Effect of exercise training on left ventricular remodeling in patients with myocardial infarction and possible mechanisms

Table 3 Cardiopulmonary exercise testing in rehabilitation exercise and control groups

	Baseline		6 mo after onset of myocardial infarction
	Control group (n = 30)	Exercise group (n = 30)	Control group (n = 30)	Exercise group (n = 30)
Exercise time (min)	8.19 ± 2.55	8.11 ± 2.69	9.37 ± 2.48a	11.89 ± 2.34b
Anaerobic threshold (mL/min)	958.64 ± 298.65	977.23 ± 288.33	1235.88 ± 347.56b	1388.07 ± 355.67b
Metabolic equivalent at anaerobic threshold	3.76 ± 1.05	3.89 ± 1.01	4.58 ± 1.06b	5.20 ± 1.19b
Peak oxygen uptake (mL/min)	1272.37 ± 346.85	1267.35 ± 322.84	1507.88 ± 398.46b	1664.67 ± 365.35b
Peak metabolic equivalent	4.98 ± 1.03	4.87 ± 0.98	5.62 ± 1.01b	6.38 ± 1.09b

Comparison of the second cardiopulmonary exercise testing (CPET) and the first CPET of the same group.

^aP < 0.05.

^bP < 0.01. CPET: Cardiopulmonary exercise testing.