Ventilatory Response to Carbon Dioxide Output in Subjects With Congestive Heart Failure and in Patients with COPD With Comparable Exercise Capacity

Abstract

The ventilatory response to V̇CO2 during exercise was significantly different between subjects with congestive heart failure and those with COPD in terms of the V̇E/V̇CO2 slope with moderate-to-severe reduction in exercise capacity and in terms of the V̇E/V̇CO2 intercept regardless of exercise capacity.