scholarly journals Longitudinal sstudy of differences between functional state of the body in workers at the chrysotile asbestos plant

2019 ◽  
Vol 95 (10) ◽  
pp. 961-965
Author(s):  
Serik A. Ibraev ◽  
Yu. N. Pankin ◽  
Sh. S. Koygeldinova ◽  
E. Zh. Otarov ◽  
Zh. Zh. Zharylkasyn ◽  
...  
Keyword(s):  
Functional State ◽  
Work Experience ◽  
Test Group ◽  
The Body ◽  
Occupational Hazard ◽  
Chrysotile Asbestos ◽  
Length Of Service ◽  
Schedule Time ◽  
Under Construction ◽  
Different Levels

There were performed biochemical and cytological studies of blood in healthy workers of chrysotile asbestos plant in order to determine the functional state of the body, depending on the length of service and working conditions. Mentioned differences between the functional state of the organism were determined in the longitudinal study, under construction on schedule time series with the test group at specified intervals (every year for 7 years surveyed, the same group of healthy workers). The differences between the indices allow one to discriminate different levels of the functional state of the organism for the workers employed at processing complex with experience of 4 and 5 years, and for the employees in the mining and transport workshop with the experience of 5 and 6 years. As a result the work experience of 5 years is considered to be an occupational hazard for workers at processing complex, and 6 years of experience - as an occupational hazard for workers of mining and transport workshop.

THE USE OF HEART RATE TELEMETRY FOR DYNAMIC CONTROL OF THE FUNCTIONAL STATE DURING COMPUTER TESTING AND BIOFEEDBACK IN KNOWLEDGE WORKERS

2021 ◽  
Author(s):  
M.M. Nekrasova ◽  
◽  
I.V. Fedotova ◽  
S.A. Polevaya ◽  
Keyword(s):  
Heart Rate ◽  
Functional State ◽  
Work Experience ◽  
Knowledge Workers ◽  
Management Strategies ◽  
Dynamic Control ◽  
The Body ◽  
Biofeedback Training ◽  
Total Power ◽  
Neurohumoral Regulation

Abstract: Introduction. Increasing information loads can lead to the development of professional stress and work-related illnesses in knowledge workers. The development and implementation of modern methods of control and correction of the functional state of employees in the conditions of activity is relevant. The study aims – to explore the dynamics of the functional state of knowledge workers in the conditions of modeling the cognitive load on the computer and during the training on neurofeedback (NFB) based on the parameters of the electroencephalogram (EEG). Materials and methods. 17 researchers (4 men and 13 women aged 22-63 years (34.8±3.4), with an average work experience of 12.1±3.3 years) participated in the study on the basis of voluntary informed consent. Results. A significant increase in the index of the alpha rhythm was shown by 29.4% of the subjects. It was found that the total power of the spectrum of heart rate variability (HRV) is higher, the adaptive risk is lower in the group that successfully passed alpha training (p<0.05). According to the results of continuous personalized heart rate telemetry, the dynamics of the functional state (FS) during the examination was determined for each subject. Conclusion. A significant influence of the state of neurohumoral regulation systems and adaptive reserves of the body on the success of the biofeedback training was established, which is the basis for the development of methodological approaches to the correction of FS, taking into account individual optimal management strategies.

Features of the functional state of professionally significant body systems of operators and machinists of a petrochemical enterprise depending on their work experience

2020 ◽  
pp. 25-29
Author(s):  
N. P. Setko ◽  
S. V. Movergoz ◽  
E. V. Bulycheva
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Functional State ◽  
The Body ◽  
Working Capacity ◽  
Length Of Service ◽  
Physiological Functions ◽  
Conflict Of Interests ◽  
Autonomic Nervous ◽  
Petrochemical Enterprise

