Short Term Effects of Early Respiratory Muscle Training on Respiratory Muscle Strength in Inpatient Acute Stroke

This study aims to determine the early effectiveness of combined high-intensity interval inspiratory and expiratory muscle training in hospitalized patients with acute stroke. Participants will be assigned to receive either combined high-intensity interval inspiratory and expiratory muscle training or conventional diaphragmatic breathing exercises. The main questions this study aims to answer are whether the combined high-intensity interval inspiratory and expiratory muscle training can improve: * inspiratory muscle strength, measured using maximal inspiratory pressure; * expiratory muscle strength, measured using maximal expiratory pressure; * chest expansion, measured using thoracic expansion; and * the ability to sustain speech on a single breath, measured using the single-breath count test. Researchers will compare changes before and after the intervention between the two groups to determine whether combined high-intensity interval inspiratory and expiratory muscle training provides greater early improvement than conventional diaphragmatic breathing exercises in hospitalized patients with acute stroke.