scholarly journals ADAPTIVE ABILITIES OF THE MEDICAL STAFF OF MATERNITY HOSPITALS

2020 ◽  
Vol 99 (1) ◽  
pp. 56-62
Author(s):  
Elena P. Kotelevets ◽  
V. A. Kiryushin ◽  
N. I. Prohorov ◽  
P. I. Melnichenko
Keyword(s):  
Preventive Measures ◽  
Low Frequency ◽  
Medical Personnel ◽  
Labor Process ◽  
Total Power ◽  
Autonomous Nervous System ◽  
Work Shift ◽  
Regulatory Systems ◽  
Adaptive Capabilities ◽  
Maternity Hospitals

Introduction. The aim is scientific planning of preventive measures based on the assessment of adaptive capabilities of the organism of medical personnel of maternity institutions in the dynamics of the work shift. Material and methods. With cardiointervalogram variation of the studied indices of the cardiovascular and autonomous nervous system in obstetricians-gynecologists, neonatologists, nurses - midwives, nurses - anesthetists, ward nurses of perinatal centers and maternity hospitals in cities of Ryazan, Smolensk, Lipetsk, and Kolomna at the beginning and at the end of the work shifts. Results. The analysis of heart rate variability revealed significant statistical differences in a number of indices of the spectral region (the decline in values of sympatho-parasympathetic balance (LF/HF), the amplitude of very low-frequency waves (LFW), increase in the total power (TP), as well as an increase in the index of activity of regulatory systems (IARS) (p<0.05), established the relationship between the IARS at the end of the shift and the intensity of the labor process of obstetricians-gynecologists of perinatal centers, nurses-anesthetists, and midwives of perinatal centers. Conclusion. The revealed direct correlation between the IARS at the end of the work shift and the intensity of the labor process of obstetricians-gynecologists of perinatal centers, medical nurses-anesthetists, and midwives of perinatal centers confirms the results of hygienic studies of the labor process intensity and allows planning preventive measures.

Heart rate variability in persons of Tajik nationality during adaptation

2021 ◽  
Vol 25 (4) ◽  
pp. 306-312
Author(s):  
Sarvar S. Raufov ◽  
Sergey N. Shilov
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Activity Index ◽  
Statistical Significance ◽  
Low Frequency ◽  
The Body ◽  
Regulatory Mechanisms ◽  
Regulatory Systems ◽  
Adaptive Capabilities ◽  
The Impact

Relevance . Maintaining the health of migrants while adapting to the new climatic and geographical conditions of residence is an urgent task. The impact of non-specific factors on the body of migrants in new climatogeographic conditions leads to the strain of regulatory and adaptive mechanisms, and in extreme cases to their failure. Objective - to determine the features of heart rate variability in young Tajiks, depending on the type of temperament living in Krasnoyarsk for more than a year. Materials and Methods: A study of heart rate variability in 63 Tajiks aged 18-40 years with different types of temperament, living in Krasnoyarsk for more than a year, was conducted. The types of temperament were determined by indices in accordance with the method of identifying VP-types of temperament according to E.Yu. Petrosyan, Yu. I. Savchenkov. The following indicators of heart rate variability (HRV) were evaluated: heart rate, the power of the high-frequency, low-frequency and very low-frequency spectrum (BV, MV-2, MV-1) of the HRV component, the voltage index of regulatory systems (IN), the centralization index (CI) and the activity index of regulatory systems. To assess the statistical significance of the differences between the samples, the Students criteria were used. Results and Discussion. It was revealed that migrants with an intense type of temperament after moving to a new place of residence increased the indicators of heart rate, BV and IN. At the same time, in the studied groups with a calm and adequate type of temperament, the power of BV was significantly reduced, with an increase in heart rate and CI. The conclusion is made about the influence of typological features of temperament on HRV indicators, when adapting to new climatogeographic living conditions. Individuals with an adequate type of temperament demonstrate the normal functioning of the adaptive capabilities of the body. In individuals with the calm type, an increase in the tension of the regulatory mechanisms was revealed. Conclusion . Significant changes in HRV are demonstrated by migrants with an intense type of temperament, in particular, they are characterized by a high voltage of regulatory mechanisms.

