scholarly journals Stress before exams as a risk factor causing functional disorders in the cardiovascular system in students with different metabolic status

2020 ◽  
pp. 147-155
Author(s):  
V.A. Belyaeva ◽  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Regulatory System ◽  
Total Activity ◽  
Metabolic Status ◽  
Regulation System ◽  
Vegetative Nervous System ◽  
The North ◽  
Regulatory Systems

Students who attend a medical HEE often face strain in their adaptation mechanisms when preparing for exams; it can create substantial preconditions for functional deregulation in body systems. The articles outlines some results obtained via examining heart rate variability (HRV) in students of the 2nd and the 3rd year attending the North Ossetia State Medical Academy who had different metabolic status in a period prior to exams. Our research goal was to assess the state of the vegetative nervous system and regulatory systems in students with different metabolic status (BMI< 25; BMI=25–29.99; BMI=30–34.99.) who had to face excess stress during preparation to exams. Heart rate intervals were registered during five minutes in an examined person being at rest. HRV parameters were analyzed in time and frequency domains. We revealed that medical students had elevated activity of the sympathetic section in their vegetative nervous system (VNS) during a period prior to exams; in particular, it was apparent for the regulation system of the vasomotor center (PLF = 48.4%). Students’ bodies had apparent strain in their regulatory systems (SI=177.5 a.u.). Total activity of the regulatory system was significantly elevated (TP=2,293 msec2) due to central regulation levels. As students’ BMI grew, there was a decrease in activity of the parasympathetic component in vegetative regulation and heart rate management became more centralized (IC=3.2–4.5 a.u.). Students with Class 3 obesity had the maximum spectrum power of the superlow component in heart rate variability (PVLF=29.3%). HRV parameters analysis allows estimating whether adaptation processes in students’ bodies are adequate during preparation to exams; it can be done in screening mode and provides an opportunity to perform timely prevention activities.

scholarly journals Stress before exams as a risk factor causing functional disorders in the cardiovascular system in students with different metabolic status

2020 ◽  
pp. 147-155
Author(s):  
V.A. Belyaeva ◽  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Regulatory System ◽  
Total Activity ◽  
Metabolic Status ◽  
Regulation System ◽  
Vegetative Nervous System ◽  
The North ◽  
Regulatory Systems

Students who attend a medical HEE often face strain in their adaptation mechanisms when preparing for exams; it can create substantial preconditions for functional deregulation in body systems. The articles outlines some results obtained via examining heart rate variability (HRV) in students of the 2nd and the 3rd year attending the North Ossetia State Medical Academy who had different metabolic status in a period prior to exams. Our research goal was to assess the state of the vegetative nervous system and regulatory systems in students with different metabolic status (BMI< 25; BMI=25–29.99; BMI=30–34.99.) who had to face excess stress during preparation to exams. Heart rate intervals were registered during five minutes in an examined person being at rest. HRV parameters were analyzed in time and frequency domains. We revealed that medical students had elevated activity of the sympathetic section in their vegetative nervous system (VNS) during a period prior to exams; in particular, it was apparent for the regulation system of the vasomotor center (PLF = 48.4%). Students’ bodies had apparent strain in their regulatory systems (SI=177.5 a.u.). Total activity of the regulatory system was significantly elevated (TP=2,293 msec2) due to central regulation levels. As students’ BMI grew, there was a decrease in activity of the parasympathetic component in vegetative regulation and heart rate management became more centralized (IC=3.2–4.5 a.u.). Students with Class 3 obesity had the maximum spectrum power of the superlow component in heart rate variability (PVLF=29.3%). HRV parameters analysis allows estimating whether adaptation processes in students’ bodies are adequate during preparation to exams; it can be done in screening mode and provides an opportunity to perform timely prevention activities.

scholarly journals Heart Rate Variability and Electrodermal Activity as Noninvasive Indices of Sympathovagal Balance in Response to Stress

2013 ◽  
Vol 13 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Zuzana Visnovcova ◽  
A. Calkovska ◽  
I. Tonhajzerova
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Mental Stress ◽  
Electrodermal Activity ◽  
Regulatory System ◽  
Sympathovagal Balance ◽  
Autonomic Nervous ◽  
Response To Stress

