Validation of Two Acitivity Monitors in Three Inpatient Populations.

The study will investigate the association between activity measured by Sens Motion and ActivPAL acitivity monitors, respectively, and direct observation in order to investigate to which degree the two types of activity monitors are able to classify activity (i.e. lying, sitting, standing, walking, up/down transitions and steps).

Thirty-six patients from three different patient populations will be included: 12 acute high-risk abdominal surgery patients (+18 years), 12 hip fracture patients (+65) and 12 older medical patients (+65). Inclusion criteria to be fullfilled: 1) admission from own home. Patients will be excluded for the following reasons: inability to walk independently with or without a walking aid; inability to transfer from lying to sitting, inability to transfer from sitting to standing, inability to cooperate, and inability to speak or understand Danish.

Each patient will be asked to wear two sets of activity monitors (on the right thigh and on the chest) while performing a predefined, supervised protocol consisting of a range of positions and activities including lying down, sitting, standing and walking.

Inclusion criteria

• older medical patient (+65)
• older hip fracture patient (+65)
• acute high-risk abdominal surgery patient (+18)
• admitted from own home

Exclusion criteria

• inability to walk independently with or without a walking aid
• inability to transfer from lying to sitting and sitting to standing
• inability to cooperate
• inability to understand or speak Danish.