scholarly journals Stress resistance and adaptive capacities of cardiovascular system of graduating teenagers with different level of studying load

2021 ◽  
Vol 11 (8) ◽  
pp. 171-181
Author(s):  
Olena Khomenko ◽  
Oleh Nekhanevych ◽  
Sofiia Simonova ◽  
Yevgeniia Kovalenko ◽  
Valentin Kosse ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiovascular System ◽  
Stress Resistance ◽  
Comprehensive School ◽  
Stress Factors ◽  
Total Power ◽  
Autonomous Nervous System ◽  
School Students ◽  
Adaptive Capabilities

The analysis of stress resistance and adaptive reactions of cardiovascular system was conducted according to the level of heart rate variability of graduating teenagers regardless of their studying load. The survey was held in Dnipro (Ukraine) based on a method of anonymous questioning using a personally developed and standardized questionnaire. 84 teenagers that are students of the 11th form of comprehensive schools and lyceums were asked. 22 children of relevant age from different countries made up a comparison group, among them an online survey was conducted by means of similar English-language questionnaire in Google-form. The assessment of heart rate variability of 46 graduates was given, using a cloud technology of automated interpretation of ECG (PRECISE). Statistical processing was conducted using the application program Statistica 6.0 for Windows. Decreasing of stress resistance and significant violations of adaptive cardiovascular reactions in teenagers of graduating classes in Dnipro was set, especially in lyceum students as a result of insufficient rest of students. During the educational period significant violation of adaptive capabilities takes place in 65.6 % of lyceum students: exhausting of functional organism’s reserves with decline in RMSSD to (17.2±1.9) meters per second, Total power to (607.25±11.9) meters per second has been observed in half of the students. At the same time, 85.3 % of the comprehensive school students have sufficient adaptive and worse resource capacities of an organism. For the first time it was highlighted that the autonomous nervous system among the examined teenagers operates in the imbalance regime of its sympathetic and parasympathetic link with a prevalence of sympathicotonia among the 50 % of lyceum students during a recessional period, 56.3 % during an educational period, while vagotonia and eutonia prevail among the comprehensive school students, not depending on the school year period. It was found out that physical activity promoted increased body resistance to stress factors. The efficient determination of heart rhythm variability (PRECISE diagnostics) was proven to control the functional state and adaptive capabilities of graduates’ cardiovascular system.

scholarly journals The impact of the labor process severity on the formation of health disorders of protected ground grower

2021 ◽  
Vol 100 (6) ◽  
pp. 598-604
Author(s):  
Anna G. Migacheva ◽  
Tamara A. Novikova ◽  
Vladimmir F. Spirin
Keyword(s):  
Functional State ◽  
Work Experience ◽  
Working Environment ◽  
Labor Process ◽  
Cardiorespiratory System ◽  
Work Shift ◽  
Functional Changes ◽  
Adaptive Capabilities ◽  
Health Disorders ◽  
The Impact

Introduction. The severity of the labor process is one of the leading harmful factors of working conditions in greenhouse vegetable growing. Nevertheless, its influence on the formation of health disorders of vegetable growers has not been sufficiently studied. Material and methods. Physiological, hygienic and epidemiological studies were carried out, which included an assessment of the severity of work in the annual cycle, also the functional state of the cardiorespiratory system and the neuromuscular system in the dynamics of the work shift, the general morbidity of vegetable growers according to registration forms No. 025/y. Results. During the labor activity, vegetable growers were established to be exposed to physical overloads caused by the severity of the labor process (classes 3.2, 3.3) in combination with a heating microclimate (classes 3.1-3.3). By the end of the work shift, there was an increase relative to the initial levels of heart rate (p<0.05), a decrease in systolic and diastolic blood pressure, a reduction of maximum muscle strength (by 3.76-5.28%), and endurance of the muscles of the hands (by 18.5-33.15%). This indicated a decrease in working capacity and an increase in fatigue. A reduction in the Skibinski index (by 21.7%) and an increase in the index of resistance to hypoxia (by 38.9%) indicated a decrease in the body’s reserves of oxygen. Increased working levels of the index of functional changes testify about the tension of adaptation mechanisms and insufficient restoration of the body’s resources by the beginning of the shift. A decrease in the body’s physical condition and adaptive capabilities with an increase in professional experience was revealed (p<0.05). There were established statistically significant direct correlations between the prevalence of diseases of the circulatory system (r=0.6), musculoskeletal system, and connective tissue (r=0.35) with work experience in the profession (p<0.05). Conclusion. The revealed violations of the functional state and health of female vegetable growers result from the influence of physical overload in a heating microclimate. The priority measures for the prevention of health disorders of vegetable growers are to reduce physical overload and thermal effects of the working environment.

