Abstract Background Heart failure (HF) and chronic obstructive pulmonary disease (COPD) frequently coexist in clinical practice, with both conditions negatively affecting individuals’ functional capacity, often measured using the 6-minute walk test (6MWT). Cardiovascular, pulmonary, and metabolic impairments may influence the 6-minute walk distance (6MWD). Objective This study aims to identify and analyze the critical determinants of the 6MWD among subjects with HF-COPD overlap. Methods A cross-sectional study was conducted. Individuals underwent the 6MWT. Respiratory muscle strength was assessed by measuring […]