Table 2.
Mean (SD) longitudinal, transmural and circumferential strains from B-mode and M-mode recordings, all in %
| Age (years) | n | εL 4 walls |
εL 6 walls |
Septal εT | Inferolateral εT | Mean εT | Endocardial εC | Midwall εC | External εC |
| Women | |||||||||
| <40 | 208 | −18.1 (2.0) | −17.8 (2.4) | 45.8 (25.7) | 77.5 (29.4) | 61.7 (20.2) | −36.6 (6.1) | −23.9 (4.1) | −14.1 (3.3) |
| 40–60 | 336 | −17.0 (2.2) | −16.6 (2.2) | 44.6 (23.7) | 71.2 (27.6) | 57.9 (19.6) | −36.5 (6.9) | −23.2 (4.8) | −13.2 (4.2) |
| >60 | 119 | −14.8 (2.1) | −14.3 (2.4) | 43.7 (22.6) | 65.2 (30.4) | 54.5 (19.8) | −36.0 (9.1) | −22.3 (5.6) | −12.1 (4.2) |
| Total | 663 | −17.0 (2.4) | −16.6 (2.5) | 44.8 (24.1) | 72.2 (28.9) | 58.5 (19.9) | −36.4 (7.1) | −23.2 (4.8) | −13.3 (4.0) |
| Men | |||||||||
| <40 | 126 | −16.5 (2.0) | −16.6 (2.0) | 44.5 (19.9) | 68.3 (29.8) | 56.4 (19.1) | −35.5 (6.9) | −22.4 (4.6) | −12.6 (3.7) |
| 40–60 | 327 | −15.4 (1.9) | −15.0 (2.0) | 44.1 (22.6) | 65.2 (27.0) | 54.6 (19.7) | −35.8 (7.4) | −22.2 (4.9) | −12.2 (3.8) |
| >60 | 150 | −14.9 (1.9) | −14.3 (2.4) | 41.3 (18.8) | 62.2 (23.4) | 51.8 (16.4) | −36.0 (8.0) | −21.9 (5.2) | −11.8 (4.4) |
| Total | 603 | −15.5 (2.0) | −15.1 (2.2) | 43.5 (21.1) | 65.2 (26.8) | 54.2 (18.8) | −35.8 (7.5) | −22.2 (4.9) | −12.2 (3.9) |
| All | 1266 | −16.3 (2.4) | −15.9 (2.5) | 44.2 (22.7) | 68.9 (28.1) | 56.5 (19.6) | −36.1 (7.3) | −22.7 (4.9) | −12.8 (4.0) |
| Relative SD | 0.15 | 0.16 | 0.51 | 0.41 | 0.35 | 0.20 | 0.22 | 0.31 | |
Measurements are mean (SD).
εC, circumferential strain; εL, longitudinal strain; εT, transmural strain.n, number of subjects;