The objectives are;~To determine levels of physical activity among a broad representation of patients hospitalized following hip fracture surgery, and secondly to explore the association with 30-day readmission, and mortality.~To understand and define which functions and strategies are needed for patients hospitalized following hip fracture surgery to be independent in the basic mobility activities: getting in/out of bed, sit-to-stand from a chair and walking.
Present study aim to gain an understanding of functions needed and strategies used for patients following hip fracture surgery to be independent in basic mobility activities during acute hospitalization, and establish knowledge of how much (or little) patients get out of bed.~Within the patients included in this cohort study (1), a subgroup will also be included in a satellite study (2), with a separate objective. Definitions are presented in the detailed description below (objectives 1-2).