IMT in Asthma: Activity, Coping, Self-Management

Inclusion Criteria: * Being between the ages of 18-65 * Having been diagnosed with severe persistent, non-allergic asthma by a pulmonologist in accordance with the Global Initiative for Asthma (GINA) guideline criteria, * Patients with type 2 inflammation markers. According to accepted standards; peripheral eosinophils \<150/µL and/or negative skin prick test and/or total IgE \<30 kU/L * Bronchodilator response (\>12% or 200 mL improvement in FEV1% predicted following inhalation of 400 mg salbutamol) * Diagnosis-follow-up period: Patients diagnosed at least 6 months prior, under follow-up and treatment, and/or with controlled asthma * Having completed the pulmonary rehabilitation program * Completion of 8 weeks of inspiratory muscle training (IMT) * Patients who have read, understood, and signed the informed consent form Exclusion Criteria: * Having recently had a respiratory tract infection recently (within the last month), * Having a smoking history of more than 10 pack-years or having a history of smoking within 6 months after quitting smoking * Having received oral corticosteroid treatment in the last 4 weeks, * Having a Body Mass Index \>35, * Eosinophilic Granulomatosis Polyangiitis (EGPA) and Allergic Bronchopulmonary Aspergillosis (ABPA), * Vasculitis, * History of malignancy, * Pregnancy, * Previous lung surgery, use of long-term oxygen therapy * Having accompanying restrictive lung diseases (advanced kyphoscoliosis, ankylosing spondylitis) and neuromuscular diseases (myastania gravis, muscular dystrophies, myopathies) that will prevent healthy respiratory function testing and rehabilitation. * Cognitive dysfunction, mental retardation, dementia, or other conditions that make it difficult to follow the protocol, * Unwillingness to continue participating in the study, * Communication difficulties or intellectual deficiencies