Log in

Relevant bibliographies by topics / Variability of heart rhythm / Journal articles

To see the other types of publications on this topic, follow the link: Variability of heart rhythm.

Journal articles on the topic 'Variability of heart rhythm'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Variability of heart rhythm.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wang, Hui-Min, and Sheng-Chieh Huang. "Musical Rhythms Affect Heart Rate Variability: Algorithm and Models." Advances in Electrical Engineering 2014 (September 17, 2014): 1–14. http://dx.doi.org/10.1155/2014/851796.

Full text

Abstract:

There were a lot of psychological music experiments and models but there were few psychological rhythm experiments and models. There were a lot of physiological music experiments but there were few physiological music models. There were few physiological rhythm experiments but there was no physiological rhythm model. We proposed a physiological rhythm model to fill this gap. Twenty-two participants, 4 drum loops as stimuli, and electrocardiogram (ECG) were employed in this work. We designed an algorithm to map tempo, complexity, and energy into two heart rate variability (HRV) measures, the st

APA, Harvard, Vancouver, ISO, and other styles

2

Loboda, O. M., I. O. Dudar, and Y. I. Gonchar. "HEART RATE VARIABILITY IN HEMODIALYSIS PATIENTS." Ukrainian Journal of Nephrology and Dialysis, no. 2(38) (December 12, 2017): 93–99. http://dx.doi.org/10.31450/ukrjnd.2(38).2013.07.

Full text

Abstract:

There are a small number of works that have studied heart rhythm variability parameters in patients treated with hemodialysis. Aim. To investigate the peculiarities of heart rhythm variability parameters in patients treated with hemodialysis. Methods. The observational controlled study included 55 patients treated with hemodialysis, aged 24 to 75 years, including 29 men and 26 women. The control group consisted of 20 healthy individuals of comparable age and sex. Heart rhythm variability parameters were investigated in all patients. Results. In the study of heart rhythm varia

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

4

Khapaliuk, A. V., V. M. Podobed, A. T. Kuzmenko, and E. G. Slipchenko. "VARIABILITY OF THE HEART RHYTHM AT PATIENTS WITH THE METABOLIC SYNDROME." Health and Ecology Issues, no. 1 (March 28, 2005): 90–95. http://dx.doi.org/10.51523/2708-6011.2005-2-1-17.

Full text

Abstract:

Research of heart rhythm variability at patients with the metabolic syndrome is carried out. Communication between parameters of heart rhythm variability, psychological status and heart rhythm infringements on type extrasystoles is shown. The method of a course general magnetotherapy for correction of independent nervous system disbalance is offered.

APA, Harvard, Vancouver, ISO, and other styles

5

Teerlink, J. R., and J. P. Clozel. "Hemodynamic variability and circadian rhythm in rats with heart failure: role of locomotor activity." American Journal of Physiology-Heart and Circulatory Physiology 264, no. 6 (1993): H2111—H2118. http://dx.doi.org/10.1152/ajpheart.1993.264.6.h2111.

Full text

Abstract:

Heart rate variability is known to be decreased by heart failure; however, the influences of concomitant diseases, changes in activity level, evolution through time, and abnormalities in the circadian rhythm are unknown. This study evaluated the influence of these factors by assessing hemodynamic variability in rats with heart failure (n = 8) and sham-operated controls (n = 8) through telemetric monitoring of heart rate, blood pressure, and locomotor activity for 8 wk. Hemodynamic variability was assessed by the standard deviation as well as hourly standard deviations and coefficients of varia

APA, Harvard, Vancouver, ISO, and other styles

6

Alejnikova, T. V. "HEART RATE VARIABILITY (literature review)." Health and Ecology Issues, no. 1 (March 28, 2012): 17–23. http://dx.doi.org/10.51523/2708-6011.2012-9-1-3.

Full text

Abstract:

The set of works is devoted studying of heart rate variability (HRV). Article represents the literature review on the given theme. In it modern representations about heart rate variability as a method estimating a condition of mechanisms of regulation of physiological functions of a human body are stated, classical methods of the analysis and possibility of clinical application are considered. The heart rhythm is the indicator of the deviations arising in vegetative nervous system, and change of a heart rhythm - the earliest prognostic sign of many diseases. In clinical practice analysis of he

APA, Harvard, Vancouver, ISO, and other styles

7

Guziy, O.V., and A.P. Romanchuk. "[DYNAMICS OF VARIABILITY CARDIORESPIRATORY SYSTEM UNDER THE INFLUENCE OF THE TRAINING LOAD]." Medichna reabіlіtacіya, kurortologіya, fіzіoterapіya [Medical Rehabilitation, Balneology, Physiotherapy] 2015, no. 1 (2015): 35–40. https://doi.org/10.5281/zenodo.20073.

