Ventilatory compensation during the incremental exercise test is inversely correlated with air trapping in COPD.

ABSTRACT: Background: Air trapping and gas exchange abnormalities are major causes of exercise limitation in chronic obstructive pulmonary disease (COPD). During incremental cardiopulmonary exercise testing, actual nadir values of ventilatory equivalents for carbon dioxide (V _E/VCO ₂) and oxygen (V _E/VO ₂) may be difficult to identify in COPD patients because of limited ventilatory compensation capacity. Therefore, we aimed in this exploratory study to detect a possible correlation between the magnitude of ventilation augmentation, as manifested by increments in ventilatory equivalents from nadir to peak exercise values and air trapping, detected with static testing.    Methods: In this observational study, we studied data obtained previously

SUBMITTER: Kuint R 

PROVIDER: S-EPMC7122427 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature