scholarly journals Change of Heart Rate Variability at Foreign Students in the Midlands

2020 ◽  
Vol 6 (4) ◽  
pp. 118-123
Author(s):  
A. Satarkulova

Prenosological assessment of the functional state of students studying in different climatic and geographical conditions is a very important task, since it allows timely detection of conditions that precede pathologies in students and contributes to the preservation of health. Goal. Study of the state of the regulatory mechanisms of the cardiovascular system in foreign students living and studying in the midlands. Materials and methods. The study involved 342 first- and third-year students aged 20.0±1.9 years from India. The survey was carried out in the conditions of the low mountains (760 m above sea level, control group) and the midlands (1650 m above sea level). The main time and spectral parameters of HRV were recorded within 5 minutes using the hardware and software complex Psychophysiologist. Results. The comparative assessment showed that students living in the conditions of the midlands had low values of SDNN, TP, VLF, LF and HF and high indicators of AMo, HR, SI, which indicates the predominance of central regulatory mechanisms and the shift of the vegetative balance towards the sympathetic link in this group. Conclusion. The revealed changes in the spectral and temporal parameters of HRV in midlands students characterize the idea of a regulatory and adaptive state of the body, in which energy and metabolic resources are activated, primarily the circulatory system, aimed at maintaining homeostasis in changing environmental conditions.

2019 ◽  
Vol 96 (6) ◽  
pp. 572-576
Author(s):  
E. S. Gevorkyan ◽  
Narine N. Ksadzhikyan

Here was investigated the dynamics of indices of the functional state of the cardiovascular system in students during the educational load, followed by cold inhalation of lavender oil. The study was executed twice: before and after aromatherapy. For the evaluation of the functional capabilities of the cardiovascular system the registration and analysis of ECG were performed by means of the method of variation pulsometry with the use of the hardware-software complex, including portable electrocardiograph brand “Bio-Arm 001”, a personal computer with the software for automatic recording and analysis of ECG. In the experimental situation for each subject there were analyzed five-minutes ECG records. There were investigated statistical, histographical, integral and spectral parameters of the cardiac rhythm. Psychosomatic status of students was assessed by individual survey. The analysis of dynamic characteristics of heart rate variability showed that after the half-hour education load (the warming-up period) in the majority of the students there was observed the exertion of regulatory mechanisms of the heart rhythm. The preventive use of lavender ethereal oil contributes to the enhancement of adaptive capabilities of the body of students, optimization of regulatory mechanisms, and increased tolerance of the body to psycho-emotional loads. Against the background of the impact of lavender ethereal oil the adaptation to the training loads is running via the parasympathetic (more economical) type of regulation of the cardiovascular system of the body. Correcting influence of the odor of aromatic oils on the functional condition of the body may be caused to the fact that the perception of odors and treatment of olfactory information involves the most important parts of the brain: frontal cortex, hypothalamus, amygdala, a brain structure, limbic reticular structures et al., referred to morphological and functional substrates of emotional reactions.


2022 ◽  
Vol 20 (4) ◽  
pp. 33-44
Author(s):  
A. V. Frolov ◽  
Yu. I. Loktionova ◽  
E. V. Zharkikh ◽  
V. V. Sidorov ◽  
A. I. Krupatkin ◽  
...  

Introduction. Yoga breathing exercises improve the ability to significantly reduce the respiratory rate. A decrease of the minute respiration volume results in compensatory reactions of the microcirculatory bed caused by changes in the gas composition. The reaction of the regulatory mechanisms of the microvascular bed can be evaluated by the optical non-invasive laser Doppler flowmetry method. The aim of the study was to assess the tissue microcirculation parameter changes in people performing yoga breathing exercises. Materials and methods. 25 volunteers performed yoga breathing exercises at a frequency of 3 times per minute, 2 times per minute, 1.5 times per minute, 1 time per minute for 5 minutes, and free breathing for 6 minutes before and after breathing exercises. Parameters aimed to defin the reaction of skin microcirculation in different body areas were simultaneously recorded in six sites by laser Doppler flowmetry using a distributed system of wearable analyzers. The parameters of tissue microcirculation recorded by the method of laser Doppler flowmetry were: the index of microcirculation (Im), nutritive blood flow (Imn), the amplitude of myogenic (Am), neurogenic (An), endothelial (Ae), respiratory (Ar) and cardiac (Ac) regulation circuits. Results. Yoga breathing exercises led to increase of microcirculation index at all breathing frequencies. Breathing at a frequency of 1.5 and 1/minute leads to a significant increase in nutritional blood flow. Low-frequency breathing exercises lead to an increase in blood pressure at the lowest breathing rates – 1.5/minute and 1/minute. The most significant changes were achieved at the lowest respiration rates (1 and 1.5/minute), that could be associated with hypoxic-hypercapnic mechanisms. Conclusion. The absence of significant changes in microcirculation parameters after low-frequency respiration during measurements in the supraorbital arteries in both groups characterizes the work of homeostatic mechanisms for maintaining brain perfusion in stressful situations for the body (low-frequency types of respiration, hypercapnia and hypoxia). When measured in the extremities, a change in the effect of the circulatory system regulatory mechanisms was observed; along with an increase in skin perfusion and the nutritional component, it can characterize the compensatory reaction of the microcirculation to respiration change.


