A Clinical Study on the Effect of Cardiopulmonary Function and Quality of Life in Patients With Acute Coronary Syndrome Complicated by Heart Failure by "Lying-Sitting-Standing" Sequential Baduanjin

Inclusion Criteria: * Patients meeting the diagnostic criteria for ACS (including unstable angina, non-ST-segment elevation myocardial infarction, and ST-segment elevation myocardial infarction) * Complicated by heart failure during hospitalization * Age ≤ 85 years * Muscle strength ≥ grade 3 * No history of mental illness, conscious and able to cooperate independently with this study * Voluntarily participate in this study and sign the informed consent form Exclusion Criteria: * Patients with persistent heart failure symptoms or NYHA functional class IV despite optimal pharmacological therapy; * Patients with contraindications to cardiac rehabilitation, such as uncontrolled hypertension, uncontrolled arrhythmias, or hemodynamic instability; * Patients with untreated structural heart disease, such as heart failure caused by valvular heart disease or congenital heart disease; * Patients in the acute phase of various diseases, such as severe infection, deep vein thrombosis, or severe hepatic or renal failure; * Patients with disabilities, bone or joint diseases, or neurological disorders that preclude participation in Baduanjin exercises; * Patients with a life expectancy of less than one year; * Patients currently participating in other clinical trials.