THE CONDITION OF CARDIORESPIRATORY SYSTEM IN STUDENTS WITH DIFFERENT DEGREE OF RESISTANCE TO HYPOXIA

The parameters of cardiorespiratory system of students with different levels of resistance to transient hypoxia-hypercapnia were studied. Differences in the lung function indices, heart rate variability and central hemodynamic in young people depending on the results of Shtange’s respiratory test were identified. It was found out that students with low resistance to hypoxia had reduced ventilation indices and heart rate spectral characteristics. The variability of hemodynamic characteristics in different phases of arbitrary apnea was studied. The study found that more than a half of students aged 18 to 23 years old have a high level of resistance to transient hypoxia-hypercapnia. Lower values of adaptive reserves in young people with low tolerance to hypoxia were found. 51% of the examined students had unsatisfactory adaptation reserves, 3% demonstrated the failure of adaptation. The study established the compensatory changes in the pulmonary ventilation in patients with a low threshold of apnea. Phase dynamics of central hemodynamics parameters in patients with various degrees of resistance to transient hypoxia in the European North of Russia was studied first time. Inconsistency and disorganization of factor structure of correlations of the studied quantities in people with the low level of resistance to hypoxia reflects the imperfection of regulation mechanisms which cannot provide the necessary level of tolerance. In students with the high threshold apnea the state of modulating system, hemodynamics elements and the systems of pulmonary ventilation play the most important role.

студенты, гипоксия, гиперкапния, проба Штанге, лёгочная вентиляция, спирометрия, вариабельность сердечного ритма, центральная гемодинамика, реография, students, hypoxia, hypercapnia, Shtange’s test, spirometry, heart rate variability, central hemodynamic, rheography

1. Agadzhanyan N.A., Chizhov A.Ya. Gipoksicheskie, gipokapnicheskie i giperkapnicheskie sostoyaniya: uchebnoe posobie. M.: Meditsina, 2003. 96 s.

2. Bochenkov A.A., Milyutin S.G. Dinamika adaptatsii k uchebnoi deyatel'nosti u uchashchikhsya meditsinskogo kolledzha // Fundamental'nye issledovaniya. 2010. T.11. S.583-589.

3. Emushintsev P.A. Effektivnost' ispol'zovaniya gipoksii giperkapnii v vosstanovitel'noi korrektsii funktsional'nykh rezervov u vodolazov i sportsmenov: avtoref. dis. … kand. med. nauk. M., 2011. 16 s.

4. Zabolotskikh I.B., Ilyukhina V.A. Fiziologicheskie osnovy razlichii stressornoi ustoichivosti zdorovogo i bol'nogo cheloveka. Krasnodar, 1995. 100 s.

5. Zabolotskikh N.V. Izmeneniya perifericheskoi i sistemnoi gemodinamiki v otvet na tranzitornuyu giperkapniyu i gipoksiyu u zdorovykh lyudei // Usp. sovrem. estestvoznaniya. 2005. №2. S.77-78.

6. Ishekov A.N., Mosyagin I.G. Dinamika pokazatelei kardiorespiratornoi sistemy u studentov pri adaptatsii k normobaricheskoi gipoksicheskoi gipoksii na Evropeiskom Severe Rossii // Ekologiya cheloveka. 2009. №1. S.38-42.

7. Kopytova N.S., Gudkov A.B. Sezonnye izmeneniya funktsional'nogo sostoyaniya sistemy vneshnego dykhaniya u zhitelei Evropeiskogo Severa Rossii // Ekologiya cheloveka. 2007. №10. S.41-43.

8. Krivoshchekov S.G., Divert G.M., Divert V.E. Individual'nye osobennosti vneshnego dykhaniya pri preryvistoi normobaricheskoi gipoksii // Fiziologiya cheloveka. 2006. T.32, №3. S.62-69.

9. Malkin V.B., Gippenreiter E.B. Ostraya i khronicheskaya gipoksiya // Problemy kosmicheskoi biologii. M.: Nauka, 1977. T.35. 315 s.

10. Mal'tseva E.A., Mikhailova L.A. Parametry vneshnego dykhaniya u studentov // Sib. med. obozrenie. 2008. T.49, №1. S.63-66.

11. Ustoichivost' k gipoksii i vestibulyarnaya ustoichivost' vospitannikov i vospitannits 6-14 let sotsial'no-reabilitatsionnogo tsentra / A.V.Nenasheva [i dr.] // Vestnik YuUrGU. Seriya: Obrazovanie, zdravookhr., fiz. kul'tura. 2007. №2(74). S.120-124.

12. Nesterov S.V., Nesterov V.P., Burdygin A.I. Vliyanie chastoty dykhaniya na variabel'nost' serdechnogo ritma // Doklady akademii nauk. 2005. T.400, №5. S.708-710.

13. Pat. 2266142 RF. Sposob povysheniya nespetsificheskoi rezistentnosti organizma pri vakhtovom metode raboty v usloviyakh Krainego Severa / A.Ya.Chizhov, V.S.Boichuk, A.N.Fomin, Ya.I.Kertsman, O.P.Andreev, V.S.Kruglova, A.V.Putilin; opubl. 20.12.2005.

14. Sukhanova I.V. Morfofunktsional'naya kharakteristika fizicheskogo razvitiya studentov severnogo mezhdunarodnogo universiteta // Vestnik VGU. Seriya: Khimiya. Biologiya. Farmatsiya. 2006. №2. S.173-179.

15. Sravnitel'naya kharakteristika gemodinamicheskikh reaktsii u yunoshei s raznymi tipami regulyatsii krovoobrashcheniya / I.O.Khalyavkina [i dr.] // Kubanskii nauch. med. vestnik. 2011. №3. S.182-185.