Constitutional features of the reaction of the hemostatic system to a physical load

This study involves 72 young men with various levels of working efficiency and elucidates the relationship between human morphological constitution by the type of age-related evolution of the organism and parameters affecting hemostasis. As suggested by V.G. Shtefko, the measured value of the trochanteric index (TI) is compared to the reaction of the hemostatic system to graded moderate veloergometric load. It was found that decreased coagulability and activation of fibrinolysis take place in untrained men with high TI values in response to a load, while stimulation of blood coagulation and inhibition of its fibrinolytic activity occurs in men with low TI values. There is a significant correlation between the TI value and reaction of the hemocoagulation system to a load. Under the impact of a load, hemocoagulation and fibrinolysis are stimulated in persons with a relatively high working efficiency and high TI values, and coagulation is inhibited and fibrinolysis is more often stimulated in those with low TI values. Our conclusion is that a more favorable and stable response of the hemostatic system to a physical load takes place in subjects with the normo- and hyperevolutive constitutional types in conditions of both low and relatively high working efficiency levels. Low TI values, combined with low working efficiency level, are a risk factor for the development of thromboembolism complications in men, and these may be provoked by physical activity.