1. People diagnosed with COVID-19 who were hospitalised due to the severity of their COVID-19 infection and who attend a Post-COVID Respiratory Clinic at RPAH or Concord Hospital. 2. Sex: All genders 3. Age range: greater than or equal to 18 years old 4. Identified by treating physician as suitable for rehabilitation 5. Willingness to provide informed consent and willingness to participate and comply with the study requirements.

1. People diagnosed with COVID-19 who were hospitalised due to the severity of their COVID-19 infection and who attend a Post-COVID Respiratory Clinic at RPAH or Concord Hospital. 2. Sex: All genders 3. Age range: greater than or equal to 18 years old 4. Identified by treating physician as suitable for rehabilitation 5. Willingness to provide informed consent and willingness to participate and comply with the study requirements.