This research project is structured in two phases: an initial observational phase and a subsequent randomized controlled trial (RCT) phase. The goal of the observational phase is to compare hospital admission and Hospital at Home (HaH). The objective of the RCT is to assess the effectiveness of a multicomponent intervention following acute hospitalization in older adults. The main questions it aims to answer are:
* What are the differences between hospital admission and HaH in sedentary and physical activity levels?
* What are the effects of a multicomponent intervention following acute hospitalization in older adults?
Researchers will compare a post-discharge multicomponent intervention to usual care to see the effects on physical and cognitive function.
Participants will receive a home-based cognitive and physical exercise intervention or usual care.