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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">10.47529/2223-2524.2022.4.8</article-id><article-id custom-type="elpub" pub-id-type="custom">smjournal-433</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>Особенности карнитинового обмена у юных спортсменов</article-title><trans-title-group xml:lang="en"><trans-title>Features of carnitine metabolism in young athletes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1227-2332</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самойлов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoilov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самойлов Александр Сергеевич, доктор медицинских наук, генеральный директор</p><p>123098, Москва, ул. Маршала Новикова, 23</p></bio><bio xml:lang="en"><p>Samoilov Alexander Sergeevich, МD, D.Sc. (Medicine), General Director</p><p>23 Marshala Novikova str., Moscow, 123098</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0267-9761</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жолинский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zholinsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жолинский Андрей Владимирович, кандидат медицинских наук, директор</p><p>121059, Москва, ул. Большая Дорогомиловская ул., 5</p></bio><bio xml:lang="en"><p>Zholinsky Andrey Vladimirovich, МD, PhD (Medicine) Director</p><p>5 Bolshaya Dorogomilovskaya str., Moscow, 121059</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9248-6292</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рылова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rylova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рылова Наталья Викторовна, доктор медицинских наук, профессор, заведующая лабораторией спортивной нутрициологии Центра спортивной медицины и реабилитации</p><p>123098, Москва, ул. Маршала Новикова, 23</p></bio><bio xml:lang="en"><p>Rylova Natalya Viktorovna, МD, D.Sc. (Medicine), Professor, Head of the Laboratory of Sports Nutrition of the Center for Sports Medicine and Rehabilitation</p><p>23 Marshala Novikova str., Moscow, 123098</p></bio><email xlink:type="simple">nrilova@fmbcfmba.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6460-1337</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Большаков</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolshakov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Большаков Иван Владимирович, ординатор кафедры восстановительной медицины, спортивной медицины, курортологии и физиотерапии с курсом сестринского дела МБУ ИНО ФМБЦ им. А.И. Бурназяна</p><p>123098, Москва, ул. Маршала Новикова, 23</p></bio><bio xml:lang="en"><p>Bolshakov Ivan Vladimirovich, Resident of the Department of Restorative Medicine, Sports Medicine, Balneology and Physiotherapy with a Nursing Course</p><p>23 Marshala Novikova str., Moscow, 123098</p></bio><email xlink:type="simple">julymbo04@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Государственный научный центр Российской Федерации — Федеральный медицинский биофизический центр имени А.И. Бурназяна» ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State Research Center — Burnasyan Federal Medical Biophysical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Федеральный научно-клинический центр спортивной медицины и реабилитации Федерального медико-биологического агентства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific and Clinical Center for Sports Medicine and Rehabilitation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>12</month><year>2022</year></pub-date><volume>12</volume><issue>4</issue><fpage>40</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Самойлов А.С., Жолинский А.В., Рылова Н.В., Большаков И.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Самойлов А.С., Жолинский А.В., Рылова Н.В., Большаков И.В.</copyright-holder><copyright-holder xml:lang="en">Samoilov A.S., Zholinsky A.V., Rylova N.V., Bolshakov I.V.</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/433">https://www.smjournal.ru/jour/article/view/433</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: изучить показатели карнитинового обмена у юных спортсменов различных специализаций.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: в данном исследовании приняли участие 46 человек с разным уровнем физической активности в возрасте от 15 до 18 лет. Первую группу составили 18 девочек, профессионально занимающихся хоккеем на траве (средний возраст — 16,17 ± 0,31 года). Во вторую группу включены спортсмены-пловцы общим количеством 21 человек (10 девушек и 11 мальчиков, средний возраст — 17,00 ± 0,26 года). В группу контроля вошли 7 юношей со стандартным режимом двигательной активности, не занимающихся спортом (возраст испытуемых — 16 лет). В процессе исследования применялся метод жидкостной тандемной хроматомасс-спектрометрии с ионизацией в электроспрее. Материал для исследования — капиллярная кровь. В результате анализа материала определялись концентрации связанного карнитина (ацилкарнитинов) и свободного карнитина в мкмоль/л.</p></sec><sec><title>Результаты</title><p>Результаты: сравнительный анализ крови между тремя группами продемонстрировал различия показателей свободного карнитина. Было показано, что концентрация свободного карнитина в плазме крови спортсменов, занимающихся хоккеем на траве, была достоверно ниже, чем в группах спортсменов-пловцов и лиц, не занимающихся спортом (p &lt; 0,001). При этом значения показателей связанного карнитина значимо не отличались между всеми испытуемыми (p &gt; 0,05). Установлено, что значения карнитинового коэффициента были достоверно выше в группе спортсменов-хоккеистов по сравнению с другими группами (p &lt; 0,001).</p></sec><sec><title>Заключение</title><p>Заключение: снижение показателей свободного карнитина в группе спортсменов-хоккеистов, возможно, является следствием долговременной адаптации организма к условиям, в которых главным энергетическим субстратом для работающих мышц является глюкоза. Необходимы дальнейшие исследования для уточнения точных механизмов развития данного явления.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective: to study the indicators of carnitine metabolism in young athletes of various specializations.</p></sec><sec><title>Materials and methods</title><p>Materials and methods: This study involved 46 people with different levels of physical activity aged 15 to 18 years. The first group consisted of 18 girls professionally involved in field hockey (mean age, 16.17 ± 0.31 years). The second group included 21 swimmers (10 girls and 11 boys, mean age 17.00 ± 0.26 years). The control group included 7 young men with a standard mode of motor activity, not involved in sports (the age of the subjects was 16 years). In the course of the study, the method of liquid tandem chromatography-mass spectrometry with ionization in an electrospray was used. The material for research is capillary blood. As a result of the analysis of the material, the concentrations of bound carnitine (acylcarnitines) and free carnitine were determined in µmol/l.</p></sec><sec><title>Results</title><p>Results: Comparative blood analysis between the three groups showed differences in free carnitine levels. It was shown that the concentration of free carnitine in the blood plasma of field hockey athletes was significantly lower than in the groups of swimmers and non-athletes (p &lt; 0.001). At the same time, the values of indicators of bound carnitine did not differ significantly between all subjects. We also studied that the values of the carnitine coefficient were significantly higher in the group of hockey players compared to other groups (p &lt; 0.001).</p></sec><sec><title>Conclusion</title><p>Conclusion: The decrease in free carnitine levels in the group of hockey players is probably the result of long-term adaptation of the body to conditions in which glucose is the main energy substrate for working muscles. Further studies are needed to clarify the exact mechanisms of development of this phenomenon.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>карнитин</kwd><kwd>ацилкарнитин</kwd><kwd>спортсмены</kwd><kwd>дети</kwd><kwd>окисление жирных кислот</kwd></kwd-group><kwd-group xml:lang="en"><kwd>carnitine</kwd><kwd>acylcarnitine</kwd><kwd>athletes</kwd><kwd>children</kwd><kwd>fatty acid oxidation</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">Purdom T., Kravitz L., Dokladny K., Mermier C. Understanding the factors that effect maximal fat oxidation. J. Int. Soc. Sports Nutr. 2018;15:3. https://doi.org/10.1186/s12970-018-0207-1</mixed-citation><mixed-citation xml:lang="en">Purdom T., Kravitz L., Dokladny K., Mermier C. Understanding the factors that effect maximal fat oxidation. J. Int. Soc. 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