DIAGNOSIS OF PSYCHO-EMOTIONAL STRESS IN PROFESSIONAL RECRUITMENT

2021 ◽  
Author(s):  
O.V. Zhbankova ◽  
◽  
O.I. Yushkova ◽  
A.V. Kapustina
Keyword(s):  
Cardiovascular System ◽  
Acute Stress ◽  
Dynamic Pressure ◽  
Peripheral Resistance ◽  
Circulatory System ◽  
Minute Volume ◽  
The Body ◽  
Psychological Status ◽  
Psychomotor Skills ◽  
Resistance To Stress

Abstract. Introduction. Professional selection of workers in extreme occupations associated with increased danger and responsibility is an important task of labor physiology. The study of psychomotor skills under conditions of acute stress, the assessment of the physiological reactions of the cardiovascular system will determine the professional suitability of candidates for various specialties (technical or intellectual-analytical). Purpose of work. The study of diagnostic methodological approaches to assessing the professional suitability of persons in hazardous professions in psychophysiological professional selection. Materials and methods. Psychophysiological studies included the study of psychomotor skills, psychological testing according to the MMIL and 16 FLO tests, physiological studies of hemodynamic features in candidates with different resistance to stress (calculation of stroke blood volume - SV, MC blood minute volume and peripheral resistance of PS), professional analysis of the labor activity of workers to identify the requirements that hazardous professions place on the body of workers, Research results. In candidates for engineering and technical specialties, the tension of the circulatory system reflected high values of the average dynamic pressure (105.73 ± 1.45 mm Hg), changes in the optimal hyperkinetic type of blood circulation to hypokinetic: 66.7% of those examined with low resistance to stress. In candidates for communicative specialties, a sufficient level of physical activity contributed to the stability of the indicators of the cardiovascular system. Conclusions. Informative indicators have been established for assessing the professional suitability of candidates to perform official tasks in extreme conditions: changes in handwriting signs, peculiarities of psychological status (anxiety, conformism), hemodynamic characteristics

scholarly journals PHYTOADAPTOGENS IN THE TUMOURS BIOTHERAPY AND GERIATRICS (PART 2)

2020 ◽  
Vol 19 (3) ◽  
pp. 12-20 ◽  
Author(s):  
O. A. Bocharova ◽  
R. V. Karpova ◽  
E. V. Bocharov ◽  
A. A. Vershinskaya ◽  
M. A. Baryshnikova ◽  
...  
Keyword(s):  
Biological Activity ◽  
Cardiovascular System ◽  
Wide Spectrum ◽  
Current Data ◽  
The Body ◽  
Rhodiola Rosea ◽  
Resistance To Stress ◽  
Antitumor Properties

Phytoadaptogens (ginseng, eleutherococcus, rhodiola rosea, aralia, etc.) have a wide spectrum of biological activity, supporting the body in a state of nonspecific increased resistance to stress. The second part of the review provides information of the phytoadaptogens normalizing effects on the cardiovascular system. Analyzes current data on the antitumor properties of phytoadaptogens in relation to the effect on the onset and development of tumours, metastasis, recurrence, development of cytostatic disease, confirming the prospect of their using in drugs for prevention and biotherapy of tumour diseases.Past 1 see: Phytoadaptogens in the tumours biotherapy and geriatrics (Past 1). Russian Journal of Biotherapy 2020;19(2):13–21.

scholarly journals Comparative characteristics of changes in central hemodynamics during early recovery after different exercise regimes

2021 ◽  
Vol 27 (2) ◽  
pp. 47-52
Author(s):  
H.V. Lukyantseva ◽  
O.M. Bakunovsky ◽  
S.S. Malyuga ◽  
T.M. Oliinyk ◽  
N.R. Manchenko ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Dynamic Loading ◽  
Vascular Resistance ◽  
Dynamic Load ◽  
Static Loading ◽  
Circulatory System ◽  
The Body ◽  
Central Hemodynamics ◽  
Early Recovery

