Table 2.
Region | Low-fat diet | High-fat diet | Change due to high-fat diet | p value | |
---|---|---|---|---|---|
Radial strain (%) |
Endo |
36 ± 2 |
38 ± 8 |
+5% |
0.690 |
Epi |
24 ± 7 |
16 ± 2 |
−53% |
0.032 |
|
Circumferential strain (%) |
Endo |
17 ± 1 |
15 ± 1 |
−12% |
0.028 |
Epi |
9.4 ± 0.6 |
6.7 ± 0.6 |
−40% |
0.008 |
|
Longitudinal strain (%) |
Endo |
13 ± 1 |
12 ± 2 |
−6% |
0.602 |
Epi |
11 ± 0.8 |
9.3 ± 1.2 |
−19% |
0.056 |
|
Peak torsion (o/cm) |
N/A |
8.8 ± 1.9 |
6.6 ± 0.5 |
−34% |
0.028 |
Radial uniformity of strain (dimensionless) |
Average |
0.95 ± 0.02 |
0.91 ± 0.03 |
−5% |
0.032 |
Circumferential uniformity of strain (dimensionless) |
Average |
0.99 ± 0.01 |
0.98 ± 0.01 |
−1% |
0.151 |
Heart rate (bpm) | N/A | 457 ± 35 | 503 ± 38 | +10% | 0.08 |
Values are mean ± standard deviation, n = 5 in each group. Endo = subendocardium, Epi = subepicardium.