Introduction. As a result of large-scale modernization of technological processes, the organism of workers in the petrochemical industry is affected by low intensity factors. With an increase in exposure time under the influence of such factors, the response of the body is characterized by various changes in physiological status, however, until now, medical examinations of workers in petrochemical enterprises have a clinical focus. In this regard, it becomes extremely important to systematically study the physiological functions of workers, considering their working experience for early detection of the adverse effects of the work environment and the development of effective preventive measures.The aim of the study is to evaluate the features of the functional state of the organism of operators and operators of a petrochemical enterprise, depending on the length of service.Materials and methods. To identify the features of the functional state of the body, 78 operators and 68 drivers, depending on the length of service, were divided into three subgroups. The functional state of the central, autonomic nervous and cardiovascular systems was studied, and the level of biological adaptation and working capacity of workers were determined. The functional state of the central nervous system is assessed by indicators of the functional level of the nervous system, the stability of the nervous reaction, the level of functionality of the formed functional system and the level of performance on the hardware-soft ware complex.Results. It was revealed that with an increase in seniority, the operators of the petrochemical enterprise changed the indicators of the functional state of the body, as evidenced by a decrease in the time of simple visual-motor reaction by 1.5 times, an increase in the rates of sympathetic activity of the autonomic nervous system by 1.7 times, and an increase in 1.4 times the adequacy of regulation processes against a 1.7-fold increase in the vegetative rhythm indicator, which characterize increased disorganization in the intersystem interactions of central and an independent contour of regulation of physiological functions. With an increase in seniority, typists noted an increase in the parasympathetic activity of the autonomic nervous system by 1.3 times, as well as an increase in the autonomic regulation rate by 1.2 times, which indicates a strengthening of the autonomous regulation loop by physiological functions.Conclusions. The workers of the main professions of the petrochemical enterprise with an increase in their seniority noted the development of long-term adaptation, which is confirmed by a decrease in the number of workers with an unsatisfactory level of adaptation and an increase in operators and drivers with a normal level of working capacity.Funding. The study had no funding.Conflict of interests. The authors declare no conflict of interests.

scholarly journals Research of a Functional State of Cardiovascular and Muscular Systems of Female Greenhouse Workers during the Work Shift

2020 ◽  
pp. 53-58
Author(s):  
LA Yatsenko ◽  
NP Mamchik ◽  
NV Gabbasova
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Muscle Strength ◽  
Functional State ◽  
Work Experience ◽  
The Body ◽  
Right Hand ◽  
Greenhouse Vegetable ◽  
Greenhouse Workers ◽  
The Right

Introduction: The number of greenhouse vegetable businesses has been increasing recently. Most tasks in the greenhouses are still done manually and associated with physical stress. Our objective was to study characteristics of the circulatory and muscular systems of female greenhouse workers in the course of their work and depending on the length of service at the enterprise. The materials included some indices of the functional state of the organism of greenhouse workers growing vegetables such as the heart rate, systolic and diastolic blood pressure, muscle strength and endurance of the right hand in the process of harvesting and removing plant debris. The statistical data processing was performed using the Microsoft Excel 2016 software. The results of the study showed that the work of greenhouse vegetable growers caused gradual changes in the functioning of the cardiovascular and neuromuscular systems of the body. The most significant increase in the heart rate and blood pressure and the decrease in muscle strength and endurance were observed among the greenhouse workers with 15 or more years of work experience. We also observed a significant decrease in muscle strength of the right hand among the workers with the shortest record of service (< 5 years). The study of the functional state of the cardiovascular and muscular systems helped establish the most potentially efficient group of greenhouse vegetable growers: the smallest fluctuations of the measured indices were observed in the women with 6-9 years of service. Conclusions: Our findings prove the necessity of systematic science-based measures of disease prevention in female greenhouse employees.

scholarly journals Methodological approaches to the integrated evaluation of the exposure and length of service in the occupational risk assessment

2019 ◽  
Vol 95 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Dmitriy M. Shlyapnikov ◽  
P. Z. Shur ◽  
V. B. Alekseev ◽  
T. M. Lebedeva ◽  
V. G. Kostarev
Keyword(s):  
Risk Assessment ◽  
Work Experience ◽  
Underground Mining ◽  
Circulatory System ◽  
Response Probability ◽  
Epidemiological Studies ◽  
The Body ◽  
Occupational Risk ◽  
Quantitative Risk Assessment ◽  
Length Of Service