Full text

Abstract:

According to the investigation with using spiroarteriocardiorhythmography it has been found study found that under the influence o f the training load in sportsmen, engaged o f water polo, significantly change indexes o f variability heart rhythm, SBP, DBP and spontaneous breathing. It has been shown that in the post-exercise period the moderate and expressed decrease o f TP heart rate (in 70.9 % o f sportsmen), minor changes in TPSBP and a moderate increase in TPDBP. This occurs against the background o f moderate and expressed increase (in 71 % o f spotsmen) TPbr. Dynamics o f variability in

APA, Harvard, Vancouver, ISO, and other styles

8

Massin, M. M. "Circadian rhythm of heart rate and heart rate variability." Archives of Disease in Childhood 83, no. 2 (2000): 179–82. http://dx.doi.org/10.1136/adc.83.2.179.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Logvinenko, A., L. Mishchenko, E. Kupchynska, et al. "RESISTANT HYPERTENSION AND VARIABILITY OF HEART RHYTHM." Journal of Hypertension 37 (July 2019): e112. http://dx.doi.org/10.1097/01.hjh.0000571456.20629.3d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Sammito, Stefan, Wiebke Sammito, and Irina Böckelmann. "The circadian rhythm of heart rate variability." Biological Rhythm Research 47, no. 5 (2016): 717–30. http://dx.doi.org/10.1080/09291016.2016.1183887.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

REVENCO, Ninel, Livia BOGONOVSCHI, Angela CRACEA, and Lucia MAZUR-NICORICI. "HEART RHYTHM VARIABILITY IN JUVENILE IDIOPATHIC ARTHRITIS." Archives of the Balkan Medical Union 59, no. 1 (2024): 36–43. http://dx.doi.org/10.31688/abmu.2024.59.1.05.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Bashkireva, Tatiana, Anastasia Bashkireva, Sergey Chibisov, Alexander Severin, Alexander Morozov, and Nadezhda Fateeva. "Assessment of driver biorhythms as a factor of labor safety." E3S Web of Conferences 164 (2020): 03029. http://dx.doi.org/10.1051/e3sconf/202016403029.

Full text

Abstract:

The paper provides a biorhythmological assessment of the health of a driver’s team in conditions of joint activity in terms of heart rate variability. Measurements were taken during the working day using Holter monitoring in AnnaFlash2000 software and statistical processing ISCIM6. The cardiogram of the heart was recorded during the working day from 8.00 to 18.00 hours. It was revealed that the rhythmic processes of acrophase and heart rate bathyphase, which testify to the leading role of hypoxia, hypercapnia and desynchronosis of ultradian rhythms, influence the joint professional activity of

APA, Harvard, Vancouver, ISO, and other styles

13

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

14

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

15

Alexeeva, L. L., N. V. Protopopova, and I. B. Fatkullina. "Heart rate variability in pregnant women with arterial hypertension." "Arterial’naya Gipertenziya" ("Arterial Hypertension") 17, no. 4 (2011): 366–71. http://dx.doi.org/10.18705/1607-419x-2011-17-4-366-371.

Full text

Abstract:

Objective. To study heart rhythm variability (HRV) in ethnic groups of pregnant women with and without arterial hypertension during all gestation period. Design and methods. 100 pregnant Russian and Buryat women with arterial hypertension formed the main group. The control group included 100 healthy pregnant women with a normal current of pregnancy, without arterial hypertensions. All subjects underwent Holter ECG monitoring («Incart», «Kardiotechnika-04-BP-3», Russia). Results. There is a significant decrease in time parameters of rhythm variability n pregnant Buryat women with arterial hyper

APA, Harvard, Vancouver, ISO, and other styles

16

Atanaskovic, Marko, Marko Nemet, Borislav Tapavicki, Milica Vasilic, Ivona Stanic-Hadzalic, and Enis Garipi. "Effects of circadian rhythm and daily physical activity on short-term heart rate variability in young healthy adults: A pilot study." Medical review 75, no. 9-10 (2022): 295–99. http://dx.doi.org/10.2298/mpns2210295a.

