BACKGROUND AND AIMS: An acute illness may place older frail people at increased risk of losing independence in functional abilities. Physical exercise may reduce the risk by improving muscle strength and balance. However, the effects of physical training on functional abilities have not been studied among frail, very old people recovering from an acute illness. The aim of this study was to determine the effects of a group-based exercise program on their ability to carry out self-care (ADL) and instrumental activities (IADL) relevant to daily life after discharge from hospital. METHODS: This randomized controlled trial examined 68 community-dwelling women aged 75 years or older (mean age 83.0, SD 3.9) who were hospitalized due to an acute illness, and were mobility-impaired at admission. Participants were recruited from the geriatric ward of a primary-care health-center hospital, and were randomized into group-based strength training (n = 34) and control (n = 34) groups. The 10-week group-based intervention included strength training and functional exercises. The control group received instructions for a home exercise training program, including functional exercises but no further encouragement to exercise. The level of independence in ADL and IADL was evaluated, using a 13-item scale with stepwise grading from fully independent to fully dependent. Measurements took place immediately before and after the intervention, and three and nine months later. RESULTS: The intervention did not have any significant main effect (p = 0.407), nor was there any significant interaction between follow-up time and intervention (p = 0.854). CONCLUSIONS: The multicomponent outpatient strength training program did not improve autonomy in expert-evaluated ADL/IADL functions.

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