Inspiratory Muscle Trainer and Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) COVID-19 Persistent Symptoms

Inclusion Criteria: * sixty non hospitalized negative post covid-19 * men * cigarette smokers * 40-60 years old * stage II Hypertensive (160-179 / 100-109 mmHg) * Oxygen saturation less than 94% * Severity of disease (Moderate Covid-19 affection) * Body mass index (BMI) ranged from 25 to 29.9 kg/m2 * hemodynamically stable * at least 4 weeks since first COVID-19 swab at time of screening Exclusion Criteria: * Patients with red flag indicators as chest pain, critical drop of oxygen saturation which require oxygen supply, severe level of hypoxia (blue lips) * Unconscious patient * Positive covid-19 patients * Patients with cognitive impairment * End-stage of chronic diseases * BMI more than 30 kg/m2 * History of other cardiovascular disease as coronary artery disease, valvular heart disease, cardiac arrhythmias, congestive heart failure, myocardial infarction, stroke, transient ischemic attack, or peripheral vascular disease * Neurological, neuromuscular, and musculoskeletal limitations * Current active infection * Developmental disability or cognitive impairment that in the opinion of the investigator would preclude adequate comprehension of the informed consent form and/or ability to record the necessary study measurements. * Participation in a clinical study or other type of research in the past 30 days