inclusion criteria: * covid 19 infection confirmed with a positive pcr (polymerase chain reaction) sars-cov-2 (severe scute respiratory syndrome coronavirus type 2) test less than 12 moths prior to intervention * more than 14 days from the day of obtaining a positive pcr test result for sars-cov-2 or discharge from hospital. * mmrc (modified medical research council) score ≥1 * age \>18 years * informed consent signed by patient to conduct the study

inclusion criteria: * covid 19 infection confirmed with a positive pcr (polymerase chain reaction) sars-cov-2 (severe scute respiratory syndrome coronavirus type 2) test less than 12 moths prior to intervention * more than 14 days from the day of obtaining a positive pcr test result for sars-cov-2 or discharge from hospital. * mmrc (modified medical research council) score ≥1 * age \>18 years * informed consent signed by patient to conduct the study

inclusion criteria: covid 19 infection confirmed with a positive pcr (polymerase chain reaction) sars-cov-2 (severe scute respiratory syndrome coronavirus type 2) test less than 12 moths prior to intervention more than 14 days from the day of obtaining a positive pcr test result for sars-cov-2 or discharge from hospital. mmrc (modified medical research council) score ≥1 age >18 years informed consent signed by patient to conduct the study

inclusion criteria: covid 19 infection confirmed with a positive pcr (polymerase chain reaction) sars-cov-2 (severe scute respiratory syndrome coronavirus type 2) test less than 12 moths prior to intervention more than 14 days from the day of obtaining a positive pcr test result for sars-cov-2 or discharge from hospital. mmrc (modified medical research council) score ≥1 age >18 years informed consent signed by patient to conduct the study