Post-discharge rehabilitation regimens for covid-19 patients have not been supported by high-quality evidence-based medical evidence.The first part of this study is a cross-sectional study.The contents of the study were the factors related to the dysfunction of COVID - 19 patients after discharge from the hospital in Wuhan.The second part of this study is a cohort study.To observe the functional changes of COVID-19 patients after discharge in hospital rehabilitation, home rehabilitation and no rehabilitation, in order to propose a more safe and effective rehabilitation program.

Inclusion Criteria:

• patients with definite diagnosis of COVID-19 normal or severe
• patients who entered the isolation point <3 days after discharge
• 18-80 years old
• agree to join the queue

Exclusion Criteria:

• body temperature >38°C
• heart rate >120 times/min or <40 times/min, systolic blood pressure <90mmHg or >180mmHg, respiratory rate >25 times/min in calm state.Or above vital signs fluctuate significantly.
• continuous oxygen therapy is required.
• patients with myocarditis, pulmonary hypertension, congestive heart failure, fresh venous thromboembolic diseases, unstable fractures and other inappropriate exercise
• patients with consciousness disorders, severe sequelae of cerebral infarction, cognitive dysfunction, mental disorders, severe balance disorders, and severe bone and joint diseases, which affect evaluation and treatment
• other conditions that cannot be cooperated with rehabilitation treatment

Patients with COVID-19 after discharge