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

• Autor(a) principal: Prado, Danilo M.L.
• Data de Publicação: 2015
• Outros Autores: Rocco, Enéas A., Silva, Alexandre G., Silva, Priscila F., Lazzari, Jaqueline M., Assumpção, Gabriela L., Thies, Sheyla B., Suzaki, Claudia Y., Puig, Raphael S., Furlan, Valter
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Clinics
• Texto Completo: https://www.revistas.usp.br/clinics/article/view/96942

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±0.7 years) with coronary artery disease were divided according to aerobic fitness status into 3 groups: group 1 (n = 34, peak VO2;17.5 and ;24.5 ml/kg/min). All patients performed a cardiorespiratory exercise test on a treadmill. Ventilatory efficiency was determined by the lowest VE/VCO2 ratio observed. The exercise training program comprised moderate-intensity aerobic exercise performed 3 times per week for 3 months. Clinicaltrials.gov: NCT02106533 RESULTS: Before intervention, group 1 exhibited both lower peak VO2 and lower ventilatory efficiency compared with the other 2 groups (p