Heart Rate Variability Of Moscow Secondary Schoolboys Living In Different Environmental Conditions

The presented empirical study assesses the state of the cardiovascular system of Moscow schoolchildren living in different environmental conditions. 233 practically healthy schoolchildren (109 boys and 124 girls aged 11.4 to 12.6 years) took part in the comprehensive study of HRV and the state of adaptive processes when living in different ecological conditions of the capital megapolis. On the basis of different ecological and social conditions the schoolchildren were divided into 4 compared groups. The comparative analysis of the obtained HRV data of schoolchildren of different groups showed differences in the adaptation processes and in the indices of the wave activity of the sympathetic and parasympathetic departments of the ANS.

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Cardiac Parasympathetic Withdrawal and Sympathetic Activity: Effect of Heat Exposure on Heart Rate Variability

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18115934 ◽

2021 ◽

Vol 18 (11) ◽

pp. 5934

Author(s):

Oriol Abellán-Aynés ◽

Pedro Manonelles ◽

Fernando Alacid

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Environmental Conditions ◽

Sympathetic Activity ◽

Heat Exposure ◽

Repeated Measurements ◽

Control Group ◽

Poincaré Plot ◽

Activity Effect ◽

And Control

(1) Background: Research on heart rate variability has increased in recent years and the temperature has not been controlled in some studies assessing repeated measurements. This study aimed to analyze how heart rate variability may change based on environmental temperature during measurement depending on parasympathetic and sympathetic activity variations. (2) Methods: A total of 22 volunteers participated in this study divided into an experimental (n = 12) and control group (n = 10). Each participant was assessed randomly under two different environmental conditions for the experimental group (19 °C and 35 °C) and two identical environmental conditions for the control group (19 °C). During the procedure, heart rate variability measurements were carried out for 10 min. (3) Results: Significantly changes were observed for time and frequency domains as well as Poincaré plot variables after heat exposure (p < 0.05). These findings were not observed in the control group, whose conditions between measurements did not change. (4) Conclusions: The reduction of heart rate variability due to exposure to hot conditions appears to be produced mostly by a parasympathetic withdrawal rather than a sympathetic activation. Therefore, if consecutive measurements have to be carried out, these should always be done under the same temperature conditions.

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Indices of heart rate variability for estimation of adaptive processes and stress resistance in gastroenterology practice (using up-to-date technology of precise-diagnosis)

GASTROENTEROLOGY ◽

10.22141/2308-2097.54.2.2020.206230 ◽

2020 ◽

Vol 54 (2) ◽

pp. 113-123

Author(s):

Yu.M. Stepanov ◽

E.V. Zyhalo

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Stress Resistance ◽

Precise Diagnosis ◽

Adaptive Processes

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Assessment of the adaptive state of students based on the analysis of heart rate variability indicators

10.34014/mpphe.2021-150-153 ◽

2021 ◽

Author(s):

N.V. Mishchenko ◽

S.V. Lyalyakin ◽

L.A. Shirkin ◽

E.S. Knyazeva ◽

T.A. Trifonova

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Key Words ◽

The State ◽

Key Words Heart ◽

Key Words Heart Rate ◽

Regulatory Systems ◽

Young Students

In the course of the study, the adaptive state of VlSU students was assessed by temporal, spectral, cardiointervalographic and integral indicators of heart rate variability. The characteristic of the state of the regulatory systems of students is given. The obtained results can serve as a certain addition to the understanding of the peculiarities of the process of adaptation of young students in the conditions of studying at higher school. Key words: heart rate variability (HRV), students, adaptation, regulatory systems, sympathetic and parasympathetic influence.

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Anova-Based Method for Hurst Exponent Estimation of Heart Rate Variability Sequences

Information Technologies and Control ◽

10.1515/itc-2015-0006 ◽

2014 ◽

Vol 12 (1) ◽

pp. 9-14

Author(s):

G. Georgieva-Tsaneva ◽

M. Dimitrova

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Information Systems ◽

Comparative Analysis ◽

Hurst Exponent ◽

Medical Information ◽

Medical Data ◽

Medical Information Systems ◽

Variability Data

Abstract A method for determination of the Hurst exponent based on Analysis of Variance for processing of medical data sequences is proposed in the paper. It is compared to the “rescaled adjusted range method” developed by Hurst and applied in this paper to heart rate variability data. The obtained results and the performed comparative analysis demonstrate the possibility for effective application of the proposed method in novel medical information systems.

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