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Obstructive Lung Diseases: COPD I |

Assessment of Oxygen Uptake Efficiency Slope on Cardiopulmonary Functional Reserve for Patients with Chronic Obstructive Pulmonary Disease

Qimin Wang, MD
Author and Funding Information

Beijing Bo'ai Hospital, China Rehabilitation Research Centre, Beijing, China


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016;149(4_S):A370. doi:10.1016/j.chest.2016.02.385
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SESSION TITLE: COPD I

SESSION TYPE: Original Investigation Poster

PRESENTED ON: Saturday, April 16, 2016 at 11:45 AM - 12:45 PM

PURPOSE: To investigate the efficacy of oxygen uptake efficiency slope (OUES) on evaluation the cardiopulmonary function of patients with chronic obstructive pulmonary disease (COPD)

METHODS: The cardiopulmonary function of 74 stable COPD patients with the cardiopulmonary function of Ⅱ∼Ⅳ were evaluated, following a symptom-limited Steep protocol with simultaneous respiratory gas measurement, they were performed exercise tests on a treadmill, at the same the oxygen uptake (VO2), carbon dioxide production (VCO2), peak oxygen uptake (VO2peak), minute ventilation (VE), and respiratory gas exchange rate (RER) were measured. OUES was derived from the relation between VO2 and VE during incremental exercise and was determined by VO2=algVE+b, where a=OUES, to measure anaerobic threshold (VAT) meanwhile

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