Early-Phase Recovery of Cardiorespiratory Measurements after Maximal Cardiopulmonary Exercise Testing in Patients with Chronic Obstructive Pulmonary Disease
| Autor: | Marie Bellefleur, David Debeaumont, Alain Boutry, Marie Netchitailo, Antoine Cuvelier, Jean-François Muir, Catherine Tardif, Jérémy Coquart |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Pulmonary Medicine, Vol 2016 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2090-1836 2090-1844 |
| DOI: | 10.1155/2016/9160781 |
| Popis: | Background. This study investigated respiratory gas exchanges and heart rate (HR) kinetics during early-phase recovery after a maximal cardiopulmonary exercise test (CPET) in patients with chronic obstructive pulmonary disease (COPD) grouped according to airflow limitation. Methods. Thirty control individuals (control group: CG) and 81 COPD patients (45 with “mild” or “moderate” airflow limitation, COPDI-II, versus 36 with “severe” or “very severe” COPD, COPDIII-IV) performed a maximal CPET. The first 3 min of recovery kinetics was investigated for oxygen uptake (V˙O2), minute ventilation (V˙E), respiratory equivalence, and HR. The time for V˙O2 to reach 25% (T1/4V˙O2) of peak value was also determined and compared. Results. The V˙O2, V˙E, and HR recovery kinetics were significantly slower in both COPD groups than CG (p |
| Databáze: | Directory of Open Access Journals |
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