Methodical approaches to the integrated evaluation of the exposure and length of service in occupational risk assessment have been proposed. There are: the identification of hazards with a specific assessment of working conditions; the establishment of the occupational dependence of the health disorders in workers on the base of the results of epidemiological studies; quantitative risk assessment, taking into account the work experience factor on the basis of a mathematical model “exposure - work experience - response probability”; the establishment of quantitative risk characteristics, taking into account the dynamics of changes in health status over time, as well as the assessment of an integral risk of accumulation of the body functional disorders on the basis of the risk evolution modeling. When testing an integrated risk assessment approach for the workers occupied in underground mining, there was revealed the occupational dependence both for respiratory diseases (RR = 1.75) and disorders of the circulatory system (RR = up to 1.69). The work experience determination of the occupationally chronic rhinitis and rhinopharyngitis (J30- J31) has been established as well as the predictable probability of the development of hypertension after 5 working years as 0,094, after 10 years -0,179 has been detected. The risk of health problems under exposure to occupational factors becomes unacceptable (R) by 45 years. In this the risk for the occurrence of the circulatory disorders is critical.

Dynamical Peculiarities of Concatenational Changes in Functional Cardiovascular Parameters

2018 ◽  
Vol 3 (82) ◽  
Author(s):  
Eurelija Venskaitytė ◽  
Jonas Poderys ◽  
Tadas Česnaitis
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Functional State ◽  
The Body ◽  
Functional Changes ◽  
High Intensity Training ◽  
Series Analysis ◽  
Greco Roman ◽  
St Segment ◽  
Standard Lead

Research  background  and  hypothesis.  Traditional  time  series  analysis  techniques,  which  are  also  used  for the analysis of cardiovascular signals, do not reveal the relationship between the  changes in the indices recorded associated with the multiscale and chaotic structure of the tested object, which allows establishing short-and long-term structural and functional changes.Research aim was to reveal the dynamical peculiarities of interactions of cardiovascular system indices while evaluating the functional state of track-and-field athletes and Greco-Roman wrestlers.Research methods. Twenty two subjects participated in the study, their average age of 23.5 ± 1.7 years. During the study standard 12 lead electrocardiograms (ECG) were recorded. The following ECG parameters were used in the study: duration of RR interval taken from the II standard lead, duration of QRS complex, duration of JT interval and amplitude of ST segment taken from the V standard lead.Research  results.  Significant  differences  were  found  between  inter-parametric  connections  of  ST  segment amplitude and JT interval duration at the pre and post-training testing. Observed changes at different hierarchical levels of the body systems revealed inadequate cardiac metabolic processes, leading to changes in the metabolic rate of the myocardium and reflected in the dynamics of all investigated interactions.Discussion and conclusions. It has been found that peculiarities of the interactions of ECG indices interactions show the exposure of the  functional changes in the body at the onset of the workload. The alterations of the functional state of the body and the signs of fatigue, after athletes performed two high intensity training sessions per day, can be assessed using the approach of the evaluation of interactions between functional variables. Therefore the evaluation of the interactions of physiological signals by using time series analysis methods is suitable for the observation of these processes and the functional state of the body.Keywords: electrocardiogram, time series, functional state.

Influence of DAFS-25+polizon composition on blood and functional state of liver of steers at fattening

2020 ◽  
pp. 15-18
Author(s):  
Inna R. Kilmetova ◽  
◽  
Igor A. Rodin ◽  
Nazira I. Khayrullina ◽  
Nikolay G. Fenchenko ◽  
...  
Keyword(s):  
Functional State ◽  
White Blood Cells ◽  
Live Weight ◽  
The Body ◽  
Farm Animals ◽  
Control Group ◽  
Standard Diet ◽  
The Impact ◽  
Experimental Group ◽  
Stimulation Of

Summary. The disbalanced feeding and the uneven distribution of micro- and macroelements in the environment leads to a trace element, in particular hypomelanosis. To accelerate the growth and preservation of young farm animals include in the diet of various biological additives and drugs, which include selenium. For stimulation of weight gain in the livestock industry, as well as for the prevention and treatment of pathological processes in addition to micro - and macrouse amino acids, primarily methionine. The aim of this work was to study the influence of composition of DAFS-25+Polizon on morpho-biochemical parameters of blood and functional state of the liver in fattening bulls of black-motley breed in the conditions of the Republic of Bashkortostan. Experiments using were conducted on bull-calves of black-motley breed of the properties in the properties age from 6 to 15 months. The first experimental group during the experiment was additionally given the composition of DAFS-25+Polizon at a dose of 2 mg/kg, the animals of the control group received a standard diet. To assess the impact of the composition DAFS-25+Polizon on metabolism cattle studied morphological and biochemical indicators of blood and conducted histological examination of the liver. It is established that the use of the composition of DAFS-25+Polizon at a dose of 2 mg/kg increases the number of erythrocytes and hemoglobin in the experimental group and reduces the amount of white blood cells. The serum content of total protein, phosphorus and calcium increases in the group of experimental animals. Microscopic examination of the liver revealed no changes in the structure of the organ and hepatocytes in the experimental group, whereas in the control group hemodynamic disorders and dystrophic changes in liver cells were observed. Thus, the use of the composition DAFS-25+Polizon at a dose of 2 mg/kg of live weight in fattening bulls black-and-white breed contributes to the increase of redox processes in the body, stimulation of metabolism, prevent the development of liver disorders of cellular mechanisms of metabolism, optimizes the structure of the liver, which generally provides higher productivity.

Physiological and Hereditary Hyperbilirubinemia in Athletes: Role in Reducing Efficiency and Correction Methodology

2020 ◽  
Vol 5 (5) ◽  
pp. 386-393
Author(s):  
L. M. Gunina ◽  
◽  
Kazys Mylashyus ◽  
Voitenko V. L. ◽  
◽  
...  
Keyword(s):  
Physical Activity ◽  
Functional State ◽  
Oxygen Demand ◽  
Diagnostic Algorithm ◽  
Drug Prevention ◽  
The Body ◽  
Erythrocyte Membranes ◽  
Pharmacological Agents ◽  
Bilirubin Metabolism ◽  
The Individual

Under high-intensity loads, the athlete's bodies take place a number of biochemical reactions and physiological processes that can lead to hyperbilirubinemia. The factors that can initiate the onset of this phenomenon include the syndrome of micro-damage muscle, violation of the integrity of erythrocyte membranes, decreased blood pH, malnutrition and increase oxygen demand of the body. Degree of expression of manifestations of physiological bilirubinemia depends on the level of adaptation of the athlete to the physical activities offered. Hyperbilirubinemia in athletes can be one of the components of the deterioration of the functional state, forming the symptoms of endogenous intoxication. The relevance of this problem in sport lies in the relatively low detection rate of hyperbilirubinemia due to the lack of regular screening studies. However, in drawing up a plan of nutritional- metabolic support for training and competitive activity and recovery measures, must not only the individual reaction of the athlete body to physical activity, but also the severity of shifts in the indicators of bilirubin metabolism and their ratio. The article describes the reasons for the increase in bilirubin levels, which can be caused by both the effect of physical activity and by the presence of pathological processes in athletes. The factors influencing the blood serum’s bilirubin content are also highlighted, which include the state of erythrocyte cell membranes and the rate of hemoglobin destruction, the functional state of the liver, the specifics of physical loads and the use of ergogenic pharmacological agents by athletes. Particular accent has been placed on the illumination of hereditary hyperbilirubinemias, which may have been detected at the stage of selection of athletes. The most common phenomenon is Gilbert's syndrome, which occurs in 2-5% of cases in the general population, is characterized in the clinic by a benign flow and is manifested by episodes of jaundice and an increase in total bilirubin content to moderate values due to indirect. The frequency of detection of hyperbilirubinemias in the population of athletes is 4.68%, among which Gilbert's disease accounts for almost half (48.7%). Conclusion. The work highlighted the pathogenesis and diagnostic algorithm of Gilbert's disease, and also emphasized that its drug prevention and correction in athletes to maintain functional and physical fitness should be carried out taking into account anti-doping rules, which requires upon diagnosis timely receipt of a therapeutic exclusion

Features of development of functional overstrain at workers of physical work

2020 ◽  
pp. 643-643
Author(s):  
A. V. Kapustina ◽  
V. V. Elizarova ◽  
O. V. Bykova
Keyword(s):  
Functional State ◽  
The Body ◽  
Physical Work ◽  
Manual Labor ◽  
Production Studies ◽  
Professional Groups

The results of the production studies of professional groups of manual labor (stone saws, packers, slingers) are presented. It is shown that a change in the functional state of the body of workers leads to the development of fatigue and overstrain of the body systems of workers.

