[Retracted] Exercise Rehabilitation Improves Heart Function and Quality of Life in Elderly Patients with Chronic Heart Failure

Table 4

Comparison of changes in left ventricular systolic function before and after rehabilitation between the two groups.

Group	Number of cases	SV (ml)		EF (%)
		Before intervention	After the intervention	Before intervention	After the intervention
Control group	58	37.25 ± 3.32	41.38 ± 1.54	40.15 ± 5.56	45.12 ± 3.58
Test group	65	37.15 ± 2.15	43.2 ± 2.21	39.78 ± 4.48	46.82 ± 4.19