Table 2. Echocardiographic parameters and exercise capacity of patients.
| LVFP elevated after exercise (n = 39) | LVFP normal (n = 106) | P | |
| Echocardiography | |||
| LVEDD, mm | 42.3 ± 13.4 | 40.9 ± 15.7 | 0.519 |
| LVMI, g/m2 | 73.9 ± 11.7 | 71.3 ± 14.6 | 0.419 |
| LVEF, % | 69.3 ± 5.3 | 69.4 ± 5.1 | 0.909 |
| LAA, cm2 | 23.6 ± 4.3 | 22.5 ± 5.5 | 0.319 |
| E velocity rest, m/s | 0.7 ± 0.2 | 0.7 ± 0.1 | 0.920 |
| e' rest, cm/s | 9.2 ± 1.7 | 10.4 ± 2.3 | 0.005 |
| E/e' rest | 7.9 ± 0.7 | 7.1 ± 0.9 | < 0.001 |
| E velocity stress, m/s | 1.1 ± 0.2 | 1.0 ± 0.2 | 0.001 |
| e' stress, cm/s | 10.6 ± 1.6 | 12.3 ± 2.7 | < 0.001 |
| Exercise capacity | |||
| VO2 peak, mL/minper kilogram | 21.7 ± 2.3 | 26.4 ± 3.8 | < 0.001 |
| AT, mL/min per kilogram | 19.9 ± 2.5 | 26.0 ± 4.0 | < 0.001 |
| Exercise time duration, min | 6.2 ± 0.8 | 7.0 ± 1.3 | < 0.001 |
Data are represented as mean ± SD. AT: anaerobic threshold; E: early diastolic mitral inflow velocity; e': early diastolic mitral annular velocity; LAA: left atrial area; LVEDD: left ventricular end diastolic diameter; LVEF: Left ventricular ejection fraction; LVFP: left ventricular filling pressure; LVMI: left ventricular mass index; NT-proBNP: N-terminal pro-B-type natriuretic peptide; VO2 peak: peak oxygen uptake.