scholarly journals ADAPTATIVE RESOURCES OF THE MAIN REGULATORY SYSTEMS IN PATIENTS WITH HYPERTENSION UNDER THE HIGHLAND CONDITIONS

2015 ◽  
Vol 69 (1-2) ◽  
pp. 26-31
Author(s):  
Kh. A. Kurdanov ◽  
I. A. Beslaneev ◽  
L. M. Batyrbekova ◽  
M. Kh. Kurdanova
Keyword(s):  
Nitric Oxide ◽  
High Frequency ◽  
Blood Concentration ◽  
Low Frequency ◽  
Total Power ◽  
Frequency Range ◽  
Routine Examination ◽  
Total Blood ◽  
Regulatory Systems ◽  
Study Characteristics

Aim: to study characteristics of hemodynamics, spectral analysis of heart rate variability (HRV) and their association with the total blood concentration of stable metabolites of nitric oxide (nitrites and nitrates) in patients with hypertension living in highlands. Patients and methods: 110 natives of the highlands of Elbrus region were examined. All of them were divided into 2 groups — with 2d stage of hypertension (n =50) and conditionally healthy (n =60). All the participants were performed routine examination under the conditions of hospitals and out-patient clinics. Moreover they were performed ECG, rhythm-cardiography, echo-CG evaluation of the blood pressure, renal and thyroid ultrasound and eye-ground examination. The assessment of HRV was made. Results: in the group of patients with hypertension there was decrease in the total power of HRV — TP, low frequency range — VLF, LF and high frequency range HF. The main characteristics of the central and intracardiac hemodynamics were significantly higher in patients with hypertension in decreasing of nitric oxide production. Conclusions: reverse reliable correlations were established between low frequency values of HRV, morpho-functional characteristics of the left ventricle and blood concentration of nitric oxide in patients with hypertension. 

scholarly journals Functional condition of the central nervous system of medical personnel of maternity hospitals

2020 ◽  
Vol 28 (1) ◽  
pp. 37-43
Author(s):  
Elena P. Kotelevets ◽  
Valery A. Kiryushin
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Nursing Staff ◽  
Medical Personnel ◽  
Well Being ◽  
Functional Condition ◽  
Work Shift ◽  
Professional Groups ◽  
Maternity Hospitals ◽  
The Central Nervous System

Aim. Analysis of functional capacities of the central nervous system (CNS) of medical personnel of maternity hospitals in the dynamics of the work shift. Materials and Methods. Using the WAM method, the functional condition of the central nervous system of doctors (obstetricians, gynecologists, neonatologists), nurses (midwives, anesthesiologists, ward nurses) in perinatal centers and maternity hospitals in the cities of Ryazan, Smolensk, Lipetsk, and Kolomna at the beginning and end of the work shift was studied. Results. Analysis of parameters of operational self-assessment of the functional state of the central nervous system (well-being, activity, mood) revealed the dynamics of reducing the levels of well-being and activity of the main professional groups by the end of the work shift. Calculation of the W+A/M index in the dynamics of the working shift showed its reduction in obstetricians-gynecologists and neonatologists of perinatal centers by 5.0% (p=0.024174) and 10.6% (p=0.026637), respectively; by 10.6% in maternity hospitals in both professional groups (p=0.037452 and 0.039579). Among the nursing staff of perinatal centers, the index decreased in midwives and nurses anesthesiologists by 5.3% (p=0.000752) and 10.6% (p=0.000752), respectively. In groups of nursing staff of maternity hospitals, decrease in the index was determined in anesthesiologists, midwives and ward nurses by 16.7% (p=0.006566), 10.6% (p=0.003385) and 11.2% (p=0.001059), respectively. Conclusion. Statistically significant differences were found in the analysis of well-being parameters of neonatologists and midwives of perinatal centers, in all the studied respondents of maternity hospitals; of activity in obstetrician-gynecologists, neonatologists and midwives of perinatal centers, in all surveyed respondents of maternity hospitals; of W+A/N index in obstetrician-gynecologists, neonatologists, midwives, in anesthesiologists of perinatal centers and in all studied professional groups of maternity hospitals. Reduction of the functional condition of the central nervous system by the end of the work shift may indicate developing fatigue.

