYTHM DURING MECHANICAL VENTILATION AND WEANING FROM VENTILATION." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/56.

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The transition from mechanical ventilation (MV) to spontaneous ventilation during weaning is associated with hemodynamic alterations and autonomic nervous system (ANS) alterations (reflected by heart rate variability [HRV]). Although cardiac dysrhythmias are an important manifestation of hemodynamic alterations, development of dysrhythmias during MV and weaning and subsequent impact on length of MV has received little attention. The purposes of this dissertation were to 1) evaluate the relationship of heart rate variability (HRV) during weaning to the development of cardiac dysrhythmias and 2)
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Negrao, Bianca Lee. "Autonomic correlates at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of sympathomimetic medication." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07072009-163036/.

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Coelho, Eliza Prodel. "Efeito agudo de uma sessão de exercício físico no controle autonômico cardíaco no ciclo circadiano." Universidade Federal de Juiz de Fora, 2012. https://repositorio.ufjf.br/jspui/handle/ufjf/1894.

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Мислінський, Віталій Сергійович, та Vitaliy Myslinskyi. "Метод виявлення евентуальних ритмічних біосигналів для систем тривалого моніторингу". Master's thesis, 2019. http://elartu.tntu.edu.ua/handle/lib/29640.

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Проект виконано на кафедрі біотехнічних систем Тернопільського національного технічного університету імені Івана Пулюя<br>Дипломну роботу магістра присвячено розробленню методу виявлення евентуальних ритмічних біосигналів для систем тривалого моніторингу. Проведено верифікацію програмного забезпечення з метою створення методики метрологічних випробувань систем автоматичного виявлення та аналізу таких сигналів. Це уможливило коректне використання конструктивних методів спектрально-кореляційного аналізу при дослідженні варіабельності евентуальних ритмічних біосигналів.<br>The master's thesis is
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Сірук, Юрій Григорович, та Yuriy Siruk. "Метод аналізу ритмічних біосигналів у біотехнічних реабілітаційних системах ранньої діагностики". Master's thesis, 2019. http://elartu.tntu.edu.ua/handle/lib/29634.

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Проект виконано на кафедрі біотехнічних систем Тернопільського національного технічного університету імені Івана Пулюя<br>Дипломну роботу магістра присвячено розробленню методу аналізу ритмічних біосигналів у біотехнічних реабілітаційних системах ранньої діагностики. Удосконалено метод аналізу електрокардіосиґналу у біотехнічних реабілітаційних системах ранньої діагностики та оцінювання його характеристик з метою визначення інформативно-інваріантних ознак електрокардіосиґналу в рамках математичної моделі у вигляді періодично корельованого ВП. На базі аналізу характеристик математичної моделі
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Book chapters on the topic "Cardiac rhythm variability"

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Serhiyenko, Victoria, Marta Hotsko, Yuriy Markevich, et al. "Diabetic Cardiac Autonomic Neuropathy: Link between Heart Rate Variability, Violated Blood Pressure Pattern, and Pulse Wave Velocity." In Topics in Autonomic Nervous System [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112894.

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Abnormalities in heart rate (HR) variability (HRV) and blood pressure (BP) variability may increase the risk of cardiovascular diseases. A well-known risk factor for cardiovascular morbidity, such as arrhythmias, stroke, congestive heart failure, heart attacks, and sudden death syndrome, is cardiac autonomic neuropathy (CAN). It has been claimed that chronobiologically evaluating HRV and BP and optimizing timed treatment efficacy can significantly lower the risk of cardiac or stroke death. Physiological cardiovascular activities are under the control of the cardiac autonomic nervous system. Da
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Lisitsyna L., Lyamin A., and Skshidlevsky A. "Estimation of Student Functional State in Learning Management System by Heart Rate Variability Method." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-405-3-726.

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In this paper considered the estimate of the functional state of the student based on the activity of regulatory systems. Degree of tension of regulatory systems is evaluated based on mathematical analysis of cardiac rhythm &amp;ndash; the analysis of heart rate variability. During the student's work in the learning management system not only his answers are analyzed, but also the intension of the physiological system, determined by the method of heart rate variability analysis. Special software analyzes heart rate variability and transmits the results of analysis in the learning management sy
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Accardo Agostino, Cusenza Monica, De Felice Alberto, Fornasa Elisa, and D'Addio Giovanni. "Ultradian Rhythms During Day and Night in Normal and COPD Subjects." In Studies in Health Technology and Informatics. IOS Press, 2012. https://doi.org/10.3233/978-1-61499-101-4-1120.

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The analysis of heart rate variability (HRV) is a powerful tool in the study of the autonomic control of the heart. While circadian HRV rhythms have widely been characterized by traditional spectral measures, ultradian oscillations are not commonly investigated. In this study the identification of HRV ultradian rhythms is assigned to a quantitative measure characterizing the fractal-like behavior of the time series: the fractal dimension (FD). In order to assess ultradian regulation in Chronic Obstructive Pulmonary Disease (COPD) 24-h Holter ECG recordings of 52 COPD and 10 normal (healthy) su
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Rathore, Neha, Praveen Kumar Tyagi, Deepak Parashar, and Dheraj Agrawal. "Analogy of Wrist Pulse Signals in the Context of ECG Signals." In Advances in Bioinformatics and Biomedical Engineering. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-3947-0.ch007.

