Inclusion Criteria:

• Patients aged between 55 and 65 years.
• Both male and female participants.
• Chronic stroke patients (>6 months after stroke onset), including ischemic or hemorrhagic stroke confirmed by neuroimaging.
• Moderate gait impairment with gait speed ranging from 0.4 to 0.8 m/s.
• Ability to understand instructions and communicate sufficiently to participate in the study procedures.
• Breathing spontaneously without ventilatory support.
• No thoracic or abdominal surgery within the previous 6 months.
• No facial palsy, or mild facial palsy without limitation of labial occlusion.
• Ability to walk independently for at least 10 meters with or without an assistive device.
• Willingness to participate and provide written informed consent.

Exclusion Criteria:

• Unstable cardiovascular disease (e.g., recent myocardial infarction, uncontrolled hypertension, decompensated heart failure).
• Uncontrolled metabolic disease or poorly controlled diabetes mellitus.
• Severe pulmonary disease or respiratory impairment (e.g., severe COPD, hypoxemia, chronic cough, or sputum retention).
• Active malignancy.
• Presence of nasal feeding tube, tracheostomy tube, or any condition preventing implementation of the study procedures.
• Severe musculoskeletal disorders affecting gait performance (e.g., lower limb fracture, severe osteoarthritis, or amputation).
• Significant cognitive or communication impairment preventing reliable participation.
• Severe spasticity (Modified Ashworth Scale >3) or fixed contractures.
• Other neurological disorders affecting gait (e.g., Parkinson's disease, multiple sclerosis, spinal cord injury).
• Severe obesity (BMI ≥35 kg/m²) that may interfere with gait assessment or exercise performance.
• Previous participation in inspiratory muscle training programs.