Abstract
Purpose : to study types of the cardio-hemo-dynamic reaction of an organism and morpho-biochemical changes of erythrocytes of peripheral blood of female volleyball players on physical activity of the maximum aerobic power. Material : 18 female volleyball players with different qualification participated in the experiment (age - 22,0±0,6 years). It is investigated cardio-hemo-dynamic (by functional methods), functional changes (by biochemical methods) and structure of erythrocytes (by means of the scanning electronic microscopy) before and after maximum (3,5 W/kg of body mass) physical activity. Results : It is determined that the maximum physical activity causes essential changes in cardio-hemo-dynamic. Such changes depend on the morphological reorganization of peripheral blood erythrocytes (increase in the index of erythrocytes deformation) and closely correlate with biochemical changes (decrease of ATP concentration and increase of magnesium concentration in erythrocytes). It is discussed the possible mechanisms of realization of reaction features of the organism of female volleyball players to physical activity of the maximum aerobic power. Conclusions : the physical activity of the maximum aerobic power finds typological features of the cardio-hemo-dynamic reaction of the female volleyball players’ organism. Such features are expressed by conformational changes of erythrocytes of peripheral blood. They depend on the concentration of separate macroelements in these cells and type of cardio-hemo-dynamic.
Highlights
The following types of cardio-hemo-dynamic were determined according to the typological analysis: in 7 (38,9%) female volleyball players – hypodynamic; in 6 female volleyball players (33,3%) – eukinetic; in 5 female volleyball players (27,8%) hyperkinetic
It is determined that in female volleyball players with the hyperkinetic type of cardio-hemo-dynamic essential increase in systolic blood pressure reaches a maximum until the end of the first minute of physical activity of the maximum aerobic power
In female volleyball players with the hypodynamic and eukinetic type of cardiohemo-dynamic, the systolic blood pressure reached a maximum in the second minute of physical activity
Summary
The physical activity of the maximum aerobic power of 3,5 W/kg of body mass was applied during the research. Cardio-hemo-dynamic changes were estimated according to the following parameters: heart index; systolic blood pressure, diastolic blood pressure, and average arterial blood pressure; changes of heart rate; stroke and minute volume of blood circulation. The capillary blood sampling was done for studying of morpho-biochemical changes of erythrocytes. It was determined glucose level in blood plasma before and after 5 minutes of physical activity of the maximum aerobic power. The concentration of adenosine triphosphate (ATP) in erythrocytes was defined by means of P.M. Yaverbaum’s method [8]. Morphological researches of erythrocytes were performed in the scanning electronic microscope “JEOL25М-Т220А” (Japan) [20]. Low level of conformational ability of erythrocytes is defined at values of the erythrocytes deformation index from 1,6 to 2,5, average – within 2,6-3,9, high – at 4,0-6,0
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