Assessment of motor activity of knowledge workers (on the example of employees of social service centers)

2020 ◽  
Vol 60 (11) ◽  
pp. 727-729
Author(s):  
Nadezhda S. Belyakova ◽  
Artyom K. Sergeev
Keyword(s):  
Body Weight ◽  
Motor Activity ◽  
Social Service ◽  
Preventive Measures ◽  
Knowledge Workers ◽  
Actual Body Weight ◽  
Service Center ◽  
Work Shift ◽  
Working Day ◽  
The Ideal

Introduction. The work of many employees in the service sector is associated with a constant stay in a forced working position sitting at the computer for up to 60-80% of the time of the entire work shift, which leads to fatigue. The rate of fatigue depends on the specifics of work: it is much more likely to occur when working with monotony, muscle tension. An important role in the appearance of fatigue is also played by the attitude of a person to the work performed. The aim of study is to study the motor activity of knowledge workers in social service centers for the development of preventive measures aimed at reducing hypokinesia and hypodynamia during the work shift. Materials and methods. The following methods were used in the study: questionnaire and working day timing, calculation methods to determine whether the actual body weight corresponds to the ideal one using the Broka’s index and the Ketle’s index. The study involved employees of the integrated social service center "Raduga" in Bugulma. Results. An assessment of the motor activity of employees of the social service center of the population was made, and it was concluded that the problem of hypokinesia and hypodynamia is relevant and significant for employees of social service centers of the population both in their daily activities and during the work shift. Most of the employees showed an increase in actual body weight compared to the ideal one, which is to some extent due to hypokinesia and hypodynamia both during the working day and at home. Conclusions. Preventive measures aimed at compliance with the principles of rational nutrition and a healthy lifestyle, work and rest regimes, high-quality preliminary and periodic medical examinations are proposed.

Changes in the Total Power of Beta and Theta Bands When Using EEG Biofeedback in Primary School-Age Children Having Difficulties with Voluntary Regulation

2020 ◽  
pp. 331-340
Author(s):  
Yuliya S. Dzhos ◽  
◽  
Irina A. Men’shikova ◽  
Keyword(s):  
Left Hemisphere ◽  
Spectral Characteristics ◽  
Low Frequency ◽  
School Age Children ◽  
Total Power ◽  
Eeg Biofeedback ◽  
Beta Band ◽  
Bioelectric Activity ◽  
Voluntary Regulation ◽  
The Brain

This article presents the results of the study on spectral electroencephalogram (EEG) characteristics in 7–10-year-old children (8 girls and 22 boys) having difficulties with voluntary regulation of activity after 10 and 20 neurofeedback sessions using beta-activating training. Brain bioelectric activity was recorded in 16 standard leads using the Neuron-Spectrum-4/VPM complex. The dynamics was assessed by EEG beta and theta bands during neurofeedback. An increase in the total power of beta band oscillations was established both after 10 and after 20 sessions of EEG biofeedback in the frontal (p ≤ 0.001), left parietal (p ≤ 0.036), and temporal (p ≤ 0.003) areas of the brain. A decrease in the spectral characteristics of theta band oscillations was detected: after 10 neurofeedback sessions in the frontal (p ≤ 0.008) and temporal (p ≤ 0.006) areas of both hemispheres, as well as in the parietal area of the left hemisphere (p ≤ 0.005); after 20 sessions, in the central (p ≤ 0.004), frontal (p ≤ 0.001) and temporal (p ≤ 0.001) areas of both hemispheres, as well as in the occipital (p ≤ 0.047) and parietal (p ≤ 0.001) areas of the left hemisphere. The study into the dynamics of bioelectric activity during biofeedback using EEG parameters in 7–10-year-old children with impaired voluntary regulation of higher mental functions allowed us to prove the advisability of 20 sessions, as the increase in high-frequency activity and decrease in low-frequency activity do not stop with the 10th session. Changes in these parameters after 10 EEG biofeedback sessions are expressed mainly in the frontotemporal areas of both hemispheres, while after a course of 20 sessions, in both the frontotemporal and central parietal areas of the brain.