Full text

Abstract:

Introduction. Heart rate variability is the leading non-invasive method used for assessing the activity of the autonomic nervous system. Investigation of the changes in the autonomic nervous system activity under the influence of circadian rhythm and daily physical activity can be beneficial to exercise at the best time of the day and at regular time intervals. Furthermore, it can be used to determine the optimal level of total daily physical activity. This study aimed to demonstrate the effects of circadian rhythm and daily physical activity on the autonomic nervous system at rest through sho

APA, Harvard, Vancouver, ISO, and other styles

17

CONSTANT, Isabelle, Elizabeth VILLAIN, Dominique LAUDE, Arlette GIRARD, Isabelle MURAT, and Jean-Luc ELGHOZI. "Heart rate control of blood pressure variability in children: a study in subjects with fixed ventricular pacemaker rhythm." Clinical Science 95, no. 1 (1998): 33–42. http://dx.doi.org/10.1042/cs0950033.

Full text

Abstract:

1.To investigate the influence of heart rate variability on blood pressure variability, short-term variability in heart rate and blood pressure was studied in 10 children with fixed ventricular pacemaker rhythm (80 beats/min). Ten healthy children, in sinus rhythm, served as a reference population. 2.Arterial blood pressure and heart rate were measured continuously using a finger arterial device and an ECG respectively. Power spectra for heart rate and blood pressure (systolic and diastolic) were calculated in both supine and orthostatic positions. In addition, acute changes in blood pressure

APA, Harvard, Vancouver, ISO, and other styles

18

Khudyakova, Ludmila, Alla Bagatenkova, and Dmitrii Kulakhmetov. "SPECTRAL METHOD OF ANALYSIS OF HEART RHYTHM VARIABILITY." Bulletin of Kyiv Polytechnic Institute. Series Instrument Making, no. 55(1) (June 29, 2018): 138–44. http://dx.doi.org/10.20535/1970.55(1).2018.135838.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Freitas, João, Pedro Lago, Jorge Puig, Mário J. Carvalho, Ovídio Costa, and A. Falcão de Freitas. "Circadian heart rate variability rhythm in shift workers." Journal of Electrocardiology 30, no. 1 (1997): 39–44. http://dx.doi.org/10.1016/s0022-0736(97)80033-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Udachkina, E. V., D. S. Novikova, T. V. Popkova, and E. L. Nasonov. "SIGNIFICANCE OF HEART RHYTHM VARIABILITY IN RHEUMATOID ARTHRITIS." Rheumatology Science and Practice 53, no. 6 (2015): 646–52. http://dx.doi.org/10.14412/1995-4484-2015-646-652.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Mukhina, I. V., A. V. Dvornikov, and N. A. Kamaidanov. "Variability of the rhythm of isolated rat heart." Bulletin of Experimental Biology and Medicine 129, no. 5 (2000): 417–19. http://dx.doi.org/10.1007/bf02439788.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Kaladze, Nikolay N., and A. Yuschenko. "HEART RHYTHM VARIABILITY IN CHILDREN WITH VENTRICULAR SEPTAL DEFECT." Tavricheskiy Mediko-Biologicheskiy Vestnik 23, no. 3 (2022): 28–33. http://dx.doi.org/10.29039/2070-8092-2020-23-3-28-33.

Full text

Abstract:

The aim of the study was to assess heart rate variability in children with a ventricular septal defect (VSD). Material and methods: Holter monitoring was performed in patients with ventricular septal defect from 3 to 18 years of age with an assessment of the temporal and spectral parameters of heart rate variability. Conclusion: in children with VSD, a decrease in the parameters of the temporal analysis of heart rate variability compared with healthy peers (p <0.05) was observed, more pronounced in patients with operative correction of the defect, as well as an increase in the low-frequency

APA, Harvard, Vancouver, ISO, and other styles

23

Ippolitova, T., M. Naumov, E. Stepura, N. Naumov, and S. Kuznetsov. "Dynamics of electrophysiological indicators of HRV in cattle." Genetics and breeding of animals, no. 1 (May 18, 2023): 45–51. http://dx.doi.org/10.31043/2410-2733-2023-1-45-51.