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Modern medical practices use different tools and procedures to observe pulse rate, heart rate variability, speed of pulse, blood pressure (BP), blood flowing rate in arteries, volume, etc. Years ago, in ancient medical practice like Ayurveda and traditional Chinese medicine (TMC), wrist pulse or radial pulse of the subject in consideration is checked to diagnose health conditions. Both wrist pulse diagnosis and ECG are non-invasive methods for assessing the health of a person. Wrist pulse is caused by cardiovascular activities, and thus, it can be correlated with the electrocardiography (ECG).
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Cappato, Riccardo. "Restoration of sinus rhythm: direct current cardioversion." In ESC CardioMed. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0504.

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First introduced in 1962, electrical cardioversion represents an effective and safe therapy to restore sinus rhythm in patients with atrial fibrillation (AF). Consistent with the original description by Lown, cardioversion is obtained through a ‘brief high-energy capacitor-stored electric shock … discharged across the intact chest of the lightly anesthetized patient’, electronically programmed to fall outside of the ‘vulnerable period’ of ventricular repolarization. Procedures performed according to the original description differed very little from those performed today, although a most remar
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Ahmed, Arfan, Sarah Aziz, Alaa Abd-Alrazaq, Uvais Qidwai, Faisal Farooq, and Javaid Sheikh. "Wearable AI Reveals the Impact of Intermittent Fasting on Stress Levels in School Children During Ramadan." In Studies in Health Technology and Informatics. IOS Press, 2023. http://dx.doi.org/10.3233/shti230486.

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Intermittent fasting has been practiced for centuries across many cultures globally. Recently many studies have reported intermittent fasting for its lifestyle benefits, the major shift in eating habits and patterns is associated with several changes in hormones and circadian rhythms. Whether there are accompanying changes in stress levels is not widely reported especially in school children. The objective of this study is to examine the impact of intermittent fasting during Ramadan on stress levels in school children as measured using wearable artificial intelligence (AI). Twenty-nine school
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Conference papers on the topic "Cardiac rhythm variability"

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Zhenxing Pan and Shinji Doi. "Variability of pacemaker rhythm in a detailed model of cardiac sinoatrial node cells." In 2010 IEEE Region 10 Conference (TENCON 2010). IEEE, 2010. http://dx.doi.org/10.1109/tencon.2010.5686665.

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Pan, Sheng-Yueh, Cheng-Han Tsai, Paul C. P. Chao, and Duc Huy Nguyen. "Sudden Cardiac Arrest Due to VT/VF Classification Based on Heart Rate Variability and Classification Model Hardware Design." In ASME 2023 32nd Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/isps2023-110673.

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Abstract Sudden cardiac arrest/death (SCA/SCD) is a disease that the heart cannot pump the blood effectively, so the blood flow loses rapidly. The patient may lose consciousness in an hour without appropriate treatment, and may take the patient’s life within minutes. Heart Rate Variability (HRV) is an electrocardiography (ECG) that uses QRS wave detection to calculate the R wave interval (R-R Interval, RRI), and uses the R wave interval to extract the time domain, frequency domain, and nonlinear characteristics of the heart rhythm. This work presents a neural network model algorithm based on h
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Dhananjay, B., and J. Sivaraman. "Prediction of cardiac rhythm based on heart rate variability features in sinus tachycardia conditions." In 2021 Seventh International conference on Bio Signals, Images, and Instrumentation (ICBSII). IEEE, 2021. http://dx.doi.org/10.1109/icbsii51839.2021.9445167.

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Zaidi, Syed Hassan, Imran Akhtar, Syed Imran Majeed, Tahir Zaidi, and Muhammad Saif Ullah Khalid. "Nonlinear Characterization of Heart Rate Variability in Normal Sinus Rhythm, Atrial Fibrillation and Congestive Heart Failure." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66836.

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This paper highlights the application of methods and techniques from nonlinear analysis to illustrate their far superior capability in revealing complex cardiac dynamics under various physiological and pathological states. The purpose is to augment conventional (time and frequency based) heart rate variability analysis, and to extract significant prognostic and clinically relevant information for risk stratification and improved diagnosis. In this work, several nonlinear indices are estimated for RR intervals based time series data acquired for Healthy Sinus Rhythm (HSR) and Congestive Heart F
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Scripnic, Vitalie, and Valeriu Cobet. "Beneficial effects of hypoxia on vascular reactivity and peculiarities of aging (clinical and experimental data)." In Universitas Europaea: Towards a Knowledge Based Society Through Europeanisation and Globalisation. Free International University of Moldova, 2025. https://doi.org/10.54481/uekbs2024.v2.38.

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This clinic-experimental study aimed the estimation of functional effects of adaptation to hypobaric hypoxia exerted on cardiovascular system. During the 14 days 28 volunteers have been exposed on mountain altitude of 2000m, considering as an optimal level of adaptation to hypoxia. The dynamics (2nd, 13th days of altitude stay and 1 month of basal conditions) of the heart rate, rhythm variability, activity of sympatho-/parasympathetic systems, rhythmogram, scatterogram, cardiac output, systolic and diastolic blood pressure as well as the total peripheral resistance was analyzed. Experimental s
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Malinin, Len, and Valery Naumov. "Application of Pulse Wave Analysis in a Personal Health Monitoring Device." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87033.

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Pulse wave (PW) is a physiological event, observable and measurable in the arterial system during blood circulation. One of characteristics that can be determined from a PW record is heart rate variability (HRV), an indication of beat-to-beat alterations in the heart rate. HRV is an accurate and reliable reflection of several physiological factors modulating the normal rhythm of the heart. HRV has escalated in use as an important diagnostic tool which indicates the balance between sympathetic and parasympathetic branches of the autonomous nervous system (ANS) and the synchronization between th
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