scholarly journals The Influence ofNrf2on Cardiac Responses to Environmental Stressors

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Reuben Howden ◽  
Eva Gougian ◽  
Marcus Lawrence ◽  
Samantha Cividanes ◽  
Wesley Gladwell ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Frequency ◽  
Low Frequency ◽  
Therapeutic Strategies ◽  
Environmental Stressors ◽  
Total Power ◽  
Airborne Pollutants ◽  
Cardiac Responses

Nrf2protects the lung from adverse responses to oxidants, including 100% oxygen (hyperoxia) and airborne pollutants like particulate matter (PM) exposure, but the role ofNrf2on heart rate (HR) and heart rate variability (HRV) responses is not known. We hypothesized that genetic disruption ofNrf2would exacerbate murine HR and HRV responses to severe hyperoxia or moderate PM exposures.Nrf2-/-andNrf2+/+mice were instrumented for continuous ECG recording to calculate HR and HRV (low frequency (LF), high frequency (HF), and total power (TP)). Mice were then either exposed to hyperoxia for up to 72 hrs or aspirated with ultrafine PM (UF-PM). Compared to respective controls, UF-PM induced significantly greater effects on HR (P<0.001) and HF HRV (P<0.001) inNrf2-/-mice compared toNrf2+/+mice.Nrf2-/-mice tolerated hyperoxia significantly less thanNrf2+/+mice (~22 hrs;P<0.001). Reductions in HR, LF, HF, and TP HRV were also significantly greater inNrf2-/-compared toNrf2+/+mice (P<0.01). Results demonstrate thatNrf2deletion increases susceptibility to change in HR and HRV responses to environmental stressors and suggest potential therapeutic strategies to prevent cardiovascular alterations.

Abstract P315: Increase in Stress May Contribute to Lower Heart Rate Variability in Healthy Young Subjects

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Amanda C Costa ◽  
Ana Gabriela C Silva ◽  
Cibele T Ribeiro ◽  
Guilherme A Fregonezi ◽  
Fernando A Dias
Keyword(s):  
Cardiovascular Disease ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Healthy Volunteers ◽  
Perceived Stress ◽  
Low Frequency ◽  
Statistical Correlation ◽  
Total Power ◽  
The Impact ◽  
Nonparametric Correlation

Background: Stress is one of the risk factors for cardiovascular disease and decreased heart rate variability is associated to increased mortality in some cardiac diseases. The aim of the study was to assess the impact of perceived stress on cardiac autonomic regulation in young healthy volunteers. Methods: 35 young healthy volunteers (19 to 29 years old, 6 men) from a Brazilian population were assessed for perceived stress by the translated and validated Perceived Stress Scale (PSS, 14 questions) and had the R-R intervals recorded at rest on supine position (POLAR RS800CX) and analyzed (5 minutes, Kubius HRV software) by Fast-Fourier Transform for quantification of Heart Rate Variability (HRV). Results: Average data (±SD) for age, heart rate, BMI, waist circumference and percentage of body fat (%BF) were: 21.3±2.7 years; 65.5±7.9 bpm; 22.3±1.9 Kg/m 2 ; 76.0±6.1 cm and 32.1±6.6%; respectively. The mean score for the PSS-14 was 23.5±7.2 and for the HRV parameter as follow: SSDN=54.8±21.2ms; rMSSD=55.9±32.2ms; low-frequency (LF)= 794.8±579.7ms 2 ; High-frequency (HF)= 1508.0±1783.0 ms 2 ; LF(n.u.)= 41.1±16.2; HF(n.u.)= 58.9±16.2; LF/HF=0.89±0.80 and Total power (TP)= 3151±2570ms 2 . Spearman nonparametric correlation was calculated and there was a significant correlation of PSS-14 scores and LF (ms 2 ) (r=−0.343; p= 0.044). Other HRV variables did not shown significant correlation but also had negative values for Spearman r (TP r=−0.265, p=0.124; HF r=−0.158; SSDN r=−0.207; rMSSD r=−0.243, p=0.160). LF/HF and LF(n.u.) did not correlate to PSS-14 having Spearman r very close to zero (LF/HF r=−0.007, p=0.969; LF(n.u.) r=−0.005, p=0.976). No correlation was found for HRV parameters and BMI and there was a trend for statistical correlation of %BF and LF (ms 2 ) (r=−0.309, p=0.071). Conclusions: These data demonstrate a possible association of perceived stress level and HRV at rest. Changes in LF can be a consequence of both sympathetic and parasympathetic activity, however, analyzing the other variables HF, TP, SSDN and rMSSD (all negative Spearman r) and due to the lack of changes in LF/HF ratio and LF(n.u.) we interpret that increased stress may be associated to decrease in overall heart rate variability. These changes were seen in healthy individuals and may point out an important mechanism in cardiovascular disease development.

