ABSTRACT
The state of the central hemodynamic and variability of heart rate (VHR) in high quality sportsmen with various direction of training processes in conditions of relative tranquility was investigated. Was discovered that in sportsmen during the endurance training (group "Endurance", n = 27) and in strength training (group "Strength", n = 17) was noted the decrease in total peripheral blood resistance (TPBR: -15%, p = 0.003 and -16%, p = 0.011 for groups "Endurance" and "Strength" accordingly). However, in group "Strength" the minute blood volume (MBV) was increased (p = 0.012), and temporal and spectral data ofVHR (RMSSD, PNN50, HF)--decreased (p < 0.05) in comparison with control group (n = 56). Part of this differences had to do with increase body mass index (p = 0.005) in the group "Strength". In "Endurance" group the VHR were increased (RMSSD, pNN50, HF, VLF, TP all p < 0.02), the mean arterial pressure was decreased (p < 0.003) without considerable differences in MVB in comparison with the control group. The received data allows to conclude, that in the state of tranquility, the hemodynamic maintenance of the organism of the sportsmen of the "Strength" group takes place on a higher level of MBV and the mechanisms of heart regulation tension. On the other hand, in sportsmen training in endurance, the low level of MBV is taken care of by less tension of the regulation mechanisms of the heart action (higher tonus of vagus).
