Level of habitual physical activity and parameters of the cardio-respiratory system in students

Objective: to analyze the parameters of the cardio-respiratory system in healthy students with different levels of habitual physical activity. Materials and methods: 106 students of Tula State University (61W, 45M, mean age - 22.9±0.4 years (M±m), mean body mass index 22.5±0.4 kg/m²) were included in the study. The observation time was one year. Colour Doppler Imaging echocardiography and respiratory function tests were provided. Duration of a breath-hold after deep inspiration and after exhalation was obtained. Self-reported questionnaire to examine level of habitual physical activity was completed in the same time. Results: 42% of students had low habitual physical activity, 32% visited fitness centers, swimming pools or participated in recreational sports games (medium habitual physical activity) and 26% engaged in sports not less than 8 hours per week (high habitual physical activity). The optimal LV relaxation existed in the group with medium habitual physical activity (mitral E/A ratio 1,76±0,08 versus 1,53±0,06 in the group with low and 1,70±0,07 06 in the group with high habitual physical activity). The rarest valve regurgitation and the lowest systolic pressure were obtained in the group with medium habitual physical activity. The diameter of the pulmonary artery positively correlated with level of habitual physical activity. The main parameters of respiratory function test increased due to the level of habitual physical activity. Exceeding of the normative indicators of respiratory test was noted only in the group with high physical activity. Results of duration of a breath-hold after deep inspiration and after exhalation closely correlated with echocardiography and respiratory test. Conclusions: adaptive changes due to physical activity increase the functional abilities of the cardio-respiratory system in healthy students. Optimal echocardiography parameters were found in the group with moderate physical activity. Breast Holding Test showed a connection with intracardiac hemodynamics and respiratory function and may be widely used for screening examinations.

students, physical activity, cardio-respiratory system, echocardiography, respiratory function test, breath-holding tests

1. Агаджанян Н.А., Баевский Р.М., Берсенева А.П. Проблемы адаптации и учение о здоровье. М.: Изд-во РУДН, 2006. 284 с. / Agadzhanyan NA, Baevskiy RM, Berseneva AP. Problemy adaptatsii i uchenie o zdorovye. Moscow, Iz-vo RUDN, 2006. 284 p. (in Russian).

2. Земцовский Э.В. Спортивная кардиология. СПб.: Гиппократ, 1995. 448 с. / Zemtsovskiy EV. Sportivnaya kardiologiya. Saint-Petersburg, Gippokrat, 1995. 448 p. (in Russian).

3. Гаркавії Л.Х., Квакина Е.Б., Уколова М.А. Адаптационные реакции и резистентность организма. Ростов-н/Д.: РГУ, 2010. 224 с. / Garkavi LKh, Kvakina EB, Ukolova MA. Adaptatsionnye reaktsii i rezistentnost organizma. Rostov-on-Don, RGU, 2010. 224 p. (in Russian).

4. Руненко С.Д., Таламбум Е.А., Ачкасов Е.Е. Исследование и оценка функционального состояния спортсменов. М.: Профиль, 2010. 72 с. / Runenko SD, Talambum EA, Achkasov EE. Issledovanie i otsenka funktsionalnogo sostoyaniya sportsmenov. Moscow, Profil, 2010. 72 p. (in Russian).

5. Руненко С.Д., Ачкасов Е.Е., Самамикоджеди Н., Каркищенко Н.Н., Таламбум Е.А., Султанова О.А., Красавина Т.В., Кекк Е.Н. Использование современных аппаратнопрограммных комплексов для изучения особенностей адаптации организма к физическим нагрузкам // Биомедицина. 2011. №2. С. 65-72. / Runenko SD, Achkasov EE, Samamikodzhedi N, Karkishchenko NN, Talambum EA, Sultanova OA, Krasavina TV, Kekk EN. The use of modern hardware-software complexes for the study of the features of adaptation of organism to physical exercises. Biomeditsina (Biomedicine). 2011;(2):65-72. (in Russian).

6. Ачкасов Е.Е., Машковский Е.В., Богова О.Т., Вулкан Ш. Морфологические и функциональные особенности системы кровообращения у ветеранов спорта и действующих спортсменов // Вестник Российской академии медицинских наук. 2014. Т.69, №5-6. С. 34-39.

7. Teicholz LE, Kreulen T, Herman MV, Gorlin R. Problems in echocardiographic volume determinations: echocardiographic-angiographic correlations in the presence or absence of asynergy. Am J Cardiol. 1976;37:7-11.

8. Баевский Р.М. Математические методы анализа сердечного ритма. М.: Наука, 1968. 174 с. / Baevskiy RM. Matematicheskie metody analiza serdechnogo ritma. Moscow, Nauka, 1968. 174 p. (in Russian).

9. Шарыкин А.С., Субботин П.А., Павлов В.И., Бадтиева В.А., Трунина И.И., Попова Н.Е., Шилыковская Е.В. Эхокардиографический скрининг детей и подростков при допуске к занятиям спортом // Российский вестник перинатологии и педиатрии. 2016. Т.61, №1. С. 71-79. / Sharykin AS, Subbotin PA, Pavlov VI, Badtieva VA, Trunina II, Popova NE, Shilykovskaya EV. Echocardiographic screening in children and teenagers to be admitted to sports activities. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2016;61(1):71-79. (in Russian).

10. Веневцева Ю.Л., Мельников А.Х. Функциональная допплерография. Тула: Тульский полиграфист, 2002. 232 с. / Venevtseva YuL, Melnikov AKh. Funktsionalnaya dopplerografiya. Tula, Tulskiy poligrafist, 2002. 232 p. (in Russian).

11. Агеев Ф.Т. Современная концепция диастолической сердечной недостаточности // Кардиоваскулярная терапия и профилактика. 2010. Т.9, №7. С. 96-104. / Ageev FT. Modern concept of diastolic heart failure. Kardiovaskulyarnaya terapiya i profilaktika (Cardiovascular Therapy and Prevention). 2010;9(7):96-104. (in Russian).

12. Thomas JD, Weyman AE. Echocardiographic Doppler evaluation of left ventricular diastolic function: Physics and physiology. Circulation. 1991;84:977-990.