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

Author(s):  
N. P. Setko ◽  
S. V. Movergoz ◽  
E. V. Bulycheva

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.

Author(s):  
S. Goncharevskyi ◽  
M. Makarchuk ◽  
V. Martynyuk

Almost all processes in the human body in one way or another connected with the autonomic nervous system. That's why it is real to evaluate the functional state of the person by temperature characteristics of representative points of the autonomic nervous system. Location and information of these points are confirmed by fundamental research. However, simply measuring the temperature at some points may not be sufficient to establish any systematic changes in the human body. The establishment of such changes requires systematic assessment of interdependent significant relationships between these parameters.The main aim of our research was to study effects of myocardial infarction in the thoracic region of the autonomic nervous system. The temperature of representative areas of the thoracic autonomic nervous system we measured by infrared thermometer (Medisana FTO D-53340 , with an accuracy of 0.1 degree Celsius). Statistical analysis was conducted in the packet Statistics 10. The presence of a difference in the temperature coefficients of representative areas (p<0,05). For the left side of the spine characterized by a difference in Th1–Th5 segments, which confirms their diagnosis: Th1 – 0,931,12 (control) and -0,797,49 (experiment), Th2 – 1,571,12 and -0,486,70, Th3 – 1,582611,12325 and -0,663,36, Th4 – 0,85913 0,92611 and -1,74,64, Th5 – 0,923480,75469 and-1,615,73 respectively. For the right side of the thoracic spines: Th6 – 0,850,73 (control) and -0,797,49 (experiment), Th7 – -1,000,79 and -1,370,69, Th8 – -0,960,73 and -0,990,68, Th9 – -0,120,64 and -0,380,83, Th10 – -0,921,14 and -1,031,00, Th11 – -1,691,05 and -1,861,06, Th12- -1,651,15 and -1,961,12 respectively. We found that myocardial infarction is manifested in the thoracic spine. In an experimental group there is significant difference of temperature in all segments. We can also notice asymmetry of temperatue between the right and left side of the spine. In the test group there are a deviation from the normal temperature in the first five thoracic segments on the left side, which confirms their diagnosis. On the right side of the spine there are a deviation in the last seven segments, which may indicate the compensatory mechanisms of regulation of the system. We can observe the temperature asymmetry, which in long-term exposure can negatively affect to the body.


2020 ◽  
Vol 99 (4) ◽  
pp. 394-398
Author(s):  
Н. П. Сетко ◽  
Екатерина Владимировна Булычева ◽  
И. А. Ясин ◽  
А. Е. Апрелев

Introduction. In children and adolescents myopia in some countries already reached epidemic levels due to the growing prevalence is an urgent need for new approaches to management and search for screening indics of its development risk and key points in its stabilization. Taking into account the development and progression of myopia may be associated with autonomous influences of the nervous system, it becomes relevant to study the features of the autonomous status formation in children, depending on the presence and degree of myopia. Material and methods. The functional state of the autonomic nervous system in 380 5-10 grades students with low degree myopia (group 1), moderate myopia (group 2), and without myopia (group 3) was assessed by heart rate and central nervous system variability and mental performance using variation chronoreflexometry. Results. The maximum number (40%) was recorded in eighth grade of myopia students, 39.4% cases - in fifth grade students. An imbalance in the autonomic nervous system in schoolchildren was established to increase with growing myopic refraction. Thus, vagotonia occurred in 42.8% of students with low degree myopia, eutonia - in 42%, and sympathicotonia only in 15.2%. While in students with moderate myopia in 75% of cases the constraint of regulation systems was revealed due to excessive tone of the sympathetic part of the autonomic nervous system, which leads to uneconomic work of the cardiovascular system and a sharp decrease in the functional reserves of the body in 50% -70% of students. Conclusion. Consideration of the relationship of myopia with the autonomous status and functional state of the central nervous system offers new directions to the existing concepts of myopia management in children and adolescents of school age, which can be a starting point for solving the problem of prevention of myopia and its progression.


2020 ◽  
Vol 99 (4) ◽  
pp. 394-398
Author(s):  
N. P. Setko ◽  
Ekaterina V. Bulycheva ◽  
I. A. Yasin ◽  
A. E. Aprelev

Introduction. In children and adolescents myopia in some countries already reached epidemic levels due to the growing prevalence is an urgent need for new approaches to management and search for screening indics of its development risk and key points in its stabilization. Taking into account the development and progression of myopia may be associated with autonomous influences of the nervous system, it becomes relevant to study the features of the autonomous status formation in children, depending on the presence and degree of myopia. Material and methods. The functional state of the autonomic nervous system in 380 5-10 grades students with low degree myopia (group 1), moderate myopia (group 2), and without myopia (group 3) was assessed by heart rate and central nervous system variability and mental performance using variation chronoreflexometry. Results. The maximum number (40%) was recorded in eighth grade of myopia students, 39.4% cases - in fifth grade students. An imbalance in the autonomic nervous system in schoolchildren was established to increase with growing myopic refraction. Thus, vagotonia occurred in 42.8% of students with low degree myopia, eutonia - in 42%, and sympathicotonia only in 15.2%. While in students with moderate myopia in 75% of cases the constraint of regulation systems was revealed due to excessive tone of the sympathetic part of the autonomic nervous system, which leads to uneconomic work of the cardiovascular system and a sharp decrease in the functional reserves of the body in 50% -70% of students. Conclusion. Consideration of the relationship of myopia with the autonomous status and functional state of the central nervous system offers new directions to the existing concepts of myopia management in children and adolescents of school age, which can be a starting point for solving the problem of prevention of myopia and its progression.


