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

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.

1. Baevsky R.M., Ivanov G.G., Chireikin L.V. et al. Analysis of heart rate variability with the use of various electrocardiographic systems: methodical recommendations. Vestnik aritmologii. 2001; 24: 65–87 (in Russian).

2. Setko N.P., Setko A.G., Nasmiev M.A., Lutoshkina A.S. Methodical approaches to the assessment of the functional state of organs and systems working in predicting individual occupational. Okhrana truda i tekhnika bezopasnosti v uchrezhdeniyakh zdravookhraneniya. 2012; 1: 33–7 (in Russian).

3. Movergoz S.V., Setko N.P., Bulycheva E.V. Assessment of occupational health risks of petrochemical operators and their physiological and hygienic conditionality. Gigiena i sanitariya. 2016; 10 (95): 1002–7 (in Russian).

4. Moroz M.P. Express diagnostics of the working capacity and functional state of a person. M.P. Moroz. SPb.: IMATON; 2001 (in Russian).

5. Igisheva L.N., Galeev A.R. Complex ORTO-expert as a component of health-saving technologies in educational institutions. Methodical guidance. Kemerovo; 2003 (in Russian).

6. Zaitsev V.M., Liflyandsky V.G., Marinkin V.I. Applied Medical Statistics: Textbook. Benefit. St. Petersburg: Foliant; 2006.

7. Pokrovsky V.M. Formation of the rhythm of the heart in the human body and animals. Krasnodar: Publishing house “KubanKniga”, 2007 (in Russian).

8. Kartapoltseva N.V. The general laws of the lesion of the central and peripheral nervous system under the action of physical factors (local vibration and noise) on the working organism. Acta Biomedica Scientifica. 2012; 2–1: 40–4 (in Russian).

9. Pogonysheva I.A., Pogonyshev D.A., Krylova A.A. The influence of noise on psychophysiological parameters and the capacity of the human body. Vestnik NVNGU. 2015; 1: 87–93 (in Russian).

10. Reshetnikov М.М., Baranov Yu.A., Mukhin A.P., Chermyakin S.V. Psychophysiological aspects of the state, behavior and activity of people in the outbreaks of natural disasters and catastrophes. Voenno-meditsinskij zhurnal. 1991; 9: 11–6 (in Russian).

11. Yakhno N.N., Shtulman D.R., Melnichuk P.V. et al. Diseases of the nervous system. a guide for doctors. M.: Meditsina; 1995 (in Russian).