Effects of exercise training on diastolic and systolic dysfunction in patients with chronic heart failure

Figure 1 Changes in diastolic dysfunction grades. A: Pre- and post-number of grade-0, -I, -II, -III patients (P = 0.01, as assessed with Wilcoxon signed-rank test); B: Patients’ distribution according to pre- and post-level of grade (P = -0.06, as analyzed with McNemar-Bowker test); C: Number of patients that decreased grade or remained at the same grade in relation to baseline grade (P < 0.01, as assessed with χ² test).