Heart failure (HF) is an increasingly prevalent clinical syndrome and a major cause of cardiovascular mortality and morbidity [1,2]. Functional disability and loss of independence are hallmark features of HF, with a substantial proportion of patients having moderate to severe difficulty with basic instrumental activities of daily living [3,4]. If left untreated, such patients are very likely to show no change or experience progression of their functional disability over time [3]. Notably, persistently severe or worsening disability contributes to worsen prognosis [3].
