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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="review-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">664028</article-id><article-id pub-id-type="doi">10.31857/S0131164624030086</article-id><article-id pub-id-type="edn">BUJEPE</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Respiratory sinus arrhythmia: physiological mechanisms and relationship with systemic blood pressure fluctuations</article-title><trans-title-group xml:lang="ru"><trans-title>Дыхательная синусовая аритмия: физиологические механизмы и связь с колебаниями системного артериального давления</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vinogradova</surname><given-names>O. L.</given-names></name><name xml:lang="ru"><surname>Виноградова</surname><given-names>О. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>microgravity@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Borovik</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Боровик</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>microgravity@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zhedyaev</surname><given-names>R. Yu.</given-names></name><name xml:lang="ru"><surname>Жедяев</surname><given-names>Р. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>microgravity@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tarasova</surname><given-names>О. S.</given-names></name><name xml:lang="ru"><surname>Тарасова</surname><given-names>О. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>microgravity@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Biomedical Problems, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН ГНЦ РФ – Институт медико-биологических проблем РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</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>102</fpage><lpage>113</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/664028">https://journals.eco-vector.com/0131-1646/article/view/664028</self-uri><abstract xml:lang="en"><p>Respiratory sinus arrhythmia (RSA) reflects the functioning of the nervous heart control, predominantly of a parasympathetic nature. The study of RSA mechanisms helps to reveal the physiological patterns of regulation of cardiac activity, and the development of new approaches to its assessment is an urgent medical task. This review will examine experimental approaches that have contributed to the development of modern ideas about autonomic nervous system role in the formation of RSA, as well as the connection between RSA and frequency-matched fluctuations in systemic blood pressure. In addition, we will consider new data on the phase relationships of fluctuations in heart rate and blood pressure in the frequency range of respiratory waves, obtained using wavelet analysis of these physiological signals.</p></abstract><trans-abstract xml:lang="ru"><p>Дыхательная синусовая аритмия (ДСА) отражает функционирование механизмов нервной регуляции сердца, преимущественно парасимпатической природы. Изучение механизмов ДСА способствует раскрытию физиологических закономерностей регуляции сердечной деятельности, а разработка новых подходов к ее оценке является актуальной медицинской задачей. В данном обзоре рассмотрены экспериментальные подходы, обеспечившие становление современных представлений о роли автономной нервной системы в формировании ДСА, а также о связи ДСА с соответствующими по частоте колебаниями системного артериального давления. Кроме того, обсуждены новые данные о фазовых соотношениях колебаний сердечного ритма и артериального давления в частотном диапазоне дыхательных волн, полученные с использованием вейвлет-анализа этих физиологических сигналов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>heart rate variability</kwd><kwd>blood pressure variability</kwd><kwd>frequency transfer function</kwd><kwd>phase relationships</kwd><kwd>cross-spectral analysis</kwd><kwd>wavelet analysis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вариабельность сердечного ритма</kwd><kwd>вариабельность артериального давления</kwd><kwd>частотная передаточная функция</kwd><kwd>фазовые соотношения</kwd><kwd>кросс-спектральный анализ</kwd><kwd>вейвлет-анализ</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>23-25-00293</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shaffer F., McCraty R., Zerr C.L. 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