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. 2013 Dec 31;15(1):109. doi: 10.1186/1532-429X-15-109

Table 2.

Obesity reduces left ventricular strains, torsion and synchrony in mice

  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.