To discuss the improvement of the seven steps of exercise rehabilitation to improve the cardiac function of patients with acute myocardial infarction after percutaneous coronary intervention (PCI), making patients to take care of themselves as early as possible.

A total of 60 cases of patients with acute myocardial infarction after stent implantation were selected to be admitted to our hospital from January to December 2016, using the random number table method to divide into the rehabilitation group (30 cases) and the control group (30 cases). The control group received PCI routine nursing and the rehabilitation group received seven steps of rehabilitation training. The left ventricular ejection fraction (LVEF) of the two groups was observed one day after operation. The LVEF and self-care ability of the two groups were observed nine days after operation. The evaluation of cardiac function adopted the heart color ultrasound, and the improved Barthel Index (MBI) was adopted in life self-care ability.

The first day after surgery, the incidence rate of LVEF below 50% in the rehabilitation group and control group were 53.30% (16/30) and 50.00% (15/30) respectively. There was no statistically significant difference between the two groups (χ² = 0.067, P > 0.05), the ninth day after surgery, the incidence rate of LVEF below 50% in the rehabilitation group and control group were 26.70% (6/30) and 46.70% (14/30), the two groups had statistically significant difference (χ² = 4.800, P < 0.05). The MBI scores of the recovery group and the control group were respectively 80.167 ± 4.111 and 64.200 ± 3.145 respectively. The two groups had statistically significant difference (t = 16.896, P < 0.01).

The rehabilitation training can significantly improve the cardiac function and self-management ability of patients after myocardial infarction, and can be used in clinic.

The seven step method of motion rehabilitation; Acute myocardial infarction; Cardiac function; Self-help ability