Post-loading dynamics of beat-to-beat blood pressure variability in highly qualified athletes




Using Spiroarteriocardiorhythmography (SACR), 202 highly qualified male athletes, aged 22.6 ± 2.8 years, representing acyclic sports: martial arts (karate, taekwondo, kickboxing, boxing, freestyle wrestling, Greco-Roman wrestling, judo, sambo) and games (water polo, football) were examined. Sports experience was 10.3 ± 3.1 years. All studies were carried out in the pre-competition period. In accordance with the design, the examination with the use of SACR were carried out three times: in the morning, on an empty stomach, in a sitting position on the day of training (G1), immediately (in the first 5-7 minutes) after training (G2) and the next day in the morning after sleep (G3). The duration of each registration was 2 minutes. The spectral parameters of the variability of systolic (SBPV) and diastolic (DBPV) pressure and their derivatives – baroreceptor sensitivity (BR) and indices of heart rate centralization (ICHR), systolic (ICSBP) and diastolic (ICDBP) pressures were determined.

It is shown that the indicators of beat-to-beat blood pressure variability complement the results of the study of heart rate variability..

Key words: beat-to-beat blood pressure variability, athletes, physical load.