The cardiovascular system is one of the most important functional systems of the body, which determine the level of physical performance of the body. Insufficient study of the response of the circulatory system to the combination of strength training with endurance exercises requires more detailed comparative studies of the impact of dynamic and static loads on the indicators of central hemodynamics. Accordingly, the aim of our study was to study the characteristics of the reaction of the cardiovascular system in the period of early recovery after dosed exercise of a dynamic and static nature. The study examined the response of the central hemodynamics of young men in the period of early recovery after dynamic loading (Martine functional test) and static loading (holding on the stand dynamometer DS-200 force with a power of 50% of maximum standing force). The change in circulatory system parameters was recorded using a tetrapolar thoracic impedance rheoplethysmogram on a computerized diagnostic complex “Cardio +”. It is established that the dynamic load in the period of early recovery does not cause a significant positive chronotropic effect, leads to a decrease in vascular resistance of blood flow, to an increase in pulse blood pressure. The increase in cardiac output is mainly due to the increase in stroke volume, which indicates a fairly high functional reserves of the heart. It is revealed that under conditions of static loading the reaction of central hemodynamics and the course of early recovery are radically different from the changes of indicators under dynamic loading. In persons with a normodynamic type of reaction to dynamic load, there are no significant changes in the minute volume of blood at a similar volume of active muscle mass static load. Meeting the metabolic needs of working skeletal muscles and compensating for the oxygen debt is realized by increasing the total peripheral vascular resistance and increasing systolic blood pressure in the postpartum period. The physiological meaning of this phenomenon is to maintain a sufficient level of venous return of blood to ensure the pumping function of the heart.

Analysis of Central Hemodynamic Parameters in Medical Students during the Pre-Examination Study Period

2021 ◽  
pp. 67-73
Author(s):  
VA Belyayeva
Keyword(s):  
Body Mass Index ◽  
Heart Rate ◽  
Medical Students ◽  
Cardiovascular System ◽  
Body Mass ◽  
Circulatory System ◽  
The Body ◽  
Hemodynamic Parameters ◽  
Adaptive Potential ◽  
Central Hemodynamic

Background: One of the main negative factors of the educational environment is the increased stress impact on the cardiovascular system of students preparing for examinations. The cumulative effect of a long-term, systematic exposure to stressors may be accompanied by impaired mental and somatic health of students. The extent of response to stress is individual; it is usually determined by cardiovascular health and a complex of psychophysiological characteristics of the body. Objective: To study the main parameters of central hemodynamics in medical students depending on the body mass index and adaptive potential in the pre-examination study period Materials and methods: In spring–summer 2019, 170 medical students (young men and women aged 20.4 ± 0.3 years) with different adaptive potential of the circulatory system were surveyed during a pre-exam study period to establish their anthropometric indicators, blood pressure and heart rate and to further estimate the body mass index and the main central hemodynamics parameters. Results: The average heart rate of students during the pre-exam study period was 85.4 ± 12.21 beats per minute. The level of metabolic and energy processes in the myocardium was characterized as moderate with a tendency to insufficient functional capacity of the cardiovascular system (CI = 90.4 ± 1.22). Significant differences were revealed in a number of parameters un-der study depending on gender, body mass index (F = 3.99; p = 0.00890) and the adaptive potential of the circulatory system (F = 23.08; p = 0.00000). Conclusions: In the pre-examination study period, both the heart rate and the Kerdo index among the students were elevated, which indicates the predominance of sympathetic autonomic stress. The students with tense adaptation mechanisms demonstrated higher values of certain hemodynamic parameters. The pulse pressure and the Robinson index were higher in overweight students compared to their peers with a normal body mass index. None of the students with class 1 obesity had a satisfactory level of adaptation of the circulatory system. The analysis of central hemodynamic parameters enables the assessment of tolerance of the cardiovascular system of students to the burden of learning.

scholarly journals Dynamics of the functional state of the body of young athletes practicing sports games

2021 ◽  
Vol 100 (3) ◽  
pp. 268-273
Author(s):  
Serghei I. Cebanu ◽  
Raisa D. Deleu ◽  
Alisa V. Tabîrța ◽  
Ovidiu I. Tafuni ◽  
Grigore E. Friptuleac
Keyword(s):  
Blood Pressure ◽  
Arterial Pressure ◽  
Cardiovascular System ◽  
Functional State ◽  
Peripheral Resistance ◽  
Systolic Pressure ◽  
The Body ◽  
Motor Reaction ◽  
Young Athletes ◽  
Functional Changes

