Effects of systematic cardiac rehabilitation training in elderly patients with unstable angina following cardiac stent implantation

Table 2 Comparison of cardiopulmonary exercise function and echocardiographic indexes between the two groups (mean ± SD)

		Rehabilitation group	Conventional group	t	P value
VO2 Max (mL/kg/min)	Before the intervention	17.86 ± 2.90	16.99 ± 2.51	1.658	0.100
	After the intervention	21.46 ± 3.18a	19.99 ± 2.79a	2.540	0.013
AT (mL/kg/min)	Before the intervention	12.96 ± 2.49	13.60 ± 2.34	-1.370	0.174
	After the intervention	15.20 ± 2.29a	15.05 ± 2.79a	0.304	0.762
Maximum metabolic equivalents	Before the intervention	5.28 ± 0.96	5.33 ± 0.82	-0.289	0.773
	After the intervention	6.18 ± 0.93a	5.73 ± 0.77a	2.724	0.008
LVEF (%)	Before the intervention	44.63 ± 4.32	45.90 ± 3.32	-1.703	0.092
	After the intervention	53.65 ± 4.70a	51.21 ± 4.45a	2.757	0.007
LVEDD (mm)	Before the intervention	58.80 ± 5.68	57.00 ± 5.44	1.674	0.097
	After the intervention	68.72 ± 6.54a	65.36 ± 5.67a	2.837	0.005
LVESD (mm)	Before the intervention	48.11 ± 5.30	46.58 ± 4.50	1.608	0.111
	After the intervention	38.93 ± 3.82a	42.49 ± 4.62a	-4.347	0.000

^aP < 0.05 when compared with the group before intervention.

LVEF: Left ventricular ejection fraction; LVEDD: Left ventricular end-diastolic diameter; LVESD: Left ventricular end-systolic diameter.