inclusion criteria: * patients aged from 18 to 85 years old * with covid-19 documentation * undergoing oxygen therapy (nasal cannula, medium or high concentration mask or high flow nasal oxygen therapy) * able to move to pp by him/herself or with minimal assistance * written consent * hospitalized in covid medical department for less than 72 hours

inclusion criteria: * patients aged from 18 to 85 years old * with covid-19 documentation * undergoing oxygen therapy (nasal cannula, medium or high concentration mask or high flow nasal oxygen therapy) * able to move to pp by him/herself or with minimal assistance * written consent * hospitalized in covid medical department for less than 72 hours

inclusion criteria: - patients aged from 18 to 85 years old - with covid-19 documentation - undergoing oxygen therapy (nasal cannula, medium or high concentration mask or high flow nasal oxygen therapy) - able to move to pp by him/herself or with minimal assistance - written consent - hospitalized in covid medical department for less than 72 hours

inclusion criteria: - patients aged from 18 to 85 years old - with covid-19 documentation - undergoing oxygen therapy (nasal cannula, medium or high concentration mask or high flow nasal oxygen therapy) - able to move to pp by him/herself or with minimal assistance - written consent - hospitalized in covid medical department for less than 72 hours