Expectations for Robotic Support in Acute Cardiac Rehabilitation of Older Patients　― Towards a New Era ―

with improved symptoms of decompensated HF began hospital-based CR program involving a HALassisted transition from sitting to standing and squatting exercises, starting an average of 5.5 days after hospitalization.Following a median of 5 CR sessions using HAL, the Short Physical Performance Battery (SPPB) score and quadriceps isometric strength (QIS) significantly improved.These improvements were significant in patients with higher CONUT scores at the start of CR, indicating poorer nutritional status (a population in which the effects of M ultiple factors, such as malnutrition, sarcopenia, and frailty, significantly affect prognosis in older patients with heart failure (HF). 1 Therefore, effective approaches to reducing sarcopenia and improving outcomes in patients with frailty participating in cardiac rehabilitation (CR) programs have great clinical importance.However, in real-world clinical settings for acute HF, CR has not yet been widely implemented, and intervention methods have not yet been established.In this issue of the Journal, Yamamoto et al. retrospectively analyzed the efficacy of a new acute-phase rehabilitation program using the lumbar-type hybrid assistive limb (HAL) in older patients with HF and frailty. 2