Able to communicate effectively (able to speak, understand, read, and comprehend Turkish),
No relapse within the past three months,
Clinically stable for at least the past one month,
No participation in respiratory-based rehabilitation programs within the past six months,
Voluntary participation in the study.
You may not be if
Presence of neurological disorders other than multiple sclerosis,
Presence of autoimmune diseases other than multiple sclerosis (e.g., rheumatoid arthritis, type 1 diabetes mellitus, systemic lupus erythematosus),
Presence of chronic cardiac or pulmonary diseases that may affect respiratory muscle strength or pulmonary function, such as chronic obstructive pulmonary disease (COPD), asthma, interstitial lung disease, or heart failure,