Full text

Abstract:

Purpose: to establish electrophysiological parameters of the teeth of electrocardiograms and analyze them in animals with different vegetative status.Materials and methods. The removal of electrocardiograms from the Jersey breed cows was carried out according to the methodology of M.P. Roshchevsky, 3-3.5 hours before eating. The ECG received during the study was subjected to mathematical processing using the Conan -4.5 laboratory. The studied animals were kept on the livestock complex with a stall year -round animal content system.Results. In the cows of the Jersey breed, during the study, the

APA, Harvard, Vancouver, ISO, and other styles

24

Grigoricheva, E. A., and I. Y. Melnikov. "HEART RATE VARIABILITY AND ENDOTHELIAL FUNCTION IN SUBJECTS WITH HYPERTENSION AND ITS ASSOCIATION WITH CORONARY HEART DISEASE AND TYPE 2 DIABETES MELLITUS." "Arterial’naya Gipertenziya" ("Arterial Hypertension") 19, no. 2 (2013): 178–83. http://dx.doi.org/10.18705/1607-419x-2013-19-2-178-183.

Full text

Abstract:

and their relationship to nitric oxide production by endothelium.Design and methods.The study involved 141 patients with hypertension, including isolated hypertension, and associated with coronary heart disease and type 2 diabetes mellitus. Methods of investigation included the evaluation of clinical and conventional instrumentation and laboratory parameters with the additional study of heart rate variability. To assess endothelial function we determined the level of the final stable metabolites of nitric oxide: nitrite and nitrate anions (NO2 - and NO3 -) in blood plasma. Results and conclusi

APA, Harvard, Vancouver, ISO, and other styles

25

Zaiats, A., and T. Ippolitova. "Heart rate variability in Doberman." Genetics and breeding of animals, no. 1 (March 25, 2022): 25–31. http://dx.doi.org/10.31043/2410-2733-2022-1-25-31.

Full text

Abstract:

Purposes: to study the daily rhythms of the heart rate in 20 healthy Doberman dogs; obtaining reference values of time indicators of heart rate variability; study and determination of the type, identification of the predominance of the electrocardiological syndrome in this group of animals.Materials and methods. Due to the high prevalence of the disease: dilated cardiomyopathy (DCM) in Dobermans and a high risk of sudden death associated with the development of ventricular tachycardia, we conducted a study of heart rate variability in 20 clinically healthy Doberman dogs in order to study the e

APA, Harvard, Vancouver, ISO, and other styles

26

Buriak, O. H., and Yu M. Nechytailo. "Indicators of heart rate variability in children with acute bronchopulmonary diseases." Modern pediatrics. Ukraine, no. 3(139) (April 28, 2024): 27–31. http://dx.doi.org/10.15574/sp.2024.139.27.

Full text

Abstract:

Holter electrocardiogram (ECG) monitoring is a modern method for diagnosing of the cardiovascular system state and allows for a deeper study of the risks of comorbidity on its part in respiratory diseases. Among a significant number of indicators of the method, heart rate variability stands out as a marker of the balance between the activity of the sympathetic and parasympathetic parts of the autonomic nervous system. In children with acute respiratory diseases, it is important and poorly studied assessment of the autonomic balance and the degree of influence of this pathology on the autonomic

APA, Harvard, Vancouver, ISO, and other styles

27

Vuksanovic, Vesna, and Vera Gal. "Analysis of heart rhythm variability by linear and non-linear dynamics methods." Vojnosanitetski pregled 62, no. 9 (2005): 621–27. http://dx.doi.org/10.2298/vsp0509621v.

Full text

Abstract:

Introduction. Spectral analysis of heart rhythm variability is a noninvasive method to study cardiovascular autonomic control. Nonlinear methods of analysis of heart rhythm variability may provide an additional information on properties of RR interval dynamics, which cannot be revealed by linear methods. The aim of this study was to investigate and to compare some parameters of deterministic chaos, tractal and spectral properties of heart rhythm variability in healthy subjects. Methods. Sixty healthy subjects, who participated in this study, were divided in four different age groups: children

APA, Harvard, Vancouver, ISO, and other styles

28

Martynenko, A. V. "Robust correlation dimension estimator for heart rate variability." Klinical Informatics and Telemedicine 15, no. 16 (2020): 62–68. http://dx.doi.org/10.31071/kit2020.16.06.

