Echocardiography:Effects of atrial systole (event b) and early ventricular systole (event d or e) on ventricular septum (VS) and the posterior left ventricular (LV) wall thickness. This is compared with the thickness of the respective walls before atrial systole (event a).
| Ventricular Septum | posterior LV wall | |||||
| Person No. | a | b | d | a | b | e |
| 1 | 10 | 10 | 10 | 12 | 11 | 13 |
| 2 | 9 | 9 | 8 | 11 | 10 | 10 |
| 3 | 8 | 7 | 7 | 11 | 10 | 10 |
| 4 | 10 | 9 | 10 | 11 | 11 | 11 |
| 5 | 10 | 10 | 10 | 10 | 10 | 11 |
| 6 | 8 | 8 | 8 | 10 | 9 | 9 |
| 7 | 9 | 9 | 9 | 10 | 9 | 9 |
| 8 | 11 | 11 | 10 | 12 | 11 | 11 |
| 9 | 11 | 11 | 11 | 11 | 10 | 10 |
| m | 9.6 | 9.3 | 9.2 | 10.9 | 10.1 | 10.4 |
| +/- I | 0.9 | 1.0 | 1.0 | 0.6 | 0.6 | 1.0 |