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The ramp exercise test has been widely used to evaluate cardiopulmonary responses to an incremental exercise load. This study was performed to clarify whether different slopes of the ramp exercise test influence exercise tolerance, exercise limiting factors, and respiratory pattern in patients with chronic obstructive pulmonary disease (COPD).

internal medicine

Cardiorespiratory Responses during Cycle Ergometer Exercise with Different Ramp Slope Increments in Patients with Chronic Obstructive Pulmonary Disease.