Full text

Abstract:

Introduction. Non-linear methods of analysis have found widespread use in the Heart Rate Variability (HRV) technology, when the long-term HRV records are available. Using one of the effective nonlinear methods of analysis of HRV correlation dimension D2 for the standard 5-min HRV records is suppressed by unsatisfactory accuracy of available methods in case of short records (usually, doctors have about 500 RRs during standard 5-min HRV record), as well as complexity and ambiguity of choosing additional parameters for known methods of calculating D2. The purpose of the work. Building a robust es

APA, Harvard, Vancouver, ISO, and other styles

29

T, Vyasaraj, and Veena N. Hegde. "Heart Rate Variability-A Review." Journal of University of Shanghai for Science and Technology 23, no. 07 (2021): 1241–46. http://dx.doi.org/10.51201/jusst/21/07296.

Full text

Abstract:

Information about the health can be obtained by measuring various physiological parameters such as Heart Rate, Heart Rate Variability (HRV), Nerve conduction, brain activity, blood oxygen saturation level etc. The useful information resulted from the systematic analysis of these physical parameters are helpful for clinicians to make better decisions. HRV reflects the state of the Autonomic Nervous System (ANS) defined as the variance in the time between successive heartbeats expressed in milliseconds. The various factors that affects HRV are diet, nutrition, age, alcohol, gender, cardiac rhyth

APA, Harvard, Vancouver, ISO, and other styles

30

Saitou, Yasuhiro. "Circadian rhythm of heart rate variability in dilated cardiomyopathy." Japanese Journal of Electrocardiology 19, no. 6 (1999): 694–700. http://dx.doi.org/10.5105/jse.19.694.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Korobeynikov, Georgiy, Yevgeniy Imas, Lesia Korobeynikova, et al. "Body Composition and Heart Rhythm Variability in Elite Wrestlers." Sport Mont 19, S2 (2021): 147–51. http://dx.doi.org/10.26773/smj.210925.

Full text

Abstract:

The aim of the research was to study the body composition and heart rhythm variability in elite wrestlers. In the study we used: Omron BF511 body composition monitor, we obtained and analyzed data on the body composition of 8 highly qualified athletes, members of the Ukrainian national team in Greco-Roman wrestling in 5 weight cate- gories. 67 kg - 1 person, 72 kg - 1 person, 77 kg - 3 people, 87 kg - 2 people and 97 kg - 1 person. Vegetative regula- tion was assessed according to the indicators of statistical and spectral analysis of heart rhythm variability. For this purpose, we used a porta

APA, Harvard, Vancouver, ISO, and other styles

32

Nann, Marius, David Haslacher, Annalisa Colucci, Bjoern Eskofier, Vinzenz von Tscharner, and Surjo R. Soekadar. "Heart rate variability predicts decline in sensorimotor rhythm control." Journal of Neural Engineering 18, no. 4 (2021): 0460b5. http://dx.doi.org/10.1088/1741-2552/ac1177.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Singh, R. B., A. Weydahl, K. Otsuka, et al. "Can nutrition influence circadian rhythm and heart rate variability?" Biomedicine & Pharmacotherapy 55 (November 2000): s115—s124. http://dx.doi.org/10.1016/s0753-3322(01)90016-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Podobed, V. M., and A. T. Kuzmenko. "THERAPEUTIC TARGETS OF METABOLIC SYNDROME TREATMENT." Health and Ecology Issues, no. 2 (June 28, 2009): 38–42. http://dx.doi.org/10.51523/2708-6011.2009-6-2-8.

Full text

Abstract:

One of predisposition factors for patients with a metabolic syndrome to development of cardiovascular accidents is activation of sympathoadrenal system. Alarm and depression act as an independent factor causing the vegetative disbalance. Displays of regulatory activity of all links of the nervous system are reflected in indicators of variability of the heart rhythm. If patients with a metabolic syndrome, and also hypersympathicotonia according to variability of a heart rhythm have alarm and depression, this is considered to be additional therapeutic targets for treatment being conducted.

