PhD G.N. Ter-Akopov¹
Dr. Biol., Professor Yu.V. Koryagina¹
PhD Yu.V. Kushnareva¹
PhD S.V. Nopin^1
1North Caucasian Research and Clinical Center under the Federal Medical Biological Agency, Essentuki

Objective of the study was to study of the dynamics of the functional state of the circulatory and respiratory systems in highly qualified athletes using HBOT in training conditions in mid-mountains.
Methods and structure of the study. The study of the effects of HBO in the training of athletes in mid-mountain conditions was carried out during training camps with 11 highly qualified female athletes at an altitude of 1240 meters in Kislovodsk, on Mount Maloe Sedlo. The course of HBOT procedures was carried out in a BaroOx 1.0.
Results and conclusions. Positive effects of the use of HBOT in female athletes during training in mid-mountain mountains were observed after the course in terms of heart rate variability parameters in the form of an increase in parasympathetic activity, while after the 1st session the power indicators of very slow waves indicated a hyperadaptive reaction. After a course of 7 procedures, changes in central hemodynamics also occurred: vascular tone and blood pressure decreased. The general condition caused by increased tone of the parasympathetic part of the autonomic nervous system in women led to a relaxing effect, including on the respiratory muscles
The results obtained allowed the authors to propose an effective strategy for training athletes in mid-altitude areas, designated as «Live high - train high, recover with additional oxygen». This method is recommended for general recovery of the body after a training day, micro- and mesocycle, and during the off-season training period.

Keywords: athletes, functional state, cardiovascular system, respiratory system, mid-altitude, hyperbaric oxygenation.

References

1. Koryagina Yu.V., Ter-Akopov G.N., Nopin S.V. Sovremennyye tekhnologii i effekty gornoy i gipoksicheskoy podgotovki sportsmenov [Modern technologies and effects of mountain and hypoxic training of athletes]. Kurortnaya meditsina. 2017. No. 3. pp. 170-174.
2. Ter-Akopov G.N., Koryagina Yu.V., Abutalimova S.M. Vozdeystviye gipoksii srednegorya i kislorodoterapii na dinamiku funktsionalnogo sostoyaniya kardiorespiratornoy sistemy organizma sportsmenov, perebolevshikh COVID-19 [The impact of mid-altitude hypoxia and oxygen therapy on the dynamics of the functional state of the cardiorespiratory system of athletes who have recovered from COVID-19]. Teoriya i praktika fizicheskoy kultury. 2023. No. 8. pp. 44-46.
3. Chernyak A.V., Neklyudova G.V., Naumenko Zh.K., Pashkova T.L. Funktsiya vneshnego dykhaniya u sportsmenov, zanimayushchikhsya lyzhnymi gonkami i konkobezhnym sportom [Function of external respiration in athletes involved in cross-country skiing and speed skating]. Pulmonologiya. 2019. No. 29 (1). pp. 62-69.
4. Shchurov A.G., Dmitriev G.G., Endaltsev B.V. Dinamika vosstanovleniya funktsionalnogo sostoyaniya sportsmenov posle fizicheskoy nagruzki v usloviyakh giperbaricheskoy oksigenatsii [Dynamics of restoration of the functional state of athletes after physical activity under conditions of hyperbaric oxygenation]. Teoriya i praktika fizicheskoy kultury. 2016. No. 2. pp. 37-39.
5. Branco B.H., Fukuda D.H., Andreato L.V., Santos J.F., Esteves J.V., Franchini E. The Effects of Hyperbaric Oxygen Therapy on PostTraining Recovery in Jiu-Jitsu Athletes. PLoS ONE. 2016. Vol. 11. № 3 P. e0150517.
6. Ishihara A. Mild hyperbaric oxygen: mechanisms and effects. J Physiol Sci. 2019. Vol. 69. No. 4. pp. 573-580.
7. Sperlich B., Zinner C., Hauser A., Holmberg H.C., Wegrzyk J. The impact of hyperoxia on human performance and recovery. Sports Med. 2017. Vol. 47. No. 3. pp. 429-438.