www.jcrpjournal.com Exercise and Diastolic Function / 165

■ PURPOSE: Previous investigations have reported a relationship between variables obtained from echocardiography with tissue Doppler imaging (TDI) and cardiopulmonary exercise testing (CPX) in systolic heart failure (HF) cohorts. The purpose of the present investigation was to perform a comparative analysis between echocardiography with TDI and CPX in patients with HF and normal ejection fraction (NEF). ■ METHODS: Patients with HF-NEF (N 32) underwent echocardiography with TDI and CPX to determine the following variables: (1) the ratio between mitral early velocity (E) and mitral annular velocity (E), (2) ejection fraction, (3) left ventricular (LV) mass, (4) left ventricular end systolic volume, (5) peak oxygen uptake (V̇O2), (6) ventilatory efficien-cy, (7) the partial pressure of end-tidal carbon dioxide (PETCO2) at rest and peak exercise, and (8) heart rate recovery at 1 minute (HRR1). ■ RESULTS: Pearson correlation revealed that E/E was significantly correlate