APA, Harvard, Vancouver, ISO, and other styles

35

CONSTANT, Isabelle, Dominique LAUDE, Isabelle MURAT, and Jean-Luc ELGHOZI. "Pulse rate variability is not a surrogate for heart rate variability." Clinical Science 97, no. 4 (1999): 391–97. http://dx.doi.org/10.1042/cs0970391.

Full text

Abstract:

To investigate the differences between heart rate (HR) variability and pulse rate (PR) variability, short-term variability of finger pulse wave and ECG signals were studied in 10 children with a fixed ventricular pacemaker rhythm (80 beats/min). Ten healthy children in sinus rhythm served as a reference population. Distal PR and HR were measured continuously using a Finapres device and an ECG respectively. Power spectra for HR and PR were calculated in both the supine and orthostatic positions. In paced subjects, PR spectra exhibited the characteristic respiratory peak, although the HR spectra

APA, Harvard, Vancouver, ISO, and other styles

36

Sibrecht, Greta, Tomasz Krauze, Renata Dobkowska, Andrzej Wykrętowicz, Jarosław Piskorski, and Przemysław Guzik. "Rationale, design and methods planned in a prospective study concerning the circadian rhythm of heart rate asymmetry in healthy subjects." Journal of Medical Science 89, no. 4 (2020): e492. http://dx.doi.org/10.20883/medical.e492.

Full text

Abstract:

Heart rate asymmetry (HRA) is a physiological phenomenon caused by an unequal (asymmetric) contribution of heart rate decelerations and accelerations to the variability (variance) and microstructure of the heart rhythm of sinus origin. HRA has been studied in healthy people and patients with heart failure, diabetes, obstructive sleep apnoea, ischaemic heart disease, and survivors of myocardial infarction. HRA is a particular form of the heart rate variability (HRV) phenomenon related to the changes in the duration of cardiac cycles of sinus origin. HRV is influenced by physical activity, age,

APA, Harvard, Vancouver, ISO, and other styles

37

Gospodinova, Evgeniya. "Application of Methods from Nonlinear Dynamics for Heart Rate Variability Analysis." Innovative STEM Education 2, no. 1 (2020): 28–35. http://dx.doi.org/10.55630/stem.2020.0204.

Full text

Abstract:

The article presents the results of the study of the nonlinear properties of the dynamics of the intervals between heartbeats obtained from digital ECG signals of healthy subjects, patients with arrhythmia and patients with heart failure. Data analysis was performed by applying the following two methods of nonlinear dynamics: Recurrence plot and Poincaré plot, comparing with the linear histogram method. The visual evaluation of the repeating diagrams constructed by the Recurrence plot allows obtaining quick information about the behaviour of the studied process. The reduction of the complexity

APA, Harvard, Vancouver, ISO, and other styles

38

Mills, N. L., A. E. Finlayson, M. C. Gonzalez, et al. "Diesel exhaust inhalation does not affect heart rhythm or heart rate variability." Heart 97, no. 7 (2010): 544–50. http://dx.doi.org/10.1136/hrt.2010.199042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Soloviova, H. O., S. M. Tsvirenko, M. M. Fastovets, L. A. Zhuk, and K. O. Rud. "HEART RATE VARIABILITY IN THE ASSESSMENT OF ADAPTIVE CAPACITY IN NEWBORNS WITH PERINATAL INJURY OF CENTRAL NERVOUS SYSTEM." Актуальні проблеми сучасної медицини: Вісник Української медичної стоматологічної академії 24, no. 4 (2024): 106–10. https://doi.org/10.31718/2077-1096.24.4.106.

Full text

Abstract:

Relevance. The neurohumoral mechanisms regulating heart rhythm in newborns are a focal point of research in perinatal cardiology. This emphasis arises from the fact that heart rhythm serves as a key indicator of the functional interplay within the cardiovascular system and the overall physiological state of a newborn, acting as a primary marker of autonomic nervous system activity. Aim: To examine the characteristics of autonomic heart rhythm regulation in newborns with perinatal injuries of central nervous system through daily electrocardiogram monitoring. Subjects and methods. The study incl

APA, Harvard, Vancouver, ISO, and other styles

40

Janßen, Jan-Dirk, and Thomas Schanze. "Analysis and classification of ECG-waves and rhythms using circular statistics and vector strength." Current Directions in Biomedical Engineering 3, no. 2 (2017): 91–94. http://dx.doi.org/10.1515/cdbme-2017-0020.

