Clinical Study on the Effect of Different Exercise Modes Regulating BDNF on Cardiac Function and Exercise Tolerance in Patients with Stable Coronary Heart Disease

INTERVENTION: aerobic exercise group:aerobic exercise;Conventional treatment group:Conventional drug therapy + rehabilitation nursing;aerobic exercise combined with resistance exercise group:aerobic exercise combined with resistance exercise; CONDITION: Stable coronary artery disease PRIMARY OUTCOME: cardiac function;brain‐derived neurotrophic factor;cardio‐pulmonary function;heart rate variability; INCLUSION CRITERIA: 1. Diagnostic Criteria: (1) Meets the diagnostic criteria for SCAD as outlined in the "Guidelines for the Diagnosis and Treatment of Stable Coronary Heart Disease" (2018) issued by the Cardiovascular Disease Branch of the Chinese Medical Association and the Editorial Board of the "Chinese Journal of Cardiology", as well as the "Guidelines for Primary Care Diagnosis and Treatment of Stable Coronary Heart Disease" (2020), including chronic stable exertional angina, the stable phase following acute coronary syndrome, asymptomatic ischemic heart disease, spasm‐induced angina, and microvascular angina. History of myocardial infarction; coronary angiography confirming coronary artery stenosis >= 50%; non‐invasive testing confirming coronary artery stenosis or evidence of myocardial ischemia. (2) Meets the diagnostic criteria for XIONG BI in Traditional Chinese Medicine. Diagnosis is based on a holistic differential diagnosis through the integrated application of t