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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">10.17238/ISSN2223-2524.2018.3.13</article-id><article-id custom-type="elpub" pub-id-type="custom">smjournal-107</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>Скорость окисления жиров у лыжников-гонщиков в состоянии покоя и при физической нагрузке «до отказа»</article-title><trans-title-group xml:lang="en"><trans-title>The fat oxidation rate at rest and under exercise load «until exhaustion» in Nordic skiers</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>Людинина</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyudinina</surname><given-names>A. Yu.</given-names></name></name-alternatives><email xlink:type="simple">salu_06@inbox.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>Бушманова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bushmanova</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Логинова</surname><given-names>Т. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Loginova</surname><given-names>T. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Варламова</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Varlamova</surname><given-names>N. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Бойко</surname><given-names>Е. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyko</surname><given-names>E. R.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН Институт физиологии Коми научный центр УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Physiology, Ural Branch, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО Сыктывкарский государственный университет имени Питирима Сорокина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pitirim Sorokin Syktyvkar State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>21</day><month>08</month><year>2020</year></pub-date><volume>8</volume><issue>3</issue><fpage>13</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Людинина А.Ю., Бушманова Е.А., Логинова Т.П., Варламова Н.Г., Бойко Е.Р., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Людинина А.Ю., Бушманова Е.А., Логинова Т.П., Варламова Н.Г., Бойко Е.Р.</copyright-holder><copyright-holder xml:lang="en">Lyudinina A.Y., Bushmanova E.A., Loginova T.P., Varlamova N.G., Boyko E.R.</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/107">https://www.smjournal.ru/jour/article/view/107</self-uri><abstract><p>Цель исследования: изучить скорость окисления жиров (СОЖ) при физической нагрузке разной интенсивности и выявить факторы, влияющие на этот процесс. Материалы и методы: обследованы высококвалифицированные лыжники-гонщики - 26 мужчин и 11 женщин. При ступенчато возрастающей велонагрузке в тесте «до отказа» определяли СОЖ методом непрямой калориметрии. Результаты: у высококвалифицированных лыжников (квалификация МС и МСМК) в покое СОЖ составила 0,17 г/мин, пиковая СОЖ - 0,77 г/мин, соответствуя диапазону 40-60% от максимального потребления кислорода (МПК). Уровень мастерства ассоциирован с более высокой пиковой СОЖ и длительным ее удержанием до нагрузки 80-90% от МПК. Возрастные различия СОЖ среди обследуемых проявляются только на пике нагрузки, в диапазоне 60-70% от МПК. Более высокая фоновая и максимальная СОЖ отмечена у мужчин в отличие от женщин. Выводы: при физической нагрузке показатель СОЖ показан к использованию в оценке функционального состояния спортсменов при планировании режимов тренировки и профилактике утомления.</p></abstract><trans-abstract xml:lang="en"><p>Objective: to study the fat oxidation rate during physical exercises of different intensity and to identify factors influencing this process in athletes. Materials and methods: highly qualified Nordic skiers (26 men, 11 women) were examined. Fat oxidation (FO) was determined by the indirect colorimetric technique within stepwise increasing cycle load in the test «to failure». Results: FO for highly skilled skiers (MS and MSIL) was 0.17 g/min at rest and 0.77 g/min at the peak of the load, corresponding to the range of 40-60% of the maximal oxygen consumption (MOC). The level of skill was associated with a higher peak FO and its longer retention up to a load of 80-90% of the MOC. Age differences appeared only at the peak of the load, in the range of 60-70% of the MOC. There was a higher base and maximum FO in men, unlike women. Conclusions: the fat oxidation rate during exercise should be used in assessing the functional state of athletes when planning load regimes and preventing overtraining.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>скорость окисления жиров</kwd><kwd>физическая нагрузка</kwd><kwd>спортивная квалификация</kwd><kwd>пол</kwd><kwd>возраст</kwd><kwd>непрямая калориметрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fat oxidation</kwd><kwd>physical exercises</kwd><kwd>sex</kwd><kwd>age</kwd><kwd>skill</kwd><kwd>indirect calorimetry</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">Randell RK, Rollo I, Roberts TJ, Dalrymple K, Jeukendrup AE, Carter JM. 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