Assessment of individual changes in the activity of the athletes cardiorespiratory system during current examinations

Abstract

Assessment of the athletes’ body state is important and has many prerequisites. The latter predetermined the expediency of unifying the assessment using the normocentric approach to assessing of the cardiorespiratory system state during current examinations.The purpose of this study was to test the use of percentile analysis of cardiorespiratory system indicators to assess individual changes in the athletes’ body during current examinations. Materials and methods. Using Spiroarteriocardiorhythmography (SACR) examined 202 highly qualified male athletes aged 22.6 ± 2.8 years, representing acyclic sports – martial arts (karate, taekwondo, kickboxing, boxing, judo, sambo) and games (water polo, football). The length of service in sports was 10.3 ± 3.1 years. All studies were carried out in the pre-competition period. In accordance with the design of the examination, using SACR were carried out three times: in the morning, on an empty stomach, in a sitting position on the day of training (K1), immediately (in the first 5-7 minutes) after training (K2) and the morning after training (K3). ). Each registration lasted 2 minutes. Research results. Taking into account the previously determined boundaries of the percentile ranges of the cardiorespiratory system indices distribution, to demonstrate the capabilities of the proposed approach, the changes in the indicators of tidal volume (DO), respiration rate (RR) and heart rate (HR) were assessed during control examinations of athletes before, after and the next morning after workout. It is shown that there are certain differences in cardiorespiratory indices, taking into account their response to the training load. Based on the survey data, an individual functional profile of an athlete was built, which, according to physiological parameters, makes it possible to assess the changes in the body that occur during the post-exercise period. Conclusion. The approved approach made it possible to characterize both group changes in the functional support of physical work and the individual parameters of the athlete's body from the standpoint of its recovery in the post-exercise period in a single scale of assessments