Full text

Abstract:

AbstractThe most common way to analyse heart rhythm is to calculate the RR-interval and the heart rate variability. For further evaluation, descriptive statistics are often used. Here we introduce a new and more natural heart rhythm analysis tool that is based on circular statistics and vector strength. Vector strength is a tool to measure the periodicity or lack of periodicity of a signal. We divide the signal into non-overlapping window segments and project the detected R-waves around the unit circle using the complex exponential function and the median RR-interval. In addition, we calculate

APA, Harvard, Vancouver, ISO, and other styles

41

Dr., Mehwish Irshad Dr. Samreen Bugti Dr. Humaira Bugti. "VARIATION IN HEART RATE AMONG HEALTHY INDIVIDUALS." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 11 (2018): 11959–63. https://doi.org/10.5281/zenodo.1484448.

Full text

Abstract:

<em>Variability of heart rate is considered as an indicator of autonomic status. Very little work has been done on heart rate variability in normal healthy volunteers<strong>.</strong></em> <strong><em>Objective: </em></strong><em>Our aim was to increase the reference values of heart rate variability in our healthy population.</em> <strong><em>Study Design: </em></strong><em>A non- interventional descriptive study.</em> <strong><em>Place and Duration: </em></strong><em>In the Physiology Department of Services Hospital Lahore for one year duration from March 2016 to March 2017.</em> <strong><em

APA, Harvard, Vancouver, ISO, and other styles

42

Lin, Jiahao. "Wearable Emotion Recognition Technology Based on Heart Rate Variability and EEG Rhythm." Transactions on Computer Science and Intelligent Systems Research 5 (August 12, 2024): 892–98. http://dx.doi.org/10.62051/g4rwwf66.

Full text

Abstract:

This paper explores the utilization of physiological signals, including heart rate variability (HRV) and electroencephalography (EEG), in emotion recognition through wearable devices. Heart Rate Variability (HRV) is closely linked to emotional arousal. HRV can detect subtle changes in heart rate patterns, which are indicative of different emotional states. By analyzing these patterns, researchers can identify and differentiate between various emotions someone may be experiencing. The integration of heart sound signals alongside traditional ECG signals presents an innovative approach, enhancing

APA, Harvard, Vancouver, ISO, and other styles

43

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

44

Cameron, Daniel, Keith Potter, Geraint Wiggins, and Marcus Pearce. "Perception of Rhythmic Similarity is Asymmetrical, and Is Influenced by Musical Training, Expressive Performance, and Musical Context." Timing & Time Perception 5, no. 3-4 (2017): 211–27. http://dx.doi.org/10.1163/22134468-00002085.

Full text

Abstract:

Rhythm is an essential part of the structure, behaviour, and aesthetics of music. However, the cognitive processing that underlies the perception of musical rhythm is not fully understood. In this study, we tested whether rhythm perception is influenced by three factors: musical training, the presence of expressive performance cues in human-performed music, and the broader musical context. We compared musicians and nonmusicians’ similarity ratings for pairs of rhythms taken from Steve Reich’s Clapping Music. The rhythms were heard both in isolation and in musical context and both with and with

APA, Harvard, Vancouver, ISO, and other styles

45

Sharhaeva, N. V. "DIAGNOSTICS OF FETUS’ THREATENING CONDITIONS DURING PREGNANCY AND IN DELIVERY." Health and Ecology Issues, no. 3 (September 28, 2005): 103–12. http://dx.doi.org/10.51523/2708-6011.2005-2-3-20.

Full text

Abstract:

Cardiotocography is one of the basic methods of diagnostics of a fetus’ threatening conditions during pregnancy and in delivery. Supervision with the cardiomonitor allows to reveal in due time infringements of a fetus’ heart rhythm, to choose optimal obstetrician tactics , to decrease rate of perinatal disease and death. At research of a fetus’ heart rhythm on ball system estimate basal rhythm of heart beating frequency, its variability, character of slow acceleration (accelerations) and deceleration (decelerations) an heartbeat which compare with contractive activity of a uterus or motion act

APA, Harvard, Vancouver, ISO, and other styles

46

Sariyya Qarayeva, Yelena Rahimova, Sariyya Qarayeva, Yelena Rahimova. "RESEARCH ON THE VARIATIONAL METHOD OF PROCESSING SIGNAL VARIABILITY OF HEART RHYTHM." PIRETC-Proceeding of The International Research Education & Training Centre 30, no. 01 (2024): 27–34. http://dx.doi.org/10.36962/piretc30012024-27.

