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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">Human Physiology</journal-id><journal-title-group><journal-title xml:lang="en">Human Physiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Физиология человека</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0131-1646</issn><issn publication-format="electronic">3034-6150</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">664003</article-id><article-id pub-id-type="doi">10.31857/S0131164624030039</article-id><article-id pub-id-type="edn">BUYMRH</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">The structure of functional synergy that ensures the preservation of the orthograde posture of a person</article-title><trans-title-group xml:lang="ru"><trans-title>Структура функциональной синергии, обеспечивающей сохранение ортоградной позы человека</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moiseev</surname><given-names>S. А.</given-names></name><name xml:lang="ru"><surname>Моисеев</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergey_moiseev@vlgafc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ivanov</surname><given-names>S. М.</given-names></name><name xml:lang="ru"><surname>Иванов</surname><given-names>С. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergey_moiseev@vlgafc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mikhailova</surname><given-names>Е. А.</given-names></name><name xml:lang="ru"><surname>Михайлова</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergey_moiseev@vlgafc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorodnichev</surname><given-names>R. M.</given-names></name><name xml:lang="ru"><surname>Городничев</surname><given-names>Р. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergey_moiseev@vlgafc.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Velikiye Luki State Academy of Physical Education and Sports</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО Великолукская государственная академия физической культуры и спорта</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-16" publication-format="electronic"><day>16</day><month>09</month><year>2024</year></pub-date><volume>50</volume><issue>3</issue><fpage>26</fpage><lpage>40</lpage><history><date date-type="received" iso-8601-date="2025-02-25"><day>25</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0131-1646/article/view/664003">https://journals.eco-vector.com/0131-1646/article/view/664003</self-uri><abstract xml:lang="en"><p>The paper considers the process of interaction of individual muscles and muscle groups serving various joints of the body in order to stabilize vertical stability disorders caused by respiratory movements of the chest. The most significant control variables in the process of regulation of intermuscular interaction in order to maintain the stability of the vertical position of the body are considered. The analysis was performed using factorization of muscle electrical activity data, values of articular angles and movements of body segments. It was found that the strategy of maintaining a vertical stance is associated with the control of the hip and neck segments, and with an increase in the disturbing effect, other segments of the body are involved in synergy. An increase in the depth of breathing is accompanied by the inclusion of previously unused muscle modules and a change in the degree of involvement of each muscle in the process of regulating the vertical posture. Such inclusion is reflected in the temporal pattern of activation of synergies at the muscular level, which manifests itself in the formation of additional activation peaks in individual phases of the respiratory cycle. In the process of maintaining vertical stability, muscle activity is moderately associated with the regulation of the position of the general center of mass, and is more directed at the formation of kinematic synergies, including changes in the values of a number of articular angles and simultaneous movement of most body segments. The latter, in turn, stabilize variables important for maintaining equilibrium, and synergetic control at the kinematic level increases as the depth of breathing increases.</p></abstract><trans-abstract xml:lang="ru"><p>В данной работе рассматривается процесс взаимодействия отдельных мышц и мышечных групп, обслуживающих различные суставы тела, с целью стабилизации нарушений вертикальной устойчивости, вызываемых дыхательными движениями грудной клетки. Рассматриваются наиболее существенные переменные контроля в процессе регуляции межмышечного взаимодействия с целью поддержания устойчивости вертикального положения тела. Анализ выполнен с применением факторизации данных мышечной электроактивности, величин суставных углов и перемещений сегментов тела. Установлено, что стратегия поддержания вертикальной стойки связана с контролем тазобедренного и шейного сегментов, а при увеличении возмущающего воздействия в синергию оказываются вовлечены и другие сегменты тела. Увеличение глубины дыхания сопровождается включением ранее незадействованных мышечных модулей и изменением вовлечения каждой мышцы в процесс регуляции вертикальной позы. Такое включение отражается на временном паттерне активации синергий на мышечном уровне, что проявляется в формировании дополнительных пиков активации в отдельных фазах дыхательного цикла. В процессе поддержания вертикальной позы мышечная активность оказывается в средней степени связана с регуляцией положения общего центра масс, а в большей степени направлена на формирование кинематических синергий, включающих изменение величин ряда суставных углов и одновременное перемещение большинства сегментов тела. Последние в свою очередь стабилизируют важные для сохранения равновесия переменные, причем синергетический контроль на кинематическом уровне по мере увеличения глубины дыхания возрастает.</p></trans-abstract><kwd-group xml:lang="en"><kwd>muscle synergy</kwd><kwd>respiratory synergy</kwd><kwd>stability stabilization</kwd><kwd>inter-articular interaction</kwd><kwd>motor control</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>мышечная синергия</kwd><kwd>дыхательная синергия</kwd><kwd>стабилизация устойчивости</kwd><kwd>межсуставное взаимодействие</kwd><kwd>двигательный контроль</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Bernshtejn N.A. [Essays on the physiology of movement and the physiology of activity]. M.: Medicina, 1966. 349 p.</mixed-citation><mixed-citation xml:lang="ru">Бернштейн Н.А. Очерки по физиологии движений и физиологии активности. 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