Abstract The autonomic nervous system (ANS) is a principal regulatory system for maintaining homeostasis, adaptability and physiological flexibility of the organism at rest as well as in response to stress. In the aspect of autonomic regulatory inputs on the cardiovascular system, recent research is focused on the study of exaggerated/diminished cardiovascular reactivity in response to mental stress as a risk factor for health complications, e.g. hypertension. Thus, the analysis of biological signals reflecting a physiological shift in sympathovagal balance during stress in the manner of vagal withdrawal associated with sympathetic overactivity is important. The heart rate variability, i.e. “beat-to-beat” oscillations of heart rate around its mean value, reflects mainly complex neurocardiac parasympathetic control. The electrodermal activity could represent “antagonistic” sympathetic activity, the so-called “sympathetic arousal” in response to stress. The detailed study of the physiological parameters under various stressful stimuli and in recovery phase using traditional and novel mathematical analyses could reveal discrete alterations in sympathovagal balance. This article summarizes the importance of heart rate variability and electrodermal activity assessment as the potential noninvasive indices indicating autonomic nervous system activity in response to mental stress.

scholarly journals HEART RATE VARIABILITY AS A REFLECTION OF THE TONE OF THE VEGETATIVE NERVOUS SYSTEM OF SURGERY OF TUMORS OF THE REPRODUCTIVE SYSTEM OF WOMEN

2021 ◽  
Vol 2 (71) ◽  
pp. 6-9
Author(s):  
B. Kozhomberdiev ◽  
Ch. Makimbetova
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Reproductive System ◽  
Heart Rhythm ◽  
Vegetative Nervous System ◽  
Parasympathetic System ◽  
Relationship Of ◽  
The Relationship

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. 

PRELIMINARY STUDY OF THE HEART RATE VARIABILITY AS A INDICATOR OF THE INTERACTION BETWEEN THE GLYCAEMIA REGULATION SYSTEM AND THE AUTONOMOUS NERVOUS SYSTEM

2005 ◽  
Vol 38 (1) ◽  
pp. 178-183
Author(s):  
Pablo F. Viñas ◽  
Lázaro Gorostiaga Cánepa ◽  
Enrique Baeyens Lázaro ◽  
Javier. Perez Turiel ◽  
José R. Perán González
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Regulation System ◽  
Autonomous Nervous System ◽  
Preliminary Study

scholarly journals Evaluation of the vegetative dysfunction by means of the method of heart rate variability analysis during nontraumatic intracranial hemorrhages

2008 ◽  
Vol 7 (5-2) ◽  
pp. 385-390
Author(s):  
N. A. Sokolova ◽  
N. Ye. Ivanova ◽  
V. S. Panuntsev ◽  
L. V. Kozyreva
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Fluid Pressure ◽  
Heart Rate Variability Analysis ◽  
Intracranial Hemorrhages ◽  
Vegetative Nervous System ◽  
Variability Analysis ◽  
Metabolic Type ◽  
Method Of Evaluation

Оn the basis of the heart rate variability analysis in 41 patients during acute period of nontraumatic intracranial hemorrhages it was revealed that dynamics of the vegetative dysfunction rise was characterized by transition from reflex to humoral metabolic type of regulation. The reduction of reactivity of vegetative nervous system parasympathetic part during respiratory and active orthostatic test was noted. The method of evaluation of vegetative nervous system reactivity by means of heart rate variability analysis recorded before, during and after lumbar puncture with measure of cerebrospinal fluid pressure was worked out. It allows to evaluate the reactivity of suprasegmental centers (adequate, insufficient, exhaustion), raises accuracy of detection of adaptive organism resources with the detachment of the disease course variant and helps to reveal correlation of exertion extent of suprasegmental centers with hypertensive hydrocephalic syndrome.

scholarly journals Analysis of frequency ranges of heart rate variability and estimation errors of respiratory sinus arrhythmia in aging

2021 ◽  
Author(s):  
V. M. Bahilin
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Invasive Monitoring ◽  
Rr Intervals ◽  
Autonomic Nervous ◽  
Non Invasive ◽  
Spectral Estimates ◽  
Regulatory Systems

