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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">Russian Journal of Physiotherapy, Balneology and Rehabilitation</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Physiotherapy, Balneology and Rehabilitation</journal-title><trans-title-group xml:lang="ru"><trans-title>Физиотерапия, бальнеология и реабилитация</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1681-3456</issn><issn publication-format="electronic">2413-2969</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">698836</article-id><article-id pub-id-type="doi">10.17816/rjpbr698836</article-id><article-id pub-id-type="edn">AQPSSP</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original studies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Intermittent hypoxic exposure in post-stroke rehabilitation in residual period: exercise tolerance, psychoemotional state, and cognitive status (a pilot study)</article-title><trans-title-group xml:lang="ru"><trans-title>Интервальные гипоксические экспозиции в реабилитации пациентов после инсульта в периоде остаточных явлений: нагрузочная толерантность, психоэмоциональный и когнитивный статус (пилотное исследование)</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>间歇性低氧-高氧暴露在中风后遗症期患者康复中的应用：运动负荷耐受性、心理情绪与认知状态 （一项预试验）</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9834-2505</contrib-id><name-alternatives><name xml:lang="en"><surname>Nyamukondiwa</surname><given-names>Malachi</given-names></name><name xml:lang="ru"><surname>Ньямукондива</surname><given-names>Малачи</given-names></name><name xml:lang="zh"><surname>Nyamukondiwa</surname><given-names>Malachi</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nyamukondiva_m@student.sechenov.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9859-194X</contrib-id><contrib-id contrib-id-type="spin">8200-2155</contrib-id><name-alternatives><name xml:lang="en"><surname>Koneva</surname><given-names>Elizaveta S.</given-names></name><name xml:lang="ru"><surname>Конева</surname><given-names>Елизавета Сергеевна</given-names></name><name xml:lang="zh"><surname>Koneva</surname><given-names>Elizaveta S.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Associate Professor, Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, доцент, профессор</p></bio><bio xml:lang="zh"><p>MD, Dr. Sci. (Medicine), Associate Professor, Professor</p></bio><email>elizaveta.coneva@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4571-1781</contrib-id><contrib-id contrib-id-type="spin">5800-5813</contrib-id><name-alternatives><name xml:lang="en"><surname>Dudnik</surname><given-names>Elena N.</given-names></name><name xml:lang="ru"><surname>Дудник</surname><given-names>Елена Николаевна</given-names></name><name xml:lang="zh"><surname>Dudnik</surname><given-names>Elena N.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент</p></bio><bio xml:lang="zh"><p>MD, Cand. Sci. (Biology), Associate Professor</p></bio><email>dudnik_e_n@staff.sechenov.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9960-6608</contrib-id><contrib-id contrib-id-type="spin">6168-2110</contrib-id><name-alternatives><name xml:lang="en"><surname>Glazachev</surname><given-names>Oleg S.</given-names></name><name xml:lang="ru"><surname>Глазачев</surname><given-names>Олег Станиславович</given-names></name><name xml:lang="zh"><surname>Glazachev</surname><given-names>Oleg S.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><bio xml:lang="zh"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><email>glazachev@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Sechenov First Moscow State Medical University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет им. И.