Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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THE FACTORIAL ANALYSIS OF INDICATORS OF CEREBRAL HAEMODYNAMICS AT CHILDREN AT SINGLE IMMERSION UNDER WATER WITH THE AQUALUNG

Elokhova Y.A. 1
1 Siberian State University of Physical Culture and Sports Ministry of Sports of the Russian Federation
Results of a pilot study of interrelation of the central and cerebral haemodynamics, and also anthopometry of children of 12 years are given in this work. Results of research were processed by means of application of the factorial analysis. When carrying out the factorial analysis of indicators of cerebral haemodynamics before immersion under water three factors were allocated. The first factor had high factorial loadings on variables: time of distribution of a pulse wave (VRPV, r=0,77), dicrotic index (DIA, %: r=0,70), diastolic index (DIA, %: r=0,75), relation of amplitude of a venous and arterial component (Aven/ Aart, %: r=0,78). The indicator of venous outflow entered into the second factor (air defense, %: r = -0,86). Such indicators entered into the third factor, as the frequency of warm reductions (ChSS, r =-0,94). When carrying out the factorial analysis of indicators of cerebral haemodynamics before immersion under water three factors were allocated also. The first factor included indicators: reografichesky index (RI, %: r=0,75), dicrotic (DIK, %: r=0,76) and diastolic indexes (DIA, %: r=0,80), diastolic index (DIA, %: r=0,75), relation of amplitude of a venous and arterial component (Aven/ Aart, %: r=0,70). The second factor has high factorial loadings on variables: indicator of venous outflow (ivo, r=0,92). In the third factor I included the frequency of warm reductions (ChSS, r=0,86). It is established that the factorial analysis allows to reveal interrelation between indicators of the central haemodynamics, influence of one variables on others. The factorial model of a condition of cerebral haemodynamics for an assessment of influence of occupations by diving on a brain blood-groove is created at occupations of children by diving.