Biomedical subjects
Publications and source records attributed to F A Shcherbina.
The authors analyse efficiency of various approaches to evaluation of vegetative balance in submariners and fishing sailors. The article covers suggestions of approaches to regulate parameters of vegetative balance, considerations of some features forming averages of studied values in sailors. The authors recommend evaluation of vegetative tone through description of regulatory mechanisms strain.
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The present study has analyzed a cardiovascular response in the sailors of a ship's crew (n = 23) on board the large self-reacting trawler "Konstantin Dushenov" during a fish-catching translatitudinal voyage for 5 months (181 days). The nonspecific mechanisms of adaptation in the seamen during long-term voyages are found to form by activating the central outlines of controlling. With the general trend for the activity of the sympathetic nervous system to decrease during the voyage, latter manifested itself under loads in a working cycle, by demonstrating the preserved responsiveness of the body in the sailors. By analyzing the results of the study, the authors show that there are the correlations between the parameters kept in mind, which allow the mechanisms of adjustment to be studied. The paper presents the results of informational simulation of correlation matrices with their high level of generalization where the time of course of adaptive changes to working conditions is demonstrated.
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Central hemodynamics was examined in members of 5 crews on 75- to 167-d voyages in different areas of the world ocean (1496 observations). Also, 461 observations were made in a nuclear submarine on a 73-d submerged cruise. As a result of testing the fidelity of Myznikov's index (MI = SBP/DBP (HR). levels of the seaman's body functional activity was quantified by isolating sigma corridors. In approximately 70% of the seamen in both groups the body functional activity was moderate. Low functional activity was 1.9 times and very high functional activity--1.9 times less often among submariners as compared with the surface crew which means inequality in the physiological activity of the seamen. From these results we deduce that MI can be instrumental in monitoring adaptation to the sea duties as it permits determine the physiological adaptability of seamen and dynamics of the body adjustment.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.