The influence of aerobic fitness status on ventilatory efficiency in patients with coronary artery disease.

Objective: To test the hypotheses that 1) coronary artery disease patients with lower aerobic fitness exhibit a lower ventilatory efficiency and 2) coronary artery disease patients with lower initial aerobic fitness exhibit greater improvements in ventilatory efficiency with aerobic exercise training.

Method: A total of 123 patients (61.0±0.

Effect of continuous and interval exercise training on the PETCO2 response during a graded exercise test in patients with coronary artery disease.

Objective: The purpose of this study was to evaluate the following: 1) the effects of continuous exercise training and interval exercise training on the end-tidal carbon dioxide pressure (PETCO2) response during a graded exercise test in patients with coronary artery disease; and 2) the effects of exercise training modalities on the association between PETCO2 at the ventilatory anaerobic threshold (VAT) and indicators of ventilatory efficiency and cardiorespiratory fitness in patients with coronary artery disease.

Methods: Thirty-seven patients (59.7 + 1.