Introduction. Maintaining and strengthening young athletes’ health is very important since a growing body is more sensitive than an adult one. The overload on young athletes’ bodies’ functional systems is much higher compared to their peers who do not engage in intense physical activities and sports. This study aimed to assess the functional changes in the body of young athletes practicing sports games in the training process. Materials and methods. The functional state of the body of young athletes practicing five types of sports (volleyball, basketball, football, tennis, and handball) was studied on a representative group of 94 people, of which 50 (53.2%) males and 44 (46.8%) females with an average age of 17.7 ± 0.19 years. The cardiovascular system, central nervous system, respiratory system, and musculoskeletal system were investigated. The functional state assessment was carried out, taking into account the degree and direction of changes in the dynamics of training of individual indicators and integral indicators. It was determined the degree of risk of developing adverse functional changes. To identify premorbid states, we establish the type of self-regulation of blood circulation. Results. The obtained results in this study indicate that significant changes express the biological significance of the response of athletes to the conditions of training in the indices of the functions of the cardiovascular and central nervous systems and the musculoskeletal system. The indices of the functional state of the young athletes’ body at the end of the training changed in both directions. The degree of their severity fluctuated within limits from little too clearly expressed values. On the part of the cardiovascular system, an acceleration of heart rate from 60.1 ± 0.93 to 123.1 ± 0.93 beats/min (p < 0.001) was noted, an increase of systolic blood pressure from 101.1 ± 2.84 to 129.2 ± 1.40 mm Hg. (p <0.001), diastolic arterial pressure from 65.8 ± 1.60 to 76.3 ± 1.20 mm Hg. (p < 0.001), pulse pressure from 33.5 ± 2.35 to 71.5 ± 0.85 mm Hg. (p < 0.001), systolic pressure from 78.3 ± 1.75 to 84.2 ± 1.06 ml (p < 0.001), minutes volume from 4.3 ± 0.22 to 10.3 ± 0.11 l (p < 0.001), total peripheral resistance from 934.2 ± 42.11 to 1646.4 ± 37.61 dyn•s/cm5 (p < 0.001). On the part of the central nervous system, there was an increase in visual motor reaction from 236 ± 20.0 to 389 ± 5.3 ms (p < 0.001) and the auditory-motor reaction from 160 ± 3.8 to 256 ± 7.7 ms (p < 0.001). Young athletes who play volleyball have a higher load on the cardiovascular system. Functional changes are more pronounced in female athletes. The risk of developing unfavorable functional changes was noted for 15 physiological indices. The relative risk varied within 1.03-2.45 for boys and 1.04-2.90 for girls. The most pronounced risk is characteristic for total peripheral resistance (RR = 1.60), minutes volume (RR = 1.58), systolic pressure (RR = 1.55) in boys and systolic pressure (RR = 2.35), minutes volume (RR = 2.21), systolic arterial pressure (RR = 1.75), diastolic arterial pressure (RR = 1.73) and peripheral blood pressure (RR = 1.52) in girls. Conclusions. When playing sports games, a specific professional environment for different types of sports games is formed, this harming the functional state, performance, and health of young athletes.

The circulatory system

2020 ◽  
Vol 14 (11) ◽  
pp. 548-553
Author(s):  
Ian Peate
Keyword(s):  
Cardiovascular System ◽  
Circulatory System ◽  
The Body ◽  
Body System ◽  
Effective Care ◽  
Other Substances

The circulatory system transports blood around the body. The blood carries a number of other substances needed by the body to function effectively; the cardiovascular system keeps life pumping through the body. This article offers an overview of this essential body system. It is vital to understanding the various functions of the cardiovascular system, along with its various pathways of veins, arteries and capillaries when providing people with safe and effective care. A glossary of terms has been included. A short quiz at the end of the article has been provided to encourage recall and learning.

The circulatory system

2013 ◽  
Author(s):  
Martin E. Atkinson
Keyword(s):  
Cardiovascular System ◽  
Pulmonary Circulation ◽  
Circulatory System ◽  
Systemic Circulation ◽  
Vital Role ◽  
The Body ◽  
Two Systems ◽  
Thin Walled ◽  
Lower Loop ◽  
Muscular Pump

The circulatory system has two interrelated, but distinct parts, the cardiovascular system which circulates blood around the body and the lymphatic system which returns excess fluid from the tissues to the cardiovascular system. The function of the cardiovascular system is to oxygenate blood in the lungs and distribute the oxygenated blood to the tissues of the body. At the same time, carbon dioxide that accumulates as a result of metabolism of oxygen within the tissues is removed from the tissues and transported to the lungs where it is released from the blood and exhaled. The cardiovascular system comprises the heart, a muscular pump, and blood vessels. Arteries convey blood to thin-walled capillaries where gaseous exchange takes place and veins return blood to the heart. The cardiovascular system is often described as two parallel systems; the pulmonary circulation moves blood through the lungs and the systemic circulation circulates blood through the body. Trace the circulation of blood through the two systems in Figure 4.1 by following the arrows from the side of the heart coloured red. It follows a figure-of-eight (8) pattern with the two systems interlinked at the heart, the upper loop representing the pulmonary circulation and the lower loop the systemic circulation. The heart is a muscular pump driving blood at considerable pressure through arteries that get progressively smaller in both circulations until capillaries are reached. Arteries are sometimes dismissed as mere plumbing, but they play a vital role in regulating the blood flow through organs and tissues. Capillary walls are only one cell thick, allowing for the efficient diffusion of gases and small nutrient molecules to and from tissues. Waste gases and metabolites are also returned to the circulatory system through capillaries and these unite to form veins carrying blood under comparatively low pressure back to the heart. The heart comprises two muscular pumps arranged in parallel and beating in unison. As you can see in Figure 4.1, these two pumps are designated as the right and left sides of the heart. Each pump consists of two chambers, a thin-walled atrium that receives blood from one or other circulation and a thick-walled ventricle that ejects blood into the circulations.