Full text

Abstract:

This article consists of an introductory section, a materials and methods section, an analysis focusing on heart rate variability, a conclusion, and a reference list. This article discusses the variational method of processing heart rate variability signals for diagnosing the state of the cardiovascular system. The variational pulsemetry method is based on the analysis of the statistical distribution of R-R intervals, which are considered as random variables. The analysis of heart rate variability is provided, along with examples of rhythmograms, histograms, and scattergrams. By analyzing the

APA, Harvard, Vancouver, ISO, and other styles

47

Kozhomberdiev, B., and Ch Makimbetova. "HEART RATE VARIABILITY AS A REFLECTION OF THE TONE OF THE VEGETATIVE NERVOUS SYSTEM OF SURGERY OF TUMORS OF THE REPRODUCTIVE SYSTEM OF WOMEN." National Association of Scientists 2, no. 71 (2021): 6–9. http://dx.doi.org/10.31618/nas.2413-5291.2021.2.71.476.

Full text

Abstract:

The article presents the results of a study of heart rate variability at women after hysterectomy with appendages. There were showed the relationship of the sympathetic and parasympathetic system in the regulation of the heart rhythm.

APA, Harvard, Vancouver, ISO, and other styles

48

Maksumova, N. V., V. V. Fattakhov, and M. N. Nasrullaev. "Heart rate variability in the assessment of «benefit/risk» of infusion therapy." Kazan medical journal 93, no. 2 (2012): 371–73. http://dx.doi.org/10.17816/kmj2341.

Full text

Abstract:

In order to assess the correctness of choice of medicinal treatment of a disease, safety of intravenous transfusions, the effectiveness of treatment Chosen was a method for the analysis of heart rate variability using a complex of diagnostic functional changes in the cardiac rhythm, «Kardioanalizator “Expert 01”» (СJSC «NPO “Markiz”», Saint-Petersburg). In patients with hypersympathicotonia marked was a tendency for rigidity of cariac rhythm, overstress condition, depletion and collapse of the adaptive systems. Treatment of such patients, including infusion therapy, should be done in a hospita

APA, Harvard, Vancouver, ISO, and other styles

49

Shulkina, S. G., E. N. Smirnova, E. A. Laurent, et al. "Correlation between adipocytokine profile and heart rate variability in patients with obesity." Perm Medical Journal 37, no. 3 (2020): 12–17. http://dx.doi.org/10.17816/pmj37312-17.

Full text

Abstract:

Objective. The high prevalence of obesity in employable population dictates the necessity for preclinical diagnosis of diseases associated with it, including the study of the autonomic regulation of heart rhythm. The objective was to study the correlations between the adipocytokine profile and heart rate variability in patients with obesity. Materials and methods. 300 persons were examined, the average age was 46.2 6.4 years; Group 1 was metabolically unhealthy obesity phenotype (MUHOP) 90 patients; group 2 was obesity without metabolic disorders [Ob(+)MD(-)] (MHOP) 50 persons; the contr

APA, Harvard, Vancouver, ISO, and other styles

50

Karpova, I. S., and N. A. Manak. "CLINICAL ASPECTS OF MYOCARDIAL ELECTRICAL INSTABILITY IN CHRONIC IHD." Eurasian heart journal, no. 2 (June 30, 2015): 37–40. http://dx.doi.org/10.38109/2225-1685-2015-2-37-40.

Full text

Abstract:

The aim of the study was to assess associations between myocardial electrical instability estimates (heart rhythm turbulence, T- wave microvolt alternation, QT dispersion) and structural and functional changes in heart in the settings of IHD with ventricular premature beats. Eighty two subjects with exertional angina (NYHA FC II-III) and Lown Grade 3-5 class ventricular arrhythmia were examined. Controls included 28 pts. with chronic IHD with no arrhythmias. Heart rhythm turbulence, T- wave alternation and QT dispersion were defined based on 12-lead ECG data with record duration of 5 minutes u

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!