scholarly journals The features of vegetative regulation of the heart rate in athletes with different levels of perception and processing of visual information

2017 ◽  
Vol 8 (2) ◽  
pp. 239-243 ◽  
Author(s):  
O. Skyba ◽  
L. Pshenychna ◽  
O. Ustymenko-Kosorich

The study involved 32 children aged from 11-12 who were receiving training in sports schools in Sumy .The children were divided into three study groups with high, medium and low levels of sensorimotor reactivity, defined in terms of complex visual-motor response. The study methods were psychophysiological, cardiointervalography, mathematical and statistical. We found that the majority of individuals with a medium level of sensorimotor reactivity possessed vegetative tonus, characterized by background emphotony, while sympathicotonia was prevalent in the group of athletes with a high level of sensorimotor reactivity, in comparison with those with medium and low levels of sensorimotor reactivity. Vegetative imbalance that manifests via hypersympaticotonic reactivity occurred among athletes with high and medium levels of sensorimotor reactivity, which is the evidence of stress on the cardiovascular system, decline of adaptive capacity of the organism in the individuals investigated. Shorter latent periods of complex visual-motor responses (LP SR 1–3 and LP SR 2–3) were observed among athletes with hypersympaticotonic vegetative reactivity, compared to sportsmen with normal type of vegetative reactivity (P < 0.05). Analysis of indicators of heart rate variability revealed an increased activity of the sympathoadrenal system in athletes with a high level of sensorymotor response, which is confirmed by significantly lower values of SDNN and RMSSD in comparison with athletes with a low level of sensorymotor response. The activation of central regulation in athletes with a high level of sensorimotor responses also show significantly higher values IN and Amo, in comparison with athletes with a low level of sensorymotor response. The figures IN (47.7%), and Amo (45.3%) were those most effected by the level of sensorimotor reactivity. Less effected were figures of SDNN (43.1%), which reflects general heart rate variability and RMSSD (43.1%), which reflects high frequency components of heart rate. Analysis of change in dynamics of figures of heart rate variability provides evidence of higher activity of the sympathoadrenal system in athletes with a high level of sensorimotor reactivity, which facilitates increased stress on heart rhythm vegetative regulation mechanisms, accompanied by decline of parasympathetic influences of the vegetative nervous system. 

2016 ◽  
pp. 52-55
Author(s):  
E. V. Tsitko ◽  
Е. G. Маlауеvа ◽  
I. P. Yatsenko ◽  
E. L. Tsitko ◽  
I. A. Hudyakov

Objective: to study the vegetative regulation of cardiac function by means of Holter monitoring in patients diagnosed with diffuse toxic goiter associated with therapy with tireostatics and beta adrenoblockers (рropranololum, bisoprolol). Material and methods . 82 patients diagnosed with a diffuse toxic goiter aged 18-60, out of them 24 men and 58 women participated in the study. The patients were divided into two groups: the first group (46 patients) took non-selective beta adrenoblocker Propranololum (Anaprilin), the second group (36 patients) took beta1-adrenoblocker Bisoprolol. The control group included 30 almost healthy volunteers. All the patients were performed Holter monitoring with the assessment of heart rate variability, their thyroid status was studied. Results. We have done the comparative analysis of the thyroid status in the groups of the patients with diffuse toxic goiter following different schemes of pathogenetic therapy. We have analyzed the data of Holter monitoring with the assessment of heart rate variability related to the intake of cardioselective and non-selective beta adrenoblockers. Conclusion . Patients with compensated thyrotoxicosis taking Bisoprolol at a dose of 5 mg/day and Thiamazolum of 15 mg/day have signs of vegetative imbalance in the form of dominance of sympathetic section of the vegetative nervous system. When the compensation of thyrotoxicosis is achieved in patients using the scheme of 40 mg/day of Anaprilin and 20mg/day of Thiamazolum, the vegetative regulation of cardiac function is characterized by vegetative balance. The correction of medicamentous therapy of vegetative imbalance is possible taking into account results of Holter monitoring.


