[Effect of polyunsaturated fatty acid-containing food additives on erythrocyte enzyme activities and on hemoglobin affinity to oxygen in highly and low trained volleyball players during physical exertion].

It has been determined that in erythrocytes of high-qualified and low-qualified sportsmen-volleyboll after use of biopreparation "Polien", contained polyunsaturated fatty acids, glycolysis and pentose phosphate pathway reactions are intensified and glutathione reductase activity are decreased. At the same time the affinity of haemoglobin to oxygen in stabilized in organism of sportsmen before and after intensive muscle work. It has been shown, that specific and nonspecific changes of biochemical indexes are realized in organism of sportsmen with different qualification under intensive muscle work.

[Structure-activity features of serum albumin in athletes under physical load].

By circular dichroism the secondary structure of serum albumin has been studied in organism of high-qualified volleyball-sportsmen. It has been determined that changes in percentage correlation of alpha- and beta-structures of sportsmen serum albumin were combined with decrease of protein reserve functional activity and with its intensified liganding by substance of lipid and carbohydrate nature.

[Effect of the biopreparation "Polyene" on parameters of blood fatty acid composition in volleyball athletes].

Influence of the preparation "Polyen" has been studied on indexes of lipid acids contents in blood plasma, erythrocyte membrane and serum albumin of high-qualified volleyball-players. It was shown that "Polyen" has favourable effect on different metabolic pathways of lipid acids, that allow to recommend this preparation as additional component in food ration for training sportsmen.

[The effect of biological food supplements containing polyunsaturated fatty acids on the erythrocyte enzyme activity and on the hemoglobin oxygen affinity in volleyball players exposed to intensive physical loading].

It has been determined that in erythrocytes of professional volley-ball players given biopreparation "Polien" containing polyunsaturated fatty acids glycolysis and pentose phosphate pathway reactions are intensified and glutathione reductase activity decreased. At the same time the affinity of haemoglobin to oxygen stabilized in the sportsmen before and after intensive muscle load.

[Lipid composition of blood plasma and erythrocyte membrane of volleyball players under intensive physical load].

As the result of prolonged training activity highly skilled volleyball players have marked deficiency of fatty acids of w3 family both in the blood plasma as erythrocyte membranes. These acids may be used in the lipid peroxidation processes, that is proved by the facts of POL products content and their drawing into oxidation reaction, which is certified by high level of ATP in erythrocytes. Reduction of quantity of polyunsaturated fatty acids of w3 family may be regarded as results of their insufficient arrival with food.

[The indices of intraerythrocyte metabolism and hemoglobin oxygen affinity in volleyball players under intensive physical loads].

The authors' investigations led them to the conclusion that skilled volleyball players' erythrocytes undergo adaptive metabolic rearrangement. There was also low hemoglobin affinity to oxygen. A single training load provoked the effect of metabolic enhancement as a result of increased red cell concentration of glucose, glycosylated hemoglobin and high activity of hexokinase.