The chief complaint of many patients with chronic obstructive pulmonary disease (COPD) is
that they are no longer able to carry out or maintain an activity of which they were previously …

INTRODUCTION: The application of expiratory positive airway pressure (EPAP) in patients
with COPD during exercise may reduce dynamic hyperinflation, while, on the other hand, it …

Background: Dynamic hyperinflation due to increased respiratory frequency during exercise
is associated with limitations in exercise capacity in patients with moderately severe chronic …

INTRODUCTION: Lung hyperinflation is related to exertional dyspnoea, exercise intolerance
and reduced physical activity in COPD patients. AIMS: To investigate the effects of …

Background One of the contributors to exercise limitation in COPD is dynamic hyperinflation.
Although dynamic hyperinflation appears to occur during several exercise protocols in …

Plethysmography is the reference method and requires rigorous methodology, particularly in
patients with severe airflow limitation. Dilution techniques (nitrogen or most often helium) …

Background Dynamic hyperinflation (DH) is a major contributor to exercise limitation in
chronic obstructive pulmonary disease (COPD). Therefore, we aimed to elucidate the …

Background: Studies examining the physiological interactions of oxygen (O2) and
bronchodilators (BD) during exercise in chronic obstructive pulmonary disease (COPD) …

Background The relevance of screening for airway obstruction in subjects not complaining of
COPD symptoms may depend on the definition of airway obstruction. Response to exercise …

RATIONALE: Patients with mild chronic obstructive pulmonary disease (COPD) present
abnormal ventilatory mechanics during exercise and may require bronchodilator therapy …