Author(s):  
Vsevolod Vladimirovich Skvortsov ◽  
Ekaterina Mikhailovna Skvortsova ◽  
Dariya Nikolaevna Zadumina ◽  
Daniil Alekseevich Shtonda

Cardiointervalography is a method for assessing the state of the mechanisms of regulation of the physiological functions of the body, used in the diagnosis of lesions of the cardiovascular and autonomic nervous system. The article tells about the main reference points for general practitioners and cardiologists who are faced with the application of this method.


Author(s):  
I. O. Kalуnychenko ◽  
A. S. Kolesnyk

Introduction.Much attention is paid to the analysis of problems that arise during the initial stage of children's education in school in recent years. Preschool age is one of the sensitive and critical stages of individual development. Explicit structural and functional changes occur during this period. These changes are accompanied by an increase in the functional stress of psychovegetative mechanisms of regulation. Both psychological and physical stress are considered to be the cause of autonomic disorders. Such a provoking factor may be the beginning of school for a child. Formation of visual and auditory perception is one of the leading functions of cognitivedevelopment for older preschool children. This function provides the child's interaction with the external environment and its orientation in space. This function is also an indicator of the child's readiness for school.Therefore, the importance of studying the features of the functional state of the cardiovascular system during the audio-visual load of educational and developmental nature is relevant.Thepurposewas to study the features of autonomic regulation of heart rhythm of children 5-6 years old under conditions of cognitive load.Methods.Observation was carried out on children 5-6 years of age of preparatory groups of preschool educational institutions of the Sumy city (n = 192). We assume that changes in autonomic functions may be influenced bythe immaturity of motor-motor, visual-auditory, speech-auditory and visual-graphic components. An important component of educational and cognitive activities in preschool age is the development of reading and writing. Visual information was studied from two positions pictorial (elements of writing) and verbal (recognition of letters and words elements of reading).The method of phasography was used to study the state of the cardiovascular system. This method was used using the device "Phazagraph". This device is designed for recording and analysis of the electrocardiogram in the phase space to estimate the amplitude and speed parameters of any elements of the electrocardiogram, which allows you to accurately estimate the graph of the electrocardiogram.Results.It was found that sympathicotonia is manifested among the examined children aged 5 and 6 years during cognitive load. Activation of the sympathetic part of the autonomic nervous system occurs during writing compared to reading. That is, the adaptive mechanisms of the autonomic nervous system correspond to lower rates during writing compared to reading. The reason for this may be the immaturity of autonomous supply systems and mechanisms for their regulation and indicate an imbalance of autonomicsupply. In turn, the dominance of sympathetic influence on heart rate is accompanied by signs of dysregulation of cardiovascular functions during writing for children. The reason may be the immaturity of the functional systems of the interconnected brain areas, which is accompanied by a deterioration in the coordination of autonomic functions of the body. Originality. The idea of the formation of psychophysiological features in ontogenesis is expanded.Conclusion. A comprehensive assessment of children's adaptation to exercise was justified.


Author(s):  
F. L. Azizova ◽  
U. A. Boltaboev

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.


2018 ◽  
Author(s):  
Pedro Silva Moreira ◽  
Pedro Chaves ◽  
Nuno Dias ◽  
Patrício Costa ◽  
Pedro Rocha Almeida

Background: The search for autonomic correlates of emotional processing has been a matter of interest for the scientific community with the goal of identifying the physiological basis of emotion. Despite an extensive state-of-the-art exploring the correlates of emotion, there is no absolute consensus regarding how the body processes an affective state.Objectives: In this work, we aimed to aggregate the literature of psychophysiological studies in the context of emotional induction. Methods: For this purpose, we conducted a systematic review of the literature and a meta-analytic investigation, comparing different measures from the electrodermal, cardiovascular, respiratory and facial systems across emotional categories/dimensions. Two-hundred and ninety-one studies met the inclusion criteria and were quantitatively pooled in random-effects meta-analytic modelling. Results: Heart rate and skin conductance level were the most reported psychophysiological measures. Overall, there was a negligible differentiation between emotional categories with respect to the pooled estimates. Of note, considerable amount of between-studies’ heterogeneity was found in the meta-analytic aggregation. Self-reported ratings of emotional arousal were found to be associated with specific autonomic-nervous system (ANS) indices, particularly with the variation of the skin conductance level. Conclusions: Despite this clear association, there is still a considerable amount of unexplained variability that raises the need for more fine-grained analysis to be implemented in future research in this field.


Vision ◽  
2022 ◽  
Vol 6 (1) ◽  
pp. 6
Author(s):  
Feipeng Wu ◽  
Yin Zhao ◽  
Hong Zhang

The autonomic nervous system (ANS) confers neural control of the entire body, mainly through the sympathetic and parasympathetic nerves. Several studies have observed that the physiological functions of the eye (pupil size, lens accommodation, ocular circulation, and intraocular pressure regulation) are precisely regulated by the ANS. Almost all parts of the eye have autonomic innervation for the regulation of local homeostasis through synergy and antagonism. With the advent of new research methods, novel anatomical characteristics and numerous physiological processes have been elucidated. Herein, we summarize the anatomical and physiological functions of the ANS in the eye within the context of its intrinsic connections. This review provides novel insights into ocular studies.


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