2020 ◽  
Vol 13 (1) ◽  
pp. 95-101
Author(s):  
Elena Anatolevna Milashechkina ◽  
Irina Nikolaevna Gernet ◽  
Vitalii Sergeevich Milashechkin

Background: About 40% of foreign students from 150 countries of the world study at the Peoples' Friendship University of Russia. Unusual environment, other sociocultural traditions, climatic and geographic factors, time-related changes make special demands on the adaptationof foreign students. It is especially difficult for students with health status deviations. Aim: The article aims to assess the psychophysiological parameters of adaptation in foreign students with impaired health status. Materials and methods: The study was conducted on the basis of the Peoples' Friendship University of Russia. Male students aged from 18 to 19 years participated in the study. All students belong to a special medical group for health reasons and are divided into two groups: the control (Russian students, n = 28) and experimental (foreign students, n = 35) groups. To assess the psychophysiological features of adaptation, the indicators of response to light and sound stimuli were used, as well as the test of maximum oxygen consumption, the duration of individual minutes, and the orthostatic test conducted with the help of Sports psychophysiologist hardware and software complex (no. 2010617789). The obtained data were subjected to variational and statistical analysis using the Microsoft Excel 2010 and SPSS (version 19.0 for Windows) software. The survey was conducted with the written consent of the students. Results: Significant differences in simple sensorimotor response to light and sound stimuli were revealed in foreign students compared to Russian students (P ≤ 0.05). Also, more than half of the students from both groups had a low level of physical performance. However, males from the experimental group were characterized by lower values. The duration of the individual minute in foreign students with health status deviations is much shorter than in students from the control group. There were no significant differences in the data btained in the orthostatic test. Conclusion: In males of both groups, pathological processes are characterized by a decrease in the functional capacities. However, most psychophysiological parameters are worse in foreign students. This indicates a decrease in the adaptive capacity of students from the experimental group and indirectly indicates the imbalance in the psychophysiological status.


2020 ◽  
Vol 5 (4) ◽  
pp. 48
Author(s):  
Y.V. Kyrpenko ◽  
M.I. Budur ◽  
S.V. Palevych ◽  
О.G. Poddubny

<p><strong>The purpose of the work</strong><strong>: </strong>to determine the impact of Kyokushinkai Karate classes on the ability to adapt to different physical activities of boys of 10-12 years of age during classes.</p><p><strong>Material and methods</strong><strong>. </strong>78 boys of 10-12 years were surveyed, 27 of them expressed their desire to participate in the sports section of Kyokushinkai Karate (EG). CG (29) includes guys who do not have contraindications for playing sports. The essence of the forming experiment was to compare the growth rates of individual indicators of physical qualities, functional preparedness of children who attended the Kyokushinkai Karate training program (experimental group - EG) with children who were engaged in physical education only during physical culture lessons (control group - CG). During the year a monitoring examination of children is carried out to assess physical development, adaptation to exercise, adaptive potential of the circulatory system, the functional state of the apparatus of external respiration, the energy potential of the organism, physical fitness and methods of mathematical statistics.</p><p><strong>Results</strong><strong>. </strong>The plan of preparation of training groups on the basis of rational sequence of use of a set and volume of means and methods of physical education of normative part of the сurriculum "Kyokushinkai Karate" is presented. Adaptation processes occurring in the body of boys, during the acquisition of knowledge and skills within the walls of the school are determined by a number of educational, behavioral, everyday and other factors, each of which has a specific purposefulness to achieve a useful end result of learning. The course of study at school is undoubtedly accompanied by the adaptation of children to the new mode of study, rest, psychological and physical activity, and the question of the dynamics of indicators of functional systems of the child's organism came to the plane of our research.</p><p><strong>Conclusion. </strong>In the course of the research, we came to the conclusion that the plan developed and implemented in the sports circles improves the adaptation capabilities of the boys of this age group during Kyokoshinkai karate classes.</p>


2018 ◽  
Vol 40 (1) ◽  
pp. 51-61
Author(s):  
Nguyen Thi Thuong Huyen ◽  
Tran Thi Truc Dao ◽  
Hoang Nghia Son

