Åhlund K, et al. - Researchers examined frail elderly patients (aged ≥ 75 years) who required inpatient emergency medical care in order to determine the link between physical fitness measurements and 1-year mortality, as well as the link between preserved physical fitness during the first 3 months post-discharge from emergency hospital care and 1-year prognosis in these subjects with a severe comorbidity burden. During hospitalization and at a 3-month follow-up, participants were examined for aerobic capacity (6-minute walk test) and muscle strength (handgrip strength test). Adjusting for age, sex, comorbidity, and frailty, analyses were performed using multivariate Cox regression. According to findings, physical fitness in relation to emergency hospital care was independently linked to 1-year mortality in frail elderly patients with a severe comorbidity burden. Change in physical fitness during the first month post-hospital care was essential for long-term prognosis. In frail elderly patients, the provision of hospital care designed to prevent physical deterioration was significant.