At present, many hospitals have set up special rehabilitation wards in cardiovascular department. After the acute phase of myocardial infarction, patients will be given rehabilitation training guidance. Through the instrument inspection, it can even be judged how long the patient can persist under a certain amount of exercise, even to seconds. But for patients with severe heart failure, it is not suitable for running, which will obviously increase the burden on the heart, induce acute heart failure and even sudden death.