Adaptation of the external respiration system in athletes engaged in cyclic sports and performing their training in the Khanty-Mansiysk autonomous district

The performance of the respiratory system, including the system of external respiration, is one of the main factors limiting the performance of athletes. The assessment of functional state of the respiratory system in athletes training in the Khanty-Mansiysk Autonomous District appears particularly interesting due to specific climatic and ecological conditions in the region. We evaluated the functional state of the respiratory system in athletes engaged in cyclic sports that have their training in the Khanty-Mansiysk Autonomous District. We observed high volumetric and velocity parameters of pulmonary ventilation. Swimmers have better volumetric parameters compared to skiers and biathletes, whereas their velocity parameters indicate insufficient development of the expiratory muscles, which is probably caused by lower workload in these muscles due to the water pressure on the chest of the athlete.