[Respiratory system reactivity in young women athletes as effected by the ovarian menstrual cycle].

It is established that menstrual cycle influences the reactivity of the respiratory system. It is important to mark the changes during the menstrual cycle of sportswomen. Such observations can prevent the untimely and negative influence on the health during training. The days of menstrual cycle more or less favourable for the sports loading are marked. The parameters of cardiovascular system don't show common response to the hypercapnic test. Therefore, the parameters of hemodynamics cannot be used for predicting the physiologic status of sportswomen during menstrual cycle.