The following parameters were measured: left ventricular (LV) mass (A), left ventricular internal diameter (LVID, B and C), left ventricular posterior wall thickness (LVPW, D and E), interventricular septum wall thickness (IVS, F and G) at end-diastole (d, left panels B, D, F) and end-systole (s, right panels C, E, G). Boxes indicate the minimum, 25th percentile, median, 75th percentile, and maximum. BPM indicates beat per minute. In males, N equals 4 and 5 for Fiber and Chow groups, respectively. In females N equals 3 and 8 in Fiber and Chow groups, respectively. Significant differences between dietary groups or sexes are indicated with * for p<0.05. Kruskal-Wallis results are indicated on each panel.