The main concern in post COVID-19 patients is the involvement of respiratory system and cardiovascular system which may result in dyspnea, low blood oxygen saturation, and decrease cardiopulmonary efficiency.~In cases of post COVID-19 patients with COPD their state is deconditioned and more critical than normal to be either in the zone of progression or regression or stability as the studies showed that handling of these cases during (3-6 months post-COVID) will prevent these symptoms from becoming permanent.
The purpose of the study is to determine the difference between The Breather respiratory muscle trainer and pulmonary rehabilitation in patients with COPD post COVID-19.