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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">smjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Спортивная медицина: наука и практика</journal-title><trans-title-group xml:lang="en"><trans-title>Sports medicine: research and practice</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-2524</issn><issn pub-type="epub">2587-9014</issn><publisher><publisher-name>NEICON</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47529/2223-2524.2023.2.7</article-id><article-id custom-type="elpub" pub-id-type="custom">smjournal-566</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИОЛОГИЯ И БИОХИМИЯ СПОРТА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SPORTS PHYSIOLOGY AND BIOCHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Выраженность и динамика изменения сывороточной концентрации биохимических маркеров повреждения мышечной ткани у опытного ультрамарафонца после преодоления дистанции 165 км на фоне сохраняющейся физической нагрузки</article-title><trans-title-group xml:lang="en"><trans-title>The severity and dynamics of changes in the serum concentration of biochemical markers of muscle tissue damage in an experienced ultramarathon runner after overcoming a distance of 165 km against the background of continuing physical activity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Безуглов</surname><given-names>Э. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bezuglov</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Безуглов Эдуард Николаевич, к.м.н., председатель медицинского комитета РФС, руководитель медицинского штаба ПФК «ЦСКА», заведующий лабораторией спорта высших достижений ФГАУ ВО «Первый Московский медицинский университет им. И.М. Сеченова», Россия, 125252, Москва, 3-я Песчаная ул., 2а, стр. 2; доцент кафедры спортивной медицины и медицинской реабилитации ФГАУ ВО «Первый Московский медицинский университет им. И.М. Сеченова», Россия, 119435, Москва, ул. Большая Пироговская, 2, стр. 9</p></bio><bio xml:lang="en"><p>Eduard N. Bezuglov, Ph.D. (Medicine), Chairman of the Medical Committee of the RFU, Head of the Medical Staff of PFC CSKA, Head of the High Performance Sports Laboratory, Sechenov First Moscow State Medical University, Russia, 125252, Moscow, 3rd Peschanaya str., 2A building 2; Associate Professor of the Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University, Russia, 119435, Moscow, Bolshaya Pirogovskaya str., 2 building 9</p></bio><email xlink:type="simple">e.n.bezuglov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шошорина</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shoshorina</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шошорина Мария Сергеевна, ординатор 1-го года кафедры спортивной медицины и медицинской реабилитации ФГАУ ВО «Первый Московский медицинский университет им. И.М. Сеченова», Россия, 119435, Москва, ул. Большая Пироговская, 2, стр. 9</p></bio><bio xml:lang="en"><p>Maria S. Shoshorina, 1st year resident, Department of Sport Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University, Russia, 119435, Moscow, Bolshaya Pirogovskaya str., 2 building 9</p></bio><email xlink:type="simple">kaisough@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Талибов</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Talibov</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Талибов Олег Букарович, к.м.н., член медицинского комитета РФС, доцент кафедры терапии, клинической фармакологии и неотложной медицины ФГБОУ ВО «Московский государственный медико-стоматологический университет имени А.И. Евдокимова» Минздрава России, Россия, 127206, Москва, ул. Вучетича, 21</p></bio><bio xml:lang="en"><p>Oleg B. Talibov, Ph.D. (Medicine), member of the RFU medical committee, Associate Professor of the Department of Therapy, Clinical Pharmacology and Emergency Medicine, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Russia, 127206, Moscow, Vucheticha str., 21</p></bio><email xlink:type="simple">oleg.talibov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАУ ВО «Первый государственный Московский медицинский университет им. И.М. Сеченова» Министерства здравоохранения Российской Федерации (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Московский государственный медико-стоматологический университет имени А.И. Евдокимова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yevdokimov Moscow State University of Medicine and Dentistry</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>17</day><month>10</month><year>2023</year></pub-date><volume>13</volume><issue>2</issue><fpage>13</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Безуглов Э.Н., Шошорина М.С., Талибов О.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Безуглов Э.Н., Шошорина М.С., Талибов О.Б.</copyright-holder><copyright-holder xml:lang="en">Bezuglov E.N., Shoshorina M.S., Talibov O.B.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.smjournal.ru/jour/article/view/566">https://www.smjournal.ru/jour/article/view/566</self-uri><abstract><sec><title>Цель</title><p>Цель: определить выраженность и динамику изменения концентрации биохимических маркеров повреждения мышечной ткани в сыворотке крови опытного ультрамарафонца после преодоления дистанции в 165 километров.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: измерение сывороточной концентрации маркеров повреждения мышечной ткани (аспартатаминотрансфераза (АСТ), аланинаминотрансфераза (АЛТ), креатинкиназа (КК), креатинкиназа MB (КК-МБ), миоглобин) в сыворотке до ультрамарафона и через 16 и 144 часа после него у опытного бегуна (возраст 36 лет, рост 186 см, вес 76 кг, индекс массы тела 21,96).</p></sec><sec><title>Результаты</title><p>Результаты: через 16 часов после окончания забега наблюдались чрезвычайно высокие уровни АСТ, АЛТ, КК, КК-МБ и миоглобина, сочетание которых свидетельствует о выраженном рабдомиолизе. Через 144 часа было отмечено снижение уровня всех маркеров повреждения мышечной ткани, в том числе миоглобина, однако они продолжали оставаться значительно выше референсных значений. При этом у спортсмена не наблюдалось сколь-либо значимой патологической симптоматики, и он продолжал тренироваться в восстановительном режиме.</p></sec><sec><title>Заключение</title><p>Заключение: забеги на ультрамарафонские дистанции приводят к значительному повреждению мышц, что может стать причиной рабдомиолиза. Его выраженность может не коррелировать со сколь-либо значимыми клиническими проявлениями.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose: to determine the severity and dynamics of changes in the concentration of biochemical markers of muscle tissue damage in the blood serum of an experienced ultramarathon runner after overcoming a distance of 165 kilometers.</p></sec><sec><title>Materials and methods</title><p>Materials and methods: measurement of serum concentrations of markers of muscle tissue damage (aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatine kinase (CK), creatine kinase MB (CK-MB), myoglobin) in serum before and 16 and 144 hours after ultramarathon in an experienced runner (age 36, height 186 cm, weight 76 kg, body mass index 21.96).</p></sec><sec><title>Results</title><p>Results: 16 hours after the end of the race, extremely high levels of AST, ALT, CK, CK-MB and myoglobin were observed, the combination of which indicates severe rhabdomyolysis. After 144 hours, a decrease in the level of all markers of muscle tissue damage, including myoglobin, was noted, however, they continued to remain significantly higher than the reference values. At the same time, the athlete did not have any significant pathological symptoms, and he continued to train in the recovery mode.</p></sec><sec><title>Conclusion</title><p>Conclusion: ultramarathon races lead to significant muscle damage, which can lead to rhabdomyolysis. Its severity may not correlate with any significant clinical manifestations.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рабдомиолиз</kwd><kwd>маркеры повреждения мышечной ткани</kwd><kwd>ультрамарафон</kwd><kwd>клинический случай</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rhabdomyolysis</kwd><kwd>markers of muscle tissue damage</kwd><kwd>ultramarathon</kwd><kwd>clinical case</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Comrades Marathon History. 2000–2005 [internet]. Avaialble at: https://comrades.com/histories (accessed 11 February 2020).</mixed-citation><mixed-citation xml:lang="en">Comrades Marathon History. 2000–2005 [internet]. 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