STATE OF AUTONOMIC REGULATION OF HEART RHYTHM IN YOUNG AND AGED RATS BEFORE AND AFTER APPLICATION OF DIFFERENT REGIMENS OF RHYTHMIC EXTREME COOLING

2020 ◽  
pp. 436-443
Author(s):  
В. В. Кулик ◽  
В. Г. Бабийчук
Keyword(s):  
Heart Rate ◽  
Metabolic Regulation ◽  
Experimental Studies ◽  
Autonomic Regulation ◽  
The Body ◽  
Total Power ◽  
Aged Rats ◽  
Cooling Mode ◽  
Adaptive Capabilities ◽  
Extreme Cold

В работе изучено влияние разных режимов ритмических экстремальных холодовых воздействий на состояние вегетативной регуляции сердечного ритма у молодых и старых крыс. По данным спектрального анализа вариабельности сердечного ритма установлено, что у молодых крыс использование температурных режимов ритмических экстремальных холодовых воздействий, РЭХВ (-120 °С; -120 °С; -120 °С) и (-60 °С; -120 °С; -120 °С) значительно повышало адаптационные возможности организма за счет активации собственных гомеостатических регуляторных систем. При этом комбинированный режим РЭХВ (-60 °С; -120 °С; -120 °С) оказался наиболее оптимальным для старых животных, поскольку его применение не сопровождалось чрезмерной активацией симпатико-адреналовой системы на ранних этапах экспериментальных исследований в отличие от режима (-120 °С; -120 °С; -120 °С). Кроме того, использование данного режима охлаждения способствовало статистически значимому увеличению показателей общей мощности спектра нейрогуморальной регуляции не столько за счет повышения активности гуморально-метаболического звена регуляции, преобладание которого характерно для пожилого возраста, сколько благодаря увеличению тонуса вегетативных центров, причем парасимпатические влияния на миокард превалировали над симпатическими. The influence of various rhythmic extreme cold effects on the state of autonomic regulation of heart rate in young and aged rats was studied. According to the spectral analysis of heart rate variability, it has been found that in young rats, using rhythmic extreme cold exposures (RECE) temperature regimens of (-120 °С; -120 °С; -120 °С) and (-60 °С; -120 °С; -120 °С) significantly increased adaptive capabilities of the body due to the activation of its own homeostatic regulatory systems. At the same time, the combined regimen of RECE (-60 °С; -120 °С; -120 °С) occurred to be the most optimal for aged animals, since its use was not accompanied with an excessive activation of sympathoadrenal system at the early stages of experimental studies, in contrast to the regimen (-120 °С; -120 °С; -120 °С). In addition, the use of this cooling mode contributed to a statistically significant increase in the total power of spectrum of neurohumoral regulation not so much due to a rise in activity of humoral-metabolic regulation link, the prevalence of which is characteristic of an old age, but due to an increase in the tone of vegetative centers, herewith the parasympathetic effects on the myocardium prevailed sympathetic ones.

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