Collection Occupational hygiene, Issue 20, 1984 year

Relationship between the labor efficiency of power plant operators and their psychophysiological characteristics

V.A. Buzunov, V.V., Kalnish, A.P. Khomik

doi

Kiev Research Institute of Occupational Hygiene and Occupational Diseases

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The work of the operators of the block control panels of the GRES is characterized by great responsibility. The effectiveness of the work is due to the current functional state of the person. According to individual authors, a fairly complete definition of the functional state of the human body involves not only expanding the number of recorded indicators, but also "the search for adequate ways to represent them using generalized indicators" [3]. Only a systematic, meaningful selection of complementary, most informative parameters can significantly increase our knowledge of the studied curve system.
The purpose of this work is to identify the system of the most informative physiological indicators associated with the efficiency of the operator's work in industrial production.
Numerous psychophysiological techniques were used to characterize the functional state of the sherators' organism. Additionally, we used statistical indicators reflecting various aspects of the studied physiological phenomena: their level, spread, direction and intensity of change in time, as well as integral estimates, taking into account the structure of variation of physiological indicators during the shift.

F1 - factor of intellectual tension;
F2 - factor of physical stress;
ET is an indicator of labor productivity of power unit operators

Using the method of multiple regression analysis, a model of the selected factors was built with indicators of labor efficiency. For this, the obtained principal components were expressed in terms of the initial variables [2], and then a regression model was built. The multiple correlation coefficient of the F1 and F2 factors with ET was 0.35 (P <0.05). The calculated model was used to build a graph of the dependence of operators' labor efficiency on generalized physiological factors.
Analysis of the influence of the identified physiological factors on the labor efficiency of operators of block control panels showed that with the help of the available equipment it is possible to increase labor productivity with a decrease in factor F1 and a certain increase in the value of factor F2. At the same time, a decrease in F1 does not mean a deterioration in psychophysiological functions, but it is primarily about stabilization of the operator's functional state during the shift.
The use of statistical methods allows you to choose the most informative complex of psychophysiological indicators, reduce the random component and assess the degree of connection of the selected parameters with the production activity of a person, outline ways to increase labor efficiency.

References

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  2. Ivanova V. M., Kalinina V. N., Neshumova L. A., Reshetnikova I. O. Matematicheskaya statistika. — M.: Vysshaya shkola, 1981, — 368 s.
  3. Leonova A. B., Medvedev V. I. Funktsional`noye sostoyaniye cheloveka v trudovoy deyatel'nosti. — M., 1981.— 111 s.
  4. Mezhzherin V. A., Kal`nish V. V., Ishchenko A. I. Yedinstvo fenotipicheskikh proyavleniy v geneticheski razlichnykh gruppakh zhivykh organizmov. — Dokl. AN SSSR, 1975, 225, № 1, s. 205—206.