RESUMO
Balance dysfunction in older patients compromises independence and increases the risk of falls and disability. Arterial stiffness, an important parameter of atherosclerosis, can affect peripheral organs, including the brain, causing balance disorders. The cardio-ankle vascular index (CAVI), measured independently of blood pressure, has attracted attention as an indicator of arterial stiffness. However, the association between balance dysfunction and CAVI in patients with heart failure remains unclear. We investigated the association between the Short Physical Performance Battery (SPPB) score and CAVI in older patients with heart failure.We investigated heart failure patients from our cardiac rehabilitation database between 2017 and 2022. Physical function, body composition, and CAVI were measured the day before discharge. Body composition was assessed using bioelectrical impedance analysis. Physical function was determined by assessing handgrip strength, 6-minute walk distance, and SPPB. Sarcopenia was classified according to the Asian Working Group for Sarcopenia 2019 guidelines, defining sarcopenia as an SPPB total score ≤ 9.Among the 205 consecutive hospitalized patients aged ≥ 65 years (mean, 77.0 years; male, 140; female, 65), 45.0% had sarcopenia. CAVI was significantly higher in patients with sarcopenia than in those without (10.4 [9.5, 11.4] versus 9.8 [8.9, 10.8], respectively). Age, 6-minute walk distance, SPPB tandem time, 4-m walk time, 5 repetition sit-to-stand time, and SPPB score were significantly associated with CAVI, with tandem being an independent CAVI determinant (ß = -0.142, P = 0.047).These results suggest an association between arterial stiffness and SPPB score in older patients with heart failure.