Patients admitted for rehabilitation will be included for two periods of one-week monitorization of physical activity. The investigators will include all patients with moderate to severe brain injury.~This is an observational cross-sectional study including patients 18 years or above. Patients with conditions such as unstable fractures that restricts mobilisation are excluded. Physical activity is measured continuously during rehabilitation at two separate seven-day periods using a body-worn activity tracker. The first period will be initiated in the early phase of rehabilitation (3 days after admission) and the second at the late phase (10 days before discharge).~Baseline variables considered predictors, confounders or modifiers for physical activity will be collected along with registration of variables during the measurement periods and functional outcome variables at discharge.
The purpose of this observational study is to quantify physical activity patterns in patients with severe acquired brain injury admitted for in-hospital rehabilitation.