2019 ◽  
Vol 10 (2) ◽  
pp. 27-31
Author(s):  
Vladimir S. Ivanov ◽  
Lilia I. Levina ◽  
Sergey N. Ivanov ◽  
Vladimir S. Vasilenko

Young men of call-up age with neurocirculatory were asthenia were examined for autonomic regulation of cardiac activity and vasodilatory reserve of the arteries. The functional state of the autonomic nervous system (ANS) was studied with the aid of rythmography with analyse of heart rate variability. The following parameters were studied: vegetative regulation type, responsiveness of departments of ANS and autonomic provision of cardiac activity. The type of vegetative regulation was determined by the mean value of RR interval and indication of the heart rate variability (∆RR). Reactivity of parasympathetic and sympathetic divisions of the ANS and autonomic support of cardiac activity were investigated using breathing test. To ensure vegetative dysadaptation cardiac activity includes reaction with low vegetative coverage of both divisions of the ANS and paradoxical reaction in which there is a decrease in ∆RRmax (instead of increase) and an increase in ∆RRmin instead of decrease. These reactions indicate autonomic dysfunction. Vasodilatory reserve of the arteries was investigated using ultrasonography of the brachial artery with compressive sample and determination of endothelium-dependent vasodilation. It was found that in boys with neurocirculatory asthenia vagotonic and sympathetic types of vegetative regulation are often determined by disadaptative vegetative provision of cardiac activity, which is accompanied by endothelial dysfunction with reduced vasodilator reserve of the arteries.


1993 ◽  
Vol 43 ◽  
pp. 64
Author(s):  
C. Carpeggiani ◽  
M. Emdin ◽  
S. Bianchini ◽  
A. Macerata ◽  
G. Kraft ◽  
...  

2012 ◽  
Vol 34 (05) ◽  
pp. 424-430 ◽  
Author(s):  
R. Oliveira ◽  
A. Leicht ◽  
D. Bishop ◽  
J. Barbero-Álvarez ◽  
F. Nakamura

2019 ◽  
Vol 25 (4) ◽  
pp. 44-50
Author(s):  
A.V. Syvak ◽  
L.A. Sarafyniuk ◽  
P.V. Sarafyniuk ◽  
L.I. Pilhanchuk ◽  
N.O. Sorokina

Mechanisms of regulation of cardiac rhythm have many individual features, which are conditioned by age, sex, training of the organism, strength and nature of external influence, constitutional features of the organism. The purpose of the work is to determine the relationship between cardiointervalographic indices and parameters of the external structure of the body in highly skilled wrestlers of the mesomorphic somatotype. The study involved 24 wrestlers between the ages of 17 and 21 with a high level of sportsmanship and more than 3 years of experience. All of the wrestlers were of medium weight and engaged in free and Greco-Roman wrestling. We conducted a study of heart rate variability on the cardiac computer diagnostic complex “OPTW” following the recommendations of the European and North American Cardiac Association (1996). The indices of vegetative homeostasis according to Bayevsky, variational heart rate, statistical and spectral cardiointervalographic indicators were determined. Anthropometry was performed according to the method of V.V. Bunak (1941), somatotypological study – by the calculated modification of the Heath-Carter method (1990), determination of the component composition of body weight by the method of Matejko (1992). In the package “STATISTICA 5.5” correlation analysis was performed using the nonparametric Spearman statistical method. It was found that in the wrestlers of the mesomorphic somatotype, the variations of the pulsometry had the highest number and strength of reliable correlations with constitutional parameters, most of which were inverse of the mean force. All statistical indicators of heart rate variability with indicators of the external structure of the body had only inverse significant correlations. The least significant correlations were found for spectral indices and parameters of vegetative homeostasis. According to the results of the correlation analysis in the wrestlers of the mesomorphic somatotype, we can assume that with the increase of total, longitudinal, circumferential, transverse body sizes and muscle and bone mass, the variability of the heart rhythm of the sympathetic department of the autonomic nervous system will be more pronounced.


2020 ◽  
pp. 147-155
Author(s):  
V.A. Belyaeva ◽  

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.


2019 ◽  
Vol 4 (4) ◽  
pp. 25-31
Author(s):  
V. E. Isaenkov ◽  
A. A. Chichikov ◽  
R. A. Dzankisov

The features of tolerance to acute hypoxia by individuals with different levels of trait anxiety are presented. It was established that changes in such physiological parameters as heart rate in individuals with a high level of personal anxiety are more pronounced in hypoxic conditions. In particular, in this group, by the 25th minute of lifting in the altitude training chamber to a height of 5000 m, the heart rate increased by an average of 38.1% (p<0,01) of background values. In persons with a low level of trait anxiety, an increase in heart rate does not exceed an average 32% (p<0,01). However, in subjects with a high level of trait anxiety, compared with people with a low level of trait anxiety, a more pronounced increase in the Rufie index at an average of 18,2% (p<0,01). In addition, in individuals with a high level of trait anxiety, a more pronounced slowing-down time of a complex sensorimotor reaction by 33,0 ms (p<0,05) from the background value was observed, while in people with a low level of trait anxiety, on average, only by 20,2 ms (p<0,05). Thus, changes in individual physiological parameters in individuals with a high level of trait anxiety are more pronounced, their functional state is less tolerant to the hypoxia effect, and the level of physical performance is lower on average in this group.


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