Physiologically assessing the functional state of the body of doctors in children's medical organizations

2020 ◽  
Vol 60 (11) ◽  
pp. 775-777
Author(s):  
Anna V. Zayitceva ◽  
Khistina T. Oniani
Keyword(s):  
Cardiovascular System ◽  
Shift Work ◽  
Functional State ◽  
Night Shift ◽  
Circulatory System ◽  
Holter Monitoring ◽  
The Body ◽  
Pronounced Increase ◽  
Functional Capabilities ◽  
Shift Work Schedule

Introduction. Increased nervous and emotional loads in doctors of children's medical organizations are caused by frequent stressful effects, shift work mode. The study of the features of the formation of the functional state of the body of surgeons will make it possible to scientifically justify measures to prevent overstrain to preserve the health of employees. The aim of study is to research the functional state of the body of doctors of children's medical organizations with a shift work schedule to justify and develop measures for physiological and hygienic optimization of work. Materials and methods. Complex physiological and hygienic studies included occupational analysis of labor activity, physiological studies of the state of the Central nervous system (CNS) and the cardiovascular system with the study of the features of response to functional loads (ECG recording on a 12-channel electrocardiograph and continuously using Holter monitoring). Results. The study of the features and degree of adequacy of the cardiovascular system's response to dosed physical activity revealed the tension of the regulatory mechanisms of the circulatory system with a pronounced increase in heart activity in surgeons during night hours. Conclusions. Stable indicators of CNS functions (concentration of attention, etc.) were established during various shifts, due to the requirements of the work itself, adverse changes in the cardiovascular system, more pronounced during the night shift, deterioration of ECG changes to functional load, which indicates a decrease in the functional capabilities of the myocardium.

scholarly journals The pharmacology of antihypertensive medicines

2020 ◽  
Vol 19 (2) ◽  
pp. 75-88
Author(s):  
V. A. Tsyrlin
Keyword(s):  
Blood Pressure ◽  
Vascular Tone ◽  
Peripheral Resistance ◽  
Blood Pressure Level ◽  
Circulatory System ◽  
Systemic Blood Pressure ◽  
Minute Volume ◽  
System Functioning ◽  
Regulation Mechanisms ◽  
Human Cardiovascular System

The lecture presents contemporary view on the human cardiovascular system organization. The mechanisms determining the systemic blood pressure level are shown; the factors regulating minute volume of blood circulation and peripheral resistance to blood flow are described. The mechanisms of neurogenic and basal vascular tone are noted, the role of humoral and endothelial regulation mechanisms of the artery lumen s is indicated. Based on the recent evidences of the circulatory system functioning, we gave a description of the main medicinal compounds used in clinical practice to decrease blood pressure. The pharmacological drugs decreasing neurogenic vascular tone and inhibiting basal vascular tone are indicated. The data of drug action, its pharmacodynamics and basic principles of combined use for the rational treatment of hypertension are presented. The lecture may be interesting to physiologists, pharmacologists, cardiologists, therapists, medical students and clinical residents.

Study of functional state of microcirculatory channel system in periodontal tissues in persons of different age groups

2020 ◽  
Vol 20 (2) ◽  
pp. 88-94
Author(s):  
L. Yu. Orekhova ◽  
A. A. Petrov ◽  
E. S. Loboda ◽  
I. V. Berezkina ◽  
K. V. Shadrina
Keyword(s):  
Functional State ◽  
Age Groups ◽  
Peripheral Resistance ◽  
Circulatory System ◽  
Structural Features ◽  
Periodontal Tissues ◽  
Non Invasive ◽  
Age Related ◽  
Group 12 ◽  
Therapeutic Measures

