microcirculationРегионарное кровообращение и микроциркуляцияRegional blood circulation and microcirculation1682-66552712-9756Academician I.P. Pavlov First St. Petersburg State Medical University10.24884/1682-6655-2013-12-4-61-69microcirculation-739Research ArticleОРИГИНАЛЬНЫЕ СТАТЬИ (КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ)ORIGINAL ARTICLES (CLINICAL INVESTIGATIONS)Биоимпедансный анализ депонирования крови в периферических регионах во время тилт-теста у спортсменовBioimpedance analysis of blood pooling in peripheral regions of the body during tilt-test in athletesМельниковА. А.MelnikovA. A.meln1974@yandex.ruПоповС. Г.PopovS. G.noemail@neicon.ruНиколаевД. В.NikolaevD. V.dvn@medass.ruЯрославский государственный педагогический университет им. К. Д. УшинскогоРоссияState Pedagogical UniversityRussian FederationЗАО «Научно-технический центр «МЕДАСС»»РоссияScientific Research Centre «Medass»Russian Federation2013301220131246169Copyright © Мельников А.А., Попов С.Г., Николаев Д.В., 20132013Мельников А.А., Попов С.Г., Николаев Д.В.Melnikov A.A., Popov S.G., Nikolaev D.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.microcirc.ru/jour/article/view/739

Изучены величины депонирования крови во всех периферических регионах тела, а также ударный объем крови во время тилт-теста с помощью импедансного метода у спортсменов, тренированных на выносливость, до и в течение двух часов после физической нагрузки. До нагрузки величины депонируемой крови в нижних регионах тела, а также степень снижения УОК в ответ на тилт-теста у спортсменов не отличались от показателей в контроле. После стандартной аэробной нагрузки (40 мин, ЧСС=156±7 уд./мин) степень снижения УОК при тилт-тесте у спортсменов в целом стала повышенной, указывая на развитие ортостатической неустойчивости, однако величины накопления крови в нижних конечностях или абдоминальном регионе тела не отличались от контрольных значений. Таким образом, повышенная склонность к ортостатической неустойчивости у спортсменов на фоне утомления не связана с повышенным депонированием крови в нижних регионах тела.

In the study we investigated blood pooling in all peripheral regions of the body, as well as stroke volume during a tilt-test using impedance method in endurance-trained athletes before and two hours after aerobic exercise session. Before exercise the deposition of blood in the lower regions of the body and cardiac stroke volume (CSV) in response to the tilt-test in athletes do not differ from the control. After standard aerobic exercise (40 min, HR=156±7 b/m) the degree of a CSV reduction during tilt-test in athletes has increased, indicating the development of orthostatic intolerance, but the magnitude of accumulation of blood in the legs or abdominal region of the body does not differ from the control values. Thus, the increased predisposition to orthostatic instability in athletes during fatigue is not associated with an increased deposition of blood in the lower regions of the body.

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The authors declare that there are no conflicts of interest present.