М. Сеченова</institution></aff><aff><institution xml:lang="zh">Sechenov First Moscow State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Corporate group MEDSI</institution></aff><aff><institution xml:lang="ru">Группа компаний «МЕДСИ»</institution></aff><aff><institution xml:lang="zh">Corporate group MEDSI</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-03-07" publication-format="electronic"><day>07</day><month>03</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-04-19" publication-format="electronic"><day>19</day><month>04</month><year>2026</year></pub-date><volume>25</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>175</fpage><lpage>185</lpage><history><date date-type="received" iso-8601-date="2025-12-18"><day>18</day><month>12</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-02-09"><day>09</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><copyright-holder xml:lang="zh">Eco-Vector</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://rjpbr.com/1681-3456/article/view/698836">https://rjpbr.com/1681-3456/article/view/698836</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND: </bold>Rehabilitation of patients with severe residual deficits after an acute cerebrovascular accident (stroke) is frequently insufficiently effective, necessitating the search for new therapeutic approaches. Hypoxic conditioning using intermittent hypoxic–hyperoxic exposures (IHHE) has demonstrated efficacy in improving physical and mental performance in various patient populations. However, this approach has not previously been applied in post-stroke rehabilitation.</p> <p><bold>AIM: </bold>The study aimed to<bold> </bold>evaluate the efficacy and safety of incorporating IHHE into comprehensive rehabilitation programs for patients in the late post-stroke period (≥ 6 months) regarding exercise tolerance, psychoemotional state<bold>, </bold>and cognitive status.</p> <p><bold>METHODS: </bold>This<bold> </bold>prospective study included 50 patients who had an ischemic or hemorrhagic stroke ≥ 6 months ago. Patients were randomized to either the treatment group (<italic>n</italic> = 20) or the control group (<italic>n</italic> = 30). The treatment group received a standard 3-week rehabilitation program plus 10–12 IHHE procedures (hypoxic phase, FiO₂ = 0.11–0.12; hyperoxic phase, FiO₂ = 0.35–0.40). The control group received the standard rehabilitation program only. The following parameters were assessed before and after the intervention: six-minute walk test (6MWT) score, work performed (W), Borg scale score, heart rate, blood pressure, oxygen saturation<bold>, </bold>psychoemotional<bold> </bold>state (DASS-21<bold>, </bold>Epworth Sleepiness Scale), quality of life (SF-12), functional independence (Barthel Index), and cognitive function (USEFO test).</p> <p><bold>RESULTS: </bold>The treatment group showed a more pronounced increase in exercise tolerance, with an increase in 6MWT distance of 58.9 ± 24.3 m vs. 15.8 ± 18.7 m (<italic>p</italic> = 0.005) and work performed of 7.7 ± 3.8 vs. 3.7 ± 3.1 (<italic>p</italic> = 0.018). A clinically relevant improvement (≥ 35 m) was achieved in 60% of patients in the treatment group compared with 16.7% in the control group. Furthermore, a greater reduction in depression, anxiety, and stress severity according to DASS-21 (<italic>p</italic> &lt; 0.05), decreased daytime sleepiness, increased SF-12 scores, and improved Barthel index were observed. IHHE procedures were well tolerated; adverse effects were minimal and transient, occurring during the first 1–3 procedures.</p> <p><bold>CONCLUSION:</bold> Adding a personalized IHHE course to standard post-stroke rehabilitation resulted in pronounced improvements in exercise tolerance, psychoemotional state, quality of life, and functional independence. The method was safe and well tolerated. Larger-scale studies are required to confirm long-term efficacy.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование. </bold>Реабилитация пациентов с выраженными остаточными явлениями после острого нарушения мозгового кровообращения (ОНМК) часто недостаточно эффективна, что требует поиска новых методов. Гипоксическое кондиционирование в режиме интервальных гипоксически-гипероксических экспозиций (ИГГЭ) доказало свою эффективность в повышении физических и психических кондиций у разных категорий пациентов. В реабилитации после инсульта данная технология ранее не применялась.