Arsenic is one of heavy metal elements which is dangerous to human and aquatic animals. Accumulating in the body,arsenic causes serious damage to organ systems such as the nervous system, circulatory system, digestive system, reproductive system, ect and even cancer, skin cancer is the most common type. This study aims to evaluate the influences of Arsenic (As) concentrations on different stages in embryonic development of zebrafish (Danio rerio): blastura, gastrula, segmentation, pharyngula and hatching. After mating, embryos were exposed to As in the examined concentrations: 0, 20, 50, 80, 110, 140, 170, 200, 230, 260 µg/L in the Hank’s embryonic medium. It was observed that the survival rate of embryonic zebrafish decreased gradually corresponding to the increasing the concentration of As and the development stages of the embryo. However, examined concentrations of As in this study did not reach the threshold lethal concentration (LCt50) of embryos. With the increasing of examined As concentrations, the heartbeat increased linearly, the body turning beat of each stage decreased linearly. The highest heartbeat was 237.73±1.87 beat/min in 260 µg/L concentration while it was 197.60±2.20 beat/min in the control group (p < 0.05) in the hatching stage. The lowest body turning was 2.53 beat/min while it was 5.50 beat/min (p < 0.05) in the control group in the pharyngula stage. Moreover, the As prolonged the hatching duration and reduced the hatching rate of embryonic zebrafish, after 72 hour fertilization, the hatching rate was 77.78% in 260 µg/L concentration while it was 98.86% in the control group (p < 0.05). 


Author(s):  
N. V. Ul′ikhina ◽  
E. E. Shiryayeva

Introduction. Dorsopathy occurs in 90 % of people throughout life, and is in the first place for the duration of temporary disability in people after 45 years. The sanatorium-resort phase of rehabilitation, including usually physiobalneotherapy, is important in the treatment of dorsopathy. Radon therapy is one of the physiobalneotherapy types. However the effectiveness of radon monotherapy is not more than 25–38 % for various forms of dorsopathy. Therefore a combination of balneotherapy with additional methods of infl uencing on the organism is used in modern balneology to increase the effectiveness of therapy and to ensure the achievement of a positive treatment result in a shorter time without pathological balneoreaction and exacerbation. Osteopathic correction can be considered as such an additional method of infl uencing on the organism, because it triggers a cascade of regulatory reactions at the local, regional and global levels, and these reactions have a cumulative and prolonged effect.The goal of research — to substantiate the possibility of osteopathic correction using in conjunction with radon baths at the sanatorium-resort stage of rehabilitation in patients suffering from dorsopathy.Materials and methods. The study involved women aged 25 to 60 years, with a diagnosis of dorsopathy, taking radon therapy. Using the method of simple randomization with a random number generator, the main group (30 people who received radon therapy and osteopathic correction, OC), and the control group (30 people who received only radon therapy) were allocated. At the beginning and the end of treatment the osteopathic status examination of each patient was conducted in parallel with the study of their reactive anxiety level, assessed according to the Spielberger–Hanin scale, the body′s resistance to hypoxia, assessed in the Stange test by the length of breath-holding after inspiration, and the adaptive capacity of the circulatory system, assessed by Coefficient of adaptation L. Kh. Garkavi. The results were processed using nonparametric statistics.Results. It was found that if OC was included in radon balneotherapy, the state of patients suffering from dorsopathy improves statistically significantly (p<0,0001) by the following indicators: the total number of somatic dysfunctions in patients and the number of regional dysfunctions decreased, the level of reactive anxiety decreased, the body′s resistance to hypoxia increased, the adaptive potential of the circulatory system increased. The changes of all indicators in the main group receiving OC in addition to radon therapy were significantly more pronounced than in the control group receiving only radon therapy (p≤0,0001).Conclusion. The results obtained during this study allow recommending the use of osteopathic correction to enhance the effect of the sanatorium-resort treatment. 


2018 ◽  
Vol 2 (6) ◽  
pp. 704-706
Author(s):  
Mahmud Ady Yuwanto ◽  
Yugi Chandra Hari Purnama ◽  
Rizki Eko Prasetyo

Back massage is a smooth movement and pressure on the surface of the skin done on the back. Back massage therapy has a variety of benefits for the body and body system where the body will experience improvement and positive effects after back massage. As for some body systems that receive positive effects of back masssage therapy are the nervous system, muscular system, skeletal system, circulatory system, respiratory system, digestive system, reproduction system, lymph nodes, and skin. With a back massage the body will feel the relaxation so that the felt nyari reduced. The purpose of this study was to determine the effect of back massage on the decrease of pain in elderly in Social House Tresna Werdha Bondowoso. The design of this study used the control group pretest-postets design. The sample size was 40 elderly. In this study back massage technique was given 3 times with a duration of 45 minutes. Statistical test using T-test with p-value of 0.00. Back masage therapy provides positive energy for the elderly where this therapy provides a sense of relaxation and comfort for the elderly so that the pain felt by the elderly decreased as a result of the technique that gives a comfortable sensation. Keywords: pain level; back massage; elderly


