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The acute effect of respiratory muscle training on microcirculation in patients with chronic heart failure

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Εθνικόν και Καποδιστριακόν Πανεπιστήμιον Αθηνών, Πρόγραμμα Μεταπτυχιακών Σπουδών «Μονάδες Εντατικής Θεραπείας»   

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The acute effect of respiratory muscle training on microcirculation in patients with chronic heart failure (EN)
Rovina, Nikoleta
Nanas, Serafeim
Vasileiadis, Ioannis
Karatzanos, Eleftherios
Briasoulis, Alexandros
Papadopoulou, Elektra
Katsoula, Christina
Vasileiou, Ioannis
Routsi, Christina
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
2023-04-11
Background: Patients with chronic heart failure (CHF) present microcirculation alterations and vascular endothelial dysfunction. Exercise training programs have been shown to improve the functional status of these patients, however less is known yet about the acute systemic effect of exercise on peripheral muscle microcirculation. The aim of the present study was to investigate the acute effect of a respiratory muscle exercise bout on the microcirculation of non-exercising muscles (systemic effect). Materials and Methods: Thirty-four (30♂/4♀) stable CHF patients, with a mean age of61.4±9.2 years, ejection fraction (EF): 33.9±7.8%, maximal inspiratory pressure (MIP): 78.2±27.1 cmH2O, VO2max: 17.5±4.05 ml/kg/min, VE/VCO2 slope: 32.7±6.4 and a New York Heart Association classification (NYHA) ≥ ΙΙ participated in the study. Microcirculatory assessment was performed at rest and immediately after the respiratory exercise program (5 sets/10 repetitions, training load: 60% of MIP). Basal tissue oxygen saturation (StO2),oxygen consumption rate (OCR) and reperfusion rate (RR) were measured utilizing near-infrared spectroscopy(NIRS) at the thenar muscle along with the vascular occlusion test (VOT). Results: RR (%/min), following the release of vascular occlusion, as well as OCR (%/min) increased after the respiratory exercise program (from 3.4±1.6 to 3.9±1.7, p=0.007, and from 12.7±3.8 to 13.2±3.9, p=0.021 respectively), whereas the corresponding basal StO2values difference did not reach the level of statistical significance (from 85.5±6.4. to 84.7±6.2, p=0.065). Conclusions: In the present study, concerning patients with CHF, after an acute respiratory exercise bout, dynamic microcirculatory indices assessed by NIRS in peripheral, non-exercising muscles, were significantly altered. (EN)
chronic heart failure (EN)
acute exercise (EN)
microcirculation (EN)
Respiratory muscle training (EN)
Health and Research Journal
English
Postgraduate Program "Intensive Care Units" National and Kapodistrian University of Athens (EN)
2459-3192
Health & Research Journal; Τόμ. 9 Αρ. 2 (2023): Volume 9 Issue 2 April - June 2023; 96-103 (EL)
Health & Research Journal; Vol. 9 No. 2 (2023): Volume 9 Issue 2 April - June 2023; 96-103 (EN)
Copyright (c) 2023 Health & Research Journal (EN)
Εθνικόν και Καποδιστριακόν Πανεπιστήμιον Αθηνών, Πρόγραμμα Μεταπτυχιακών Σπουδών «Μονάδες Εντατικής Θεραπείας»
Health and Research Journal
Original Articles



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