Effect of high-intensity exercise on cerebral, respiratory and peripheral muscle oxygenation of HF and COPD-HF patients
| Autor: | Ross Arena, Audrey Borghi-Silva, Meliza Goi Roscani, Cássia da Luz Goulart, Guilherme Peixoto Tinoco Arêas, Sílvia Cristina Garcia de Moura, Luiz Carlos Soares de Carvalho Junior, Aparecida Maria Catai, Flávia Cristina Rossi Caruso, Thomas Beltrame, Renata Gonçalves Mendes, Polliana Batista dos Santos, Adriana S. Garcia de Araújo |
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| Rok vydání: | 2021 |
| Předmět: |
Pulmonary and Respiratory Medicine
medicine.medical_specialty 030204 cardiovascular system & hematology Work rate Critical Care and Intensive Care Medicine Pulmonary Disease Chronic Obstructive 03 medical and health sciences Oxygen Consumption 0302 clinical medicine Internal medicine Humans Medicine Respiratory system Exercise Peripheral muscle Heart Failure COPD Exercise Tolerance business.industry High intensity Oxygenation medicine.disease Oxygen Cross-Sectional Studies 030228 respiratory system Heart failure Exercise Test Cardiology Constant load Cardiology and Cardiovascular Medicine business |
| Zdroj: | Heart & Lung. 50:113-120 |
| ISSN: | 0147-9563 |
| Popis: | Objective To investigate cerebral oxygenation (Cox) responses as well as respiratory (Res) and active peripheral muscle (Pm) O2 delivery during high-intensity cycling exercise and contrast responses between patients with coexistent chronic obstructive pulmonary disease (COPD)-heart failure (HF) and HF alone. Methods Cross-sectional study involving 11 COPD-HF and 11 HF patients. On two different days, patients performed maximal incremental cardiopulmonary exercise testing (CPET) and constant load exercise on a cycle ergometer until the limit of tolerance (Tlim). The high-intensity exercise session was 80% of the peak CPET work rate. Relative blood concentrations of oxyhemoglobin ([O2Hb]), deoxyhemoglobin ([HHb]) of Res, Pm (right vastus lateralis) and Cox (pre-frontal) were measured using near infrared spectroscopy. Results We observed a greater decrease in [O2Hb] at a lower Tlim in COPD-HF when compared to HF (P |
| Databáze: | OpenAIRE |
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