Effect of Early Exercise Rehabilitation on Cardiopulmonary Function and Quality of Life in Patients after Coronary Artery Bypass Grafting

Table 2

Comparison of cardiac function parameters before and after intervention between the two groups (x̅ ± s).

Group	Time	LVEF (%)	LVEDD (mm)	LVESD (mm)
Control group (n = 40)	Preintervention	52.49 ± 7.81	50.27 ± 6.35	47.31 ± 5.79
	Postintervention	58.91 ± 10.03	46.43 ± 5.86	42.15 ± 4.48
	t-value	3.194	2.811	4.458
	-value	<0.001	0.001	<0.001
Study group (n = 40)	Preintervention	53.16 ± 7.58	50.09 ± 6.32	47.22 ± 5.61
	Postintervention	63.04 ± 11.69	43.26 ± 5.07	38.60 ± 4.13
	t-value	4.485	5.331	7.826
	-value	<0.001	<0.001	<0.001

Note: Compared with the control group after intervention, .