Table 1.
Echocardiographic data from high intensity exercised animals after 4 weeks of training compared with age-matched sedentary CTRLs
| Criteria | CTRL | HI | Significance |
|---|---|---|---|
| SWTD (mm) | 1.94 ± 0.05 | 2.26 ± 0.08 | P = 0.004 |
| SWTS (mm) | 3.06 ± 0.09 | 3.55 ± 0.07 | P = 0.002 |
| LVEDD (mm) | 6.43 ± 0.15 | 6.65 ± 0.11 | P = 0.262 |
| LVESD (mm) | 3.43 ± 0.07 | 2.92 ± 0.07 | P = 0.001 |
| PWTD (mm) | 1.88 ± 0.10 | 2.14 ± 0.09 | P = 0.044 |
| PWTS (mm) | 2.84 ± 0.17 | 3.25 ± 0.13 | P = 0.048 |
| Fractional shortening (%) | 46.66 ± 0.93 | 56.04 ± 0.48 | P = 0.000 |
| Ejection fraction (%) | 71.51 ± 0.98 | 80.66 ± 0.42 | P = 0.000 |
| Body weight (g) | 388.68 ± 13.30 | 387.72 ± 3.66 | P = 0.941 |
| LV mass (mg) | 848.00 ± 44.89 | 1097.30 ± 44.46 | P = 0.002 |
| LV/body weight ratio (mg/g) | 2.18 ± 0.10 | 2.83 ± 0.12 | P = 0.002 |
SWTD, septal wall thickness in diastole; SWTS, septal wall thickness in systole; LVEDD, left ventricle end-diastolic diameter; LVESD, left ventricle end-systolic diameter; PWTD, posterior wall thickness in diastole; PWTS, posterior wall thickness in systole (data are mean ± SEM, n = 6 for all).