IMPROVING THE TRAINING PROCESS OF 16–17-YEAR-OLD BIATHLETES BY MEANS OF HYPOXIC-HYPERCAPNIC EXPOSURES AND CONTROL OF CHANGES IN THE PREMORBID CONDITION OF THE CARDIOVASCULAR SYSTEM IN THE BASIC STAGE OF SPORTS PREPARATION

Aim. The article deals with theoretical and experimental substantiation of the effectiveness of basic and ergogenic (hypoxic-hypercapnic exposures) aids in the preparation of 16–17-year-old biathletes. Materials and methods. The study involved two groups of 16–17-year-old biathletes. All athletes underwent an in-depth medical examination at the beginning of the experiment. Throughout the study, their functional status was assessed by the premorbid index of the cardio-vascular system obtained with the CardioSoft diagnostic system (USA). Results. Hypoxic-hypercapnic exposures in sports training along with the general training program aimed at deve­loping local-regional muscle endurance is a promising approach that can ensure a high level of functional abilities in athletes and improve their sports results. Conclusion. The results of the study contribute to the improvement of the training system for 16-17-year-old biathletes at the basic stage of sports preparation. The study proves that the innovative method proposed is effective for controlling the premorbid state of the cardiovascular system in athletes.