COVID-19 has a high spread rate, millions of people have been infected around the world. Patients complained of different symptoms as fever, dry cough and fatigue which is mild in about 80% of cases, but the severity of the case may progress to develop a respiratory distress or respiratory failure, which may require the need for intensive care unit (ICU) Many patients with mild or severe COVID-19 do not make a full recovery and have a wide range of chronic symptoms for weeks or months after infection.~Post-COVID-19 syndrome is defined by persistent clinical signs and symptoms that appear while or after suffering COVID-19, persist for more than 12 weeks and cannot be explained by an alternative diagnosis.~Dyspnea is one of the most prevalent symptoms in post-covid-19 patients in up to 29% of patients with post COVID-19 syndrome.~Also, persistent dyspnea in post COVID-19 infection is frequent, it is so far, of unknown mechanism. Cardiopulmonary Exercise Test (CPET) is currently the gold standard technique in the differential diagnosis of dyspnea.~Cardiopulmonary exercise testing (CPET) is useful in the assessment of subjects with chronic lung conditions as it may help to: 1) recognize physiological factors limiting exercise (with or without the presence of psychogenic limiting factors); 2) identify these factors as potential therapeutic targets; 3) allow quantification of the level of impairment; 4) assess the effects of an intervention; and 5) provide prognostic information.
COVID-19 has a high spread rate, millions of people have been infected around the world. Patients complained of different symptoms as fever, dry cough and fatigue which is mild in about 80% of cases, but the severity of the case may progress to develop a respiratory distress or respiratory failure, which may require the need for intensive care unit (ICU)