Intermittent hypoxic conditioning: experience and potential in cardiac rehabilitation programs

Aim. To evaluate the clinical efficiency of the individually dosed interval hypoxia-hyperoxic therapy in the medical rehabilitation of patients with osteoarthritis (OA), having post-COVID syndrome. Material and methods. 50 patients with OA (84% females, age of 43 to 68 years) where included in the randomized placebo-controlled study. Coronavirus infection COVID-19 were diagnosed from 12 to 26 weeks before the study. Patients had at least 6 symptoms of post-COVID syndrome. All patients were randomized into 3 groups. 18 patients of the study group received 10 hypoxia-hyperoxic therapy procedures, 15 comparison group patients – 10 placebo procedures, 14 control group patients – only standard rehabilitation. The study group patients were breathing hypoxic (FiO2 13–15%) and hyperoxic (FiO2 up to 40%) gas mixture through the mask in the interval mode using device ReOxy. The duration of 1–4 procedures was 30 min, 5–10 procedures – 40 min. The placebo procedures were performed using the mask with the atmospheric air hole. The standard rehabilitation program in all groups for 2 weeks included: 10 group sessions of physical exercises with elements of breathing exercises, 10 procedures of magnetic therapy for joints, 10 sodium chloride baths. Joint pain and general health on 100-mm visual analog scale, Lequesne and WOMAC indexes, Spielberger-Khanin reactive anxiety test, Beck depression inventory and breathlessness on Modified Borg scale were evaluated at baseline (control point T0) and at 2 weeks (control point T1). Results and discussion. After 2 weeks (T1) in the study group, pain decreased by 51.4% (p < 0.01), Lequesne index – by 34.8% (p < 0.05), WOMAC – by 44.7% (p < 0.05), reactive anxiety level – by 23.7% (p < 0.05), depression symptoms – by 52.9% (p < 0.01), breathlessness – by 71.2% (p < 0.01), general health improved by 52.1% (р < 0.01). In the study group, there were statistically significant differences from the control group in all parameters (р < 0.05) and from the comparison group in most indicators (р < 0.05), excluding the Lequesne index. These results are consistent with the data of modern studies of efficiency of hypoxic conditioning. Conclusion. 2-week rehabilitation program, including interval hypoxia-hyperoxic therapy, reduces pain, breathlessness, depression and reactive anxiety symptoms, improves general health and functional status in patients with OA, having post-COVID syndrome.

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Сlinical Efficacy of Individually Dosed Intermittent Hypoxia-Hyperoxic Therapy in Osteoarthritis Patients with Post-Covid Syndrome

Orlova

Lyamina

Skorobogatyth

et al. 2022

Bulletin of Rehabilitation Medicine

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Hypoxic Conditioning in Rehabilitation and Secondary Prevention Programs in Cardiac Patients with Multimorbidity: a Review

Lyamina

Spirina²,

Глазачев

2022

Bulletin of Rehabilitation Medicine

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INTORDUCTION. Patients with multiple chronic diseases are at higher risk of premature death, hospitalization, longer hospital stays, and reduced health-related quality of life compared to patients with a single disease. On the other hand, the presence of comorbid conditions limits the enrolment of traditional exercise-based cardiac rehabilitation programs. It is predicted that as life expectancy increases, the level of multimorbidity will increase, making it even more important to find new additional methods and technologies for the rehabilitation of cardiac patients with comorbidities. AIM. To analyze the data from the current publications or to define the validity and effectiveness of using different hypoxic conditioning regimens in cardiac patients with concomitant chronic pathology (arterial hypertension, obesity, diabetes mellitus, and chronic bronchopulmonary diseases) as well as in multimorbid elderly patients. MATERIAL AND METHODS. The search for relevant papers was carried out using the Medline, e-library, and Web of Science Core Collection databases, as well as the following keywords: “hypoxic conditioning”, “hypoxic training”, “hypoxic therapy”, “interval hypoxic therapy”, “intermittent hypoxia”, “hypoxic conditioning”, “interval hypoxia training”, and “hypoxic exposure”. The analysis included publications regarding the use of the hypoxic conditioning method in cardiac and elderly patients with multimorbid pathology, as well as publications on the use of the method in the rehabilitation of patients with certain nosologies to identify potential mechanisms in correcting bronchopulmonary violations and lipid and carbohydrate metabolism disorders. The last search date was April 05, 2022. RESULTS. Most of the analyzed studies proved that the hypoxic conditioning technology in passive interval exposure regimes is an effective method for non-pharmacological correction of cardiometabolic risks in cardiac patients with multimorbid pathology and can increase exercise tolerance, optimize hemodynamic parameters (HR, SBP and DBP), reduce the manifestations of bronchial obstruction and respiratory failure, and improve cognitive function and metabolic indicators. Personalized physical activity doses in oxygen-depleted ambient air appear to be promising, but require additional studies to establish optimal application protocols. CONCLUSION. The data presented may recommend hypoxic conditioning technologies for wider implementation in cardiac rehabilitation programs for patients with multimorbid pathologies.

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Intermittent hypoxic conditioning: experience and potential in cardiac rehabilitation programs

Cited by 2 publications

References 31 publications

Сlinical Efficacy of Individually Dosed Intermittent Hypoxia-Hyperoxic Therapy in Osteoarthritis Patients with Post-Covid Syndrome

Сlinical Efficacy of Individually Dosed Intermittent Hypoxia-Hyperoxic Therapy in Osteoarthritis Patients with Post-Covid Syndrome

Hypoxic Conditioning in Rehabilitation and Secondary Prevention Programs in Cardiac Patients with Multimorbidity: a Review

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