This is a randomized controlled trial of the efficacy of an individualized, progressive, exercise program (strength, cardiovascular, and breathing exercises) in recovering people from the post-COVID-19 syndrome (i.e., patients who present symptoms \>12 weeks once the acute phase of the disease is over). The primary objective of the study is to evaluate the clinical efficacy and safety of a tailored exercise-based treatment relative to the control arm in improving the subject clinical status in both ambulatory and hospitalized post-COVID-19 syndrome patients. The main novelty of this trial compared to other exercise-based interventions is the development and proof of concept of a progressively, levelled exercise regime for people with physical activity intolerance and fatigue symptoms.