</p> <p><bold>Цель.</bold> Оценить эффективность и безопасность включения процедур ИГГЭ в комплексную реабилитацию пациентов в отдалённом периоде после инсульта (≥6 месяцев) в отношении толерантности к физической нагрузке, психоэмоционального и когнитивного статуса.</p> <p><bold>Методы.</bold> В проспективное исследование включены 50 пациентов после ишемического или геморрагического инсульта давностью ≥6 месяцев. Пациенты рандомизированы на основную (<italic>n</italic>=20) и контрольную (<italic>n</italic>=30) группы. Основная группа получала стандартную трёхнедельную программу реабилитации плюс 10–12 процедур ИГГЭ (гипоксическая фаза FiO₂=0,11–0,12, гипероксическая FiO₂=0,35–0,40), контрольная группа — только стандартную программу. Оценивали до и после показатели теста шестиминутной ходьбы (6МТХ), выполненной работы (W), шкалы Борга, частоты сердечных сокращений, артериального давления, сатурации, психоэмоционального статуса (DASS-21, шкала Эпворта), качества жизни (SF-12), функциональной независимости (шкала Бартел) и когнитивных функций (тест ЮСЭФО).</p> <p><bold>Результаты.</bold> В основной группе отмечено более выраженное повышение толерантности к нагрузке: прирост дистанции 6МТХ составил +58,9±24,3 м против +15,8±18,7 м (<italic>p</italic>=0,005), выполненной работы — +7,7±3,8 против +3,7±3,1 (<italic>p</italic>=0,018). Клинически значимый прирост (≥35 м) достигнут у 60% пациентов основной группы против 16,7% в группе контроля. Параллельно отмечено значимо большее снижение выраженности депрессии, тревоги и стресса по DASS-21 (<italic>p</italic> &lt; 0,05), уменьшение дневной сонливости, повышение баллов SF-12, прирост по шкале Бартел. Процедуры ИГГЭ переносились хорошо, побочные эффекты были минимальными и преходящими в течение первых 1–3 процедур.</p> <p><bold>Заключение.</bold> Добавление персонализированного курса ИГГЭ к стандартной реабилитации пациентов после инсульта обеспечивает значимое улучшение толерантности к нагрузке, психоэмоционального состояния, качества жизни и функциональной независимости. Метод безопасен и хорошо переносится. Необходимы более масштабные исследования для подтверждения его долгосрочной эффективности.</p></trans-abstract><trans-abstract xml:lang="zh"><p>论证。伴有明显后遗症的急性脑血液循环障碍（中风）患者的康复效果常不理想，因此需要探索新的方法。以间歇性低氧-高氧暴露模式进行的低氧预适应已被证实能有效提升不同类别患者的身体与心理状态。该技术此前尚未应用于中风后康复。</p> <p>目的。评估将间歇性低氧-高氧暴露程序纳入中风远期（≥6个月）患者综合康复方案中，对于改善其运动负荷耐受性、心理情绪及认知状态的有效性与安全性。</p> <p>方法。一项前瞻性研究纳入了50名缺血性或出血性中风后≥6个月的患者。患者被随机分为主要组（n=20）与对照组（n=30）。主要组在接受标准三周康复计划的基础上，加做了10–12次间歇性低氧<bold>-</bold>高氧暴露程序（低氧相FiO<sub>2</sub>=0.11–0.12，高氧相FiO<sub>2</sub>=0.35–0.40）。对照组仅接受标准计划。在干预前后评估了以下指标：6分钟步行测试（6МТХ）、完成功量（W）、Borg量表、心率、血压、血氧饱和度、心理情绪状态（DASS-21、Epworth嗜睡量表）、生活质量（SF-12）、功能独立性（Barthel指数）及认知功能（ЮСЭФО测试）。</p> <p>结果。主要组患者表现出更显著的运动负荷耐受性提升：6МТХ步行距离增加+58.9±24.3米，而对照组为+15.8±18.7米（p=0.005）；完成功量增加+7.7±3.8，对照组为+3.7±3.1（p=0.018）。主要组60%的患者达到了临床显著增加（≥35米），而对照组仅为16.7%。同时，主要组在DASS-21量表的抑郁、焦虑和压力得分上显著降低（p&lt; 0.05），日间嗜睡减少，SF-12评分提高，Barthel指数得分增加。间歇性低氧<bold>-</bold>高氧暴露程序耐受性良好，副作用极小且短暂，仅出现于前1-3次治疗中。</p> <p>结论。在标准康复方案基础上增加个体化的间歇性低氧<bold>-</bold>高氧暴露疗程，可显著改善中风后患者的运动负荷耐受性、心理情绪状态、生活质量和功能独立性。该方法安全且耐受性良好。需开展更大规模研究以确认其长期疗效。</p></trans-abstract><kwd-group xml:lang="en"><kwd>exercise tolerance</kwd><kwd>hypoxic conditioning</kwd><kwd>intermittent hypoxic–hyperoxic exposures</kwd><kwd>post-stroke recovery</kwd><kwd>rehabilitation</kwd><kwd>physiological adaptation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>толерантность к физической нагрузке</kwd><kwd>гипоксическое кондиционирование</kwd><kwd>интервальные гипоксически-гипероксические экспозиции</kwd><kwd>восстановление после инсульта</kwd><kwd>реабилитация</kwd><kwd>физиологическая адаптация</kwd></kwd-group><kwd-group xml:lang="zh"><kwd>运动负荷耐受性</kwd><kwd>低氧预适应</kwd><kwd>间歇性低氧-高氧暴露</kwd><kwd>中风后恢复</kwd><kwd>康复</kwd><kwd>生理性适应</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kuriakose D, Xiao Z. 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