The clinical significance of heart rate variability (HRV) was assessed at the end of the last century, despite the fact that HRV studies have been conducted since the mid-19th century. In recent years, HRV has been increasingly used for non-invasive monitoring of the autonomic nervous system. However, the interpretation of HRV features is still not fully understood and widely discussed. It is known that HRV fluctuations are created by various regulatory systems of the body, which have different natural frequencies. The estimated HRV parameters are SDNN and RMSSD indicators – standard deviations of a number of RR-intervals and a number of first differences of RR-intervals, respectively. The purpose of the article was to calculate the power decrease with aging in different frequency ranges, analyze the errors of spectral estimates, and compare the spectral estimates of RSA with the values of RMSSD indicators. Simultaneous ECG and respiration records from the Fantasia Physio Bank database were used as initial data. For reference estimates, the powers in the range of respiration rate found from the records of respiration measurements are taken. It is shown that with age the power of the HF range decreases most rapidly, and the VLF range decreases most slowly. HF oscillation amplitudes are compared with RMSSD values. It is proposed to consider the RMSSD indicator as an assessment of the speed parameter of the regulatory system. Spectral methods are used to estimate the power of individual frequency ranges. For non-invasive monitoring of the autonomic nervous system, spectral estimates of the power of the LF and HF ranges are used. With aging, stress, and various diseases, the activity of regulatory systems decreases, but it remains unclear in which regulatory systems and to what extent violations occur.

scholarly journals Osteopathic techniques as a way to achieve the balance in the heart rate variability

2015 ◽  
pp. 29-36 ◽  
Author(s):  
N. . Orlova ◽  
E. . Shyiriaeva ◽  
N. . Yerofeev
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Human Health ◽  
Holistic Approach ◽  
Vegetative Nervous System ◽  
Treatment Methods ◽  
The Individual ◽  
Vegetative Status

Steopathic correction is one of the treatment methods, based on the individual and holistic approach to the recovery of human health. The analysis of the heart rate variability helps to evaluate the influence of osteopathic correction on the synergism and balance of the vegetative nervous system and permits to objectify the current changes of the vegetative status.

Efeito da manipulação vertebral sobre a modulação autonômica cardíaca

2016 ◽  
Vol 17 (5) ◽  
pp. 498
Author(s):  
Alyssa Conte Da Silva ◽  
Juliana Falcão Padilha ◽  
Jefferson Luiz Brum Marques ◽  
Cláudia Mirian De Godoy Marques
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Spinal Manipulation ◽  
Autonomic Modulation ◽  
Autonomic Nervous ◽  
Cardiac Autonomic Modulation

Introdução: Existem poucos estudos que evidenciam a manipulação vertebral relacionada à modulação autonômica cardíaca. Objetivo: Revisar a literatura sobre os efeitos da manipulação vertebral sobre a modulação autonômica cardíaca. Métodos: Foi realizada uma busca bibliográfica nas bases de dados da saúde Medline, Pubmed e Cinahl, no período correspondido entre setembro e novembro de 2014. Foram utilizados os descritores em inglês Spinal Manipulation, Cardiac Autonomic Modulation, Autonomic Nervous System, Heart Rate Variability, além de associações entre eles. Resultados: Foram encontrados 190 artigos, sendo excluídos 39 por serem repetidos, restando 151. Destes, 124 não se encaixaram nos critérios de inclusão e após leitura crítica e análise dos materiais foram selecionados 7 artigos. Grande parte dos estudos revelou que a manipulação da coluna, independente do segmento, demonstra alterações autonômicas, tanto em nível simpático quanto parassimpático. Conclusão: Existem diferentes metodologias para avaliação da modulação autonômica cardíaca, sendo a Variabilidade da Frequência cardíaca através do eletrocardiograma a mais utilizada. A manipulação vertebral exerceu influência, na maioria dos artigos, sobre a modulação autonômica cardíaca.Palavras-chave: manipulação da coluna, sistema nervoso autônomo, variabilidade da frequência cardíaca. 

Sign in / Sign up

Export Citation Format

Share Document