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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">105953</article-id><article-id pub-id-type="doi">10.17816/KMJ105953</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and clinical medicine</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретическая и клиническая медицина</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Individual-typological assessment of the body fat component of the examined children and youth</article-title><trans-title-group xml:lang="ru"><trans-title>Индивидуально-типологическая оценка жирового компонента тела обследуемых детско-юношеского возраста</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6659-4006</contrib-id><contrib-id contrib-id-type="spin">9525-3048</contrib-id><name-alternatives><name xml:lang="en"><surname>Safonenkova</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Сафоненкова</surname><given-names>Елена Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biol.), Assoc. Prof., Depart. of Biological Disciplines</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доц., каф. биологических дисциплин</p></bio><email>ev.safonenkova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4539-4002</contrib-id><name-alternatives><name xml:lang="en"><surname>Chernova</surname><given-names>Valentina N.</given-names></name><name xml:lang="ru"><surname>Чернова</surname><given-names>Валентина Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Pedagog.), Assoc. Prof., Head of Depart., Depart. of Anatomy and Biomechanics</p></bio><bio xml:lang="ru"><p>канд. педагогич. наук, доц., зав. каф., каф. анатомии и биомеханики</p></bio><email>chernova.vn@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1829-7685</contrib-id><name-alternatives><name xml:lang="en"><surname>Bubnenkova</surname><given-names>Olga M.</given-names></name><name xml:lang="ru"><surname>Бубненкова</surname><given-names>Ольга  Михайловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Pedagog.), Assoc. Prof., Depart. of Anatomy and Biomechanics</p></bio><bio xml:lang="ru"><p>канд. педагогич. наук, доц., каф. анатомии и биомеханики</p></bio><email>olabuma@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Smolensk State University of Sports</institution></aff><aff><institution xml:lang="ru">Смоленский государственный университет спорта</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2023-05-26" publication-format="electronic"><day>26</day><month>05</month><year>2023</year></pub-date><volume>104</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>341</fpage><lpage>349</lpage><history><date date-type="received" iso-8601-date="2022-04-05"><day>05</day><month>04</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2023-02-27"><day>27</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-05-26"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/105953">https://kazanmedjournal.ru/kazanmedj/article/view/105953</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Individual anatomical variability in the human body shape can be characterized by its proportions, which serve as the main components of assessing the type of human constitution.</p> <p><bold>Aim.</bold> Establish individual typological features of the age-related changes in the fat component of the examined children, adolescents and youth.</p> <p><bold>Material and methods.</bold> 409 residents of the Smolensk region aged 4–20 years were examined: 212 males and 197 females. The cohort was divided according to the International Age Periodization 1965. Studies of the longitudinal-transverse type lasted for 10 years (2010–2020). The research methods included anthropometry, somatodiagnostics, determination of the biological development variant. To determine the fat component, the thickness of the skin-fat folds was measured, the calculation was made according to the formulas of Ya. Mateyko. The analyzed data had a normal distribution (Shapiro–Wilk test). The hypothesis of statistical significance of differences was tested using Student's t-test.</p> <p><bold>Results.</bold> Assessment of age-related changes in the body fat component of the subjects showed its continuous increase from 4 to 20 years. In female subjects it was higher, the significance of differences was established from the age of 12 (p ≤0.05). The fat component had a high and moderate degree of correlation with body height and weight (r=0.533–0.753 and r=0.530–0.833), skin-fat folds (r=0.501–0.941) and body circumference (r=0.503–0.790). Significant differences were established between the extreme variants of biological development (isochronic approach) (t=2.305–2.604; р ≤0.05). In the examined males, the difference was 10–12%, females — 25–30%. Somatotypological assessment (isosome approach) showed significant differences (t=3.462–6.781; p ≤0.001) in the severity of fat mass in the subjects of both sexes of macrosomal and microsomal types.</p> <p><bold>Conclusion.</bold> The conducted studies have confirmed the presence of high individualization of the fat component’s growth processes of male and female subjects of various somatic types and biological development variants.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Индивидуальная анатомическая изменчивость формы тела человека может быть охарактеризована его пропорциями, служащими основными составляющими оценки типа конституции человека.</p> <p><bold>Цель.</bold> Установить индивидуально-типологические особенности возрастных изменений жирового компонента тела обследуемых детского, подросткового и юношеского возраста.</p> <p><bold>Материал и методы исследования.</bold> Обследованы 409 жителей Смоленского региона в возрасте 4–20 лет: 212 представителей мужского пола и 197 женского. Контингент разделён, согласно Международной возрастной периодизации 1965 г. Исследования продольно-поперечного типа длились 10 лет (2010–2020). Методы исследования включали антропометрию, соматодиагностику, определение варианта биологического развития. Для определения жирового компонента измеряли толщину кожно-жировых складок, расчёт производили по формулам Я. Матейко. Анализируемые данные имели нормальное распределение (критерий Шапиро–Уилка). Проверку гипотезы о статистической значимости различий выполняли с помощью критерия t Стьюдента.</p> <p><bold>Результаты.</bold> Оценка возрастных изменений жирового компонента тела обследуемых показала непрерывное его увеличение от 4 до 20 лет. У обследуемых женского пола он выше, достоверность различий установлена с 12 лет (р ≤0,05). Жировой компонент имеет высокую и умеренную степень корреляции с ростом и массой тела (r=0,533–0,753 и r=0,530–0,833), кожно-жировыми складками (r=0,501–0,941) и обхватными размерами тела (r=0,503–0,790). Установлены значимые различия между крайними вариантами биологического развития (изохронный подход) (t=2,305–2,604; р ≤0,05). У обследуемых мужского пола разница составила 10–12%, женского пола — 25–30%. Соматотипологическая оценка (изосомный подход) показала достоверные различия (t=3,462–6,781; р ≤0,001) в выраженности жировой массы у обследуемых обоего пола макросомного и микросомного типов.</p> <p><bold>Вывод.</bold> Проведённые исследования подтвердили наличие высокой индивидуализации ростовых процессов жирового компонента обследуемых мужского и женского пола различных соматических типов и вариантов биологического развития.</p></trans-abstract><kwd-group xml:lang="en"><kwd>individual-typological assessment</kwd><kwd>fat mass</kwd><kwd>somatic type</kwd><kwd>biological development variant</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>индивидуально-типологическая оценка</kwd><kwd>жировая масса</kwd><kwd>соматический тип</kwd><kwd>вариант биологического развития</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Obesity: Preventing and managing the global epidemic. Report of a WHO Consultation. 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