Figure 1. Cardiac parameters of tachycardia and volume-overload models over the four weeks duration.

A: left ventricular end diastolic volume (LVEDV); B: ejection fraction (EF); C: cardiac output (CO); D: left ventricular systolic factor (LVSF). Sham, sham group; Tachy, tachycardia group; VOL, volume-overload group. #: p<0.05, One-way ANOVA analysis with post-hoc (Bonferroni) tests to verify the variation of cardiac parameters in time course.