Inclusion Criteria:

1. Age between 18 and 60 years;

2. According to the WHO definition: one or more systemic involvement present 3 months
after the diagnosis of a new crown infection, and at least 2 of these months cannot be
explained by other diseases

3. 2D-STE suggestive of GLSAVG: -17% ≤ men ≤ -10%, -18% ≤ women ≤ -10%;

4. Consent for enrollment based on the degree of myocardial injury, as diagnosed by a
clinician;

5. Signing the informed consent form with the consent of the patient or his/her family
members

Exclusion Criteria:

- (1) Previous history of coronary atherosclerotic heart disease and heart failure; (2)
Combination of severe arrhythmia or cardiogenic shock; (3) Combination of severe
hypertension, hypertrophic cardiomyopathy, valvular disease of moderate or higher
grade, acute myocarditis or pericarditis; (4) Combination of any disease that severely
affects limb movement, such as musculoskeletal system disease or severe hepatic or
renal insufficiency; (5) Combination of progressive malignant tumors, infectious
diseases, bleeding disorders, autoimmune diseases, etc; Those who have serious mental
illness and are unable to cooperate