This prospective cross-sectional study aims to investigate the relationship between dysfunctional breathing (DB), exercise capacity, and balance in patients with arterial hypertension (HT). DB is characterized by abnormal breathing patterns and is associated with symptoms such as dyspnea and inefficient ventilation, regardless of the presence of organic respiratory disease. Hypertension may further exacerbate these symptoms and contribute to impaired exercise performance and postural balance. The study will assess DB using the Nijmegen Questionnaire, along with anthropometric measurements, balance tests, and functional exercise capacity evaluations. Findings may contribute to better understanding of respiratory dysfunctions in hypertensive individuals and their impact on physical performance.