Patients six months after acute myocardial infarction may be induced acute myocardial ischemia and heart failure during heavy physical labor, so patients should avoid heavy physical labor. Patients after acute myocardial infarction, although after treatment, the coronary blood vessels have been reopened, but the cardiomyocytes still have different degrees of necrosis and damage. After the blood vessels are restored, the necrotic myocardial cells cannot be regenerated, and the damaged myocardial cells need time to be repaired, and the recovery of the patient’s heart function also needs time, if the patient carries out heavy physical labor during the period of recovery of the heart function, it will aggravate the damage of the myocardium. It is generally recommended that patients avoid heavy physical activities in the early postoperative period, moderate physical exercise, and consult a doctor promptly if symptoms such as chest pain or chest tightness occur during activities.