2014 ◽  
Vol 84 (1-2) ◽  
pp. 5-11 ◽  
Author(s):  
Eun Y. Jung ◽  
Sung C. Jun ◽  
Un J. Chang ◽  
Hyung J. Suh

Previously, we have found that the addition of L-ascorbic acid to chitosan enhanced the reduction in body weight gain in guinea pigs fed a high-fat diet. We hypothesized that the addition of L-ascorbic acid to chitosan would accelerate the reduction of body weight in humans, similar to the animal model. Overweight subjects administered chitosan with or without L-ascorbic acid for 8 weeks, were assigned to three groups: Control group (N = 26, placebo, vehicle only), Chito group (N = 27, 3 g/day chitosan), and Chito-vita group (N = 27, 3 g/day chitosan plus 2 g/day L-ascorbic acid). The body weights and body mass index (BMI) of the Chito and Chito-vita groups decreased significantly (p < 0.05) compared to the Control group. The BMI of the Chito-vita group decreased significantly compared to the Chito group (Chito: -1.0 kg/m2 vs. Chito-vita: -1.6 kg/m2, p < 0.05). The results showed that the chitosan enhanced reduction of body weight and BMI was accentuated by the addition of L-ascorbic acid. The fat mass, percentage body fat, body circumference, and skinfold thickness in the Chito and Chito-vita groups decreased more than the Control group; however, these parameters were not significantly different between the three groups. Chitosan combined with L-ascorbic acid may be useful for controlling body weight.


2018 ◽  
Vol 32 (1) ◽  
pp. 30-42 ◽  
Author(s):  
Claudia Traunmüller ◽  
Kerstin Gaisbachgrabner ◽  
Helmut Karl Lackner ◽  
Andreas R. Schwerdtfeger

Abstract. In the present paper we investigate whether patients with a clinical diagnosis of burnout show physiological signs of burden across multiple physiological systems referred to as allostatic load (AL). Measures of the sympathetic-adrenergic-medullary (SAM) axis and the hypothalamic-pituitary-adrenal (HPA) axis were assessed. We examined patients who had been diagnosed with burnout by their physicians (n = 32) and were also identified as burnout patients based on their score in the Maslach Burnout Inventory-General Survey (MBI-GS) and compared them with a nonclinical control group (n = 19) with regard to indicators of allostatic load (i.e., ambulatory ECG, nocturnal urinary catecholamines, salivary morning cortisol secretion, blood pressure, and waist-to-hip ratio [WHR]). Contrary to expectations, a higher AL index suggesting elevated load in several of the parameters of the HPA and SAM axes was found in the control group but not in the burnout group. The control group showed higher norepinephrine values, higher blood pressure, higher WHR, higher sympathovagal balance, and lower percentage of cortisol increase within the first hour after awakening as compared to the patient group. Burnout was not associated with AL. Results seem to indicate a discrepancy between self-reported burnout symptoms and psychobiological load.


2017 ◽  
Vol 3 (1) ◽  
pp. 76
Author(s):  
Siti Asiyah ◽  
Dwi Estuning Rahayu ◽  
Wiranti Dwi Novita Isnaeni

The needed of Iron Tablet in pregnancy was increase than mother who not pregnant.  That  cause of  high metabolism at the pregnancy for formed of  fetal organ and energy. One of effort for prevent anemia in mother pregnant with giving the Iron tablet and vitamin c. The reason of  this research in 4 June – 11 July 2014 is for compare the effect of  iron tablet suplementation with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks In Desa Keniten Kecamatan Mojo Kabupaten Kediri. This research method using comparative analytical.  Research design type of Quasy Eksperiment that have treatment group and control group. Treatment group will giving by Iron tablet and 100 mg vitamin C, and control group just giving by iron tablet during 21 days. Population in this research are all of mother pregnant with Gestational Age Of 16-32 Weeks with Sampling technique is  cluster random sampling is 29 mother pregnant. Comparison analysis of  iron tablet suplementation effect with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks, data analysis using Mann Whitney U-test and the calculated U value (44,5) less than U-table (51). So there was difference of iron tablet suplementation effect with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks Therefore, the addition of vitamin C on iron intake is needed to increase the uptake of iron tablets. When the amount of iron uptake increases, the reserves of iron in the body will also increase, so as to prevent anemia in pregnant women; Keywords : Iron Tablet (Fe), Vitamin C, Hemoglobin level, Mother Pregnant


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