Assessment of indicators of nervous and emotional stress in medical center personnel depending on the characteristics of their professional activity

2020 ◽  
Vol 60 (10) ◽  
pp. 650-657
Author(s):  
Irina V. Fedotova ◽  
Tatyana N. Vasilyeva ◽  
Tatyana V. Blinova ◽  
Irina A. Umnyagina ◽  
Yuliya V. Lyapina ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Emotional Stress ◽  
Functional State ◽  
Working Conditions ◽  
Medical Staff ◽  
Medical Center ◽  
The Body ◽  
Office Workers ◽  
Glutathione System ◽  
Medical Centers

Introduction. Digital technologies are actively used in the work of specialists of medical centers of various profiles, which causes the impact on employees of a number of professional factors that determine the characteristics of their work. The aim of the study is to evaluate the influence of professional factors on the functional state of the employees' body and the glutathione system as an objective indicator of stress based on the analysis of the subjective perception of the medical center employees of the specifics of working with personal computers and psychophysiological testing. Materials and methods. The study involved 109 specialists of medical centers (25 ophthalmologists, 31 representatives of the secondary medical staff - nurses and paramedics, 53 office employees). The anonymous survey concerned the assessment of working conditions and their impact on the functional state of the body of the respondents. Performance and stress tolerance indicators were evaluated using three standard questionnaires. The study of 66 subjects' levels of glutathione in the blood: total, reduced, oxidized and the ratio of reduced and oxidized - was used to analyze the relationship of the neuro-emotional nature of labor with the reaction of oxidative stress. Statistical processing of the obtained data was carried out using traditional methods of variation statistics and calculating the value of the odds ratio (OR) with a 95% confidence interval (CI). Results. The survey revealed a significant proportion of people in all groups of respondents who constantly use computer technology in their work. Describing the quality of the processed information, doctors more than representatives of other groups note its complexity, importance, negative emotional color, a high degree of responsibility and tension. Doctors more often than average medical staff and office workers associate the manifestation of fatigue with an uncomfortable state of the visual organ, nervous system, and musculoskeletal system. The subjects showed reduced performance and stress tolerance with the most pronounced negative trends in the group of doctors. Changes in the glutathione system were detected, indicating the presence of oxidative stress in 40% of ophthalmologists and office workers, and in half of nurses. Conclusions. The work of specialists of medical centers of various profiles in accordance with their assessment is characterized by high nervous and emotional stress, due to the need to process a significant amount of complex and important professionally significant information. Subjectively noted by respondents the influence of working conditions on the functional state of the body is confirmed by indicators of the glutathione system, which can be used as indicators of nervous and emotional stress.

Characteristics of the dynamics of the central nervous system and att ention function in workers of shoe production

2020 ◽  
pp. 64-68
Author(s):  
F. L. Azizova ◽  
U. A. Boltaboev
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Women Workers ◽  
Functional State ◽  
The Body ◽  
Conflict Of Interests ◽  
Professional Groups ◽  
Universal Device ◽  
The Central Nervous System ◽  
Working Day

The features of production factors established at the main workplaces of shoe production are considered. The materials on the results of the study of the functional state of the central nervous system of women workers of shoe production in the dynamics of the working day are presented. The level of functional state of the central nervous system was determined by the speed of visual and auditory-motor reactions, installed using the universal device chronoreflexometer. It was revealed that in the body of workers of shoe production there is an early development of inhibitory processes in the central nervous system, which is expressed in an increase in the number of errors when performing tasks on proofreading tables. It was found that the most pronounced shift s in auditory-motor responses were observed in professional groups, where higher levels of noise were registered in the workplace. The correlation analysis showed a close direct relationship between the growth of mistakes made in the market and the decrease in production. An increase in the time spent on the task indicates the occurrence and growth of production fatigue.Funding. The study had no funding.Conflict of interests. The authors declare no conflict of interests.

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