FUNCTIONAL STATE OF THE CARDIOVASCULAR SYSTEM OF ADOLESCENT WATER POLO PLAYERS BEFORE AND AFTER EXERCISE USING A HARDWARE AND SOFTWARE COMPLEX «HEALTH-EXPRESS»

Water polo is a challenging aquatic sport. It requires versatile physical fitness. Intensive sports training induces specific changes in the cardiovascular system, as designated in sports medicine by the term "athletic heart." In Kazakhstan, this sport is one of the promising areas.

The purpose of the study. To examine the state of the cardiovascular system in water sports athletes, including during physical activity, using innovative technologies (HSC «Health-Express»).

Methods and Materials. This retrospective study involved 102 water polo athletes. Of these, 86 people met the inclusion criteria. The sample was formed based on selection, taking into account physical parameters, level of physical fitness, and the absence of contraindications to participation in the study.

Results. After training, female athletes exhibited higher overall heart rate variability (MxDMn, SDNN, CV, Mo) and lower regulatory system stress indicators (Amo%, SI), indicating a less stressful recovery profile compared to male athletes.

Conclusions. The study has shown that acute physical activity causes a decrease in parasympathetic activity and an increase in sympathetic activity, which is manifested in changes in key indicators of heart rate variability.

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