Introduction
The COVID-19 pandemic is a highly infectious disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and has seriously affected human life and the global economy. Initially detected in Wuhan, China, in December 2019, the outbreak has spread rapidly around the world, with 8.98 million confirmed cases as of February 8, 2023. Coronavirus is a multi-system disease, common respiratory system problems, but also accompanied by musculoskeletal, endocrine, gastrointestinal problems,[1] similarly, symptoms such as fever, fatigue, loss or change to your sense of smell or taste are also associated with the coronavirus infection, COVID-19 affects all age groups, but it can be more serious[2, 3] in elderly patients or those with other medical conditions, and symptoms are mostly mild in children[4] or people under the age of 18. A meta-analysis of respiratory diseases such as Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS) showed that anxiety and depression persisted even after six months of decline in exercise and quality of life among infected survivors,[5] Stephen et al. point out that COVID-19 has a similar effect on the human body after infection.[6] Research has found that sleep has a protective effect on immunity, people will get sick[7] easily if they don’t get enough sleep, and when people are infected with COVID-19, they may develop a range of symptoms that can also lead to poor sleep quality, so it is crucial to carry out recovery after COVID-19 infection.
The purpose of this study was to understand the infection status, recovery situation, anxiety and sleep quality of some Chinese residents who recovered from COVID-19 during the pandemic, to explore the factors affecting recovery status and physical and mental health, to help people who turned negative after infection develop scientific exercise prescriptions, and timely sort out the possible psychological and sleep problems of these people.