Relevance. The study of age-related features of microcirculation in periodontal tissues, using non-invasive functional research methods, allows us to develop the optimal range of therapeutic measures, as well as form a “personalized therapeutic case”.Purpose. Study of the functional state of the microvasculature in the tissues of the parodont in individuals of various age groups.Materials and methods. A standard dental examination of 80 patients was carried out, the sample of participants was ranked in 4 groups by age: 1 group – 12 years old, 2 group – 15 years old, 3 group – from 16 to 18 years old, 4 group – from 22 to 24 years old. Hygiene and periodontal indices were determined for all patients, such as papillarymarginal-alveolar (PMA) in the Parma modification, the Mulleman bleeding index in the Cowell modification (SBI), and the simplified Green Vermillion index of oral hygiene (OHI–s), caries intensity indicators for a permanent bite (CPI), as well as ultrasound dopplerography of periodontal tissues using the apparatus "Minimax-Doppler-K".Results. When studying microcirculation in periodontal tissues, distinctive characteristics of linear (Vas) and volumetric (Qas) blood flow rates, as well as indicators of pulsation indices (PI) and peripheral resistance (RI) in people of different age groups were recorded.Conclusions. This study confirms the presence of various hemodynamic indicators of periodontal tissues in the studied groups, which is due to structural features of the circulatory system in age periods.

DEVELOPMENT OF A DEVICE FOR CONTROL OF THE STATE OF THE ORGANISM BASED ON PHOTOPLETISMOGRAPHY USING TECHNOLOGIES OF DIGITAL ADAPTIVE FILTRATION

2020 ◽  
pp. 100-107
Author(s):  
Алексей Дмитриевич Акишин ◽  
Иван Павлович Семчук ◽  
Александр Петрович Николаев
Keyword(s):  
Heart Rate ◽  
Cardiovascular System ◽  
Adaptive Filtering ◽  
Least Squares Method ◽  
Optimal Algorithm ◽  
Heart Diseases ◽  
Cardiac Activity ◽  
Motion Artifacts ◽  
The Body ◽  
Advantages And Disadvantages

Постоянно растущий интерес к разработке новых неинвазивных и безманжетных методов измерения параметров сердечной деятельности, использование которых давало бы возможность непрерывного и удаленного контроля сердечно-сосудистой системы, обуславливает актуальность данной работы. В многочисленных публикациях продолжаются обсуждения преимуществ и недостатков различных методов ранней диагностики сердечно-сосудистых заболеваний. Однако артефакты движения являются сильной помехой, мешающей точной оценке показателей функционирования сердечно-сосудистой системы. Одним из перспективных методов контроля является метод оценки физиологических параметров с использованием фотоплетизмографии. Данная статья посвящена разработке устройства для фотоплетизмографических исследований и алгоритмических методов обработки регистрируемых сигналов для обеспечения мониторинга сердечного ритма с заданной точностью. В работе используются технологии цифровой адаптивной фильтрации полученных сигналов для мониторинга сердечного ритма в условиях внешних механических и электрических помеховых воздействий, ухудшающих точностные характеристики системы, а также разработана архитектура системы и изготовлен макет устройства, который позволил провести измерения для определения оптимального алгоритма цифровой обработки сигналов. При использовании устройства применялись методы адаптивной фильтрации на основе фильтров Винера, фильтров на основе метода наименьших квадратов и Калмановской фильтрации. Разработанное устройство для фотоплетизмографических исследований обеспечило возможность мониторинга сердечного ритма с заданной точностью, контроля текущего состояния организма и может быть использовано в качестве средства диагностики заболеваний сердца The constantly growing interest in the development of new non-invasive and cuff-free methods for measuring the parameters of cardiac activity, the use of which would give the possibility of continuous and remote monitoring of the cardiovascular system, determines the relevance of this work. Numerous publications continue to discuss the advantages and disadvantages of various methods of early diagnosis of cardiovascular disease. However, motion artifacts are a strong hindrance to the accurate assessment of the performance of the cardiovascular system. One of the promising control methods is the method for assessing physiological parameters using photoplethysmography. This article is devoted to the development of a device for photoplethysmographic studies and algorithmic methods for processing recorded signals to ensure monitoring of the heart rate with a given accuracy. The work uses technologies of digital adaptive filtering of the received signals to monitor the heart rate in conditions of external mechanical and electrical interference, which worsen the accuracy characteristics of the system, as well as the architecture of the system and a prototype of the device, which made it possible to carry out measurements to determine the optimal algorithm for digital signal processing. When using the device, the methods of adaptive filtering based on Wiener filters, filters based on the least squares method and Kalman filtering were used. The developed device for photoplethysmographic studies provided the ability to monitor the heart rate with a given accuracy, control the current state of the body and can be used as a means of diagnosing heart diseases

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