The feasibility and validity of obtaining pre-morbid activity data in critically ill patients using ‘smart-phone’ technology: a validation study - The PRE PED Study

None listed

While impaired functioning has been shown to substantially influence quality of life for survivors of ICU in numerous studies, these studies are always limited as it has not been possible to objectively quantify patient’s pre-morbid function. This information is crucial as currently we cannot precisely quantify activity levels prior to their critical illness and, therefore, we cannot quantify the change in function for an individual patient. The ability to quantify change in functional ability would be a monumental advancement for researchers in other areas of medicine, but of pivotal importance in our field of critical care as researchers could then quantify the impact of intervention as a change in activity levels for an individual patient. Functional capacity after critical illness is an important outcome measure. Previously to determine functional capacity, researchers have focused on the six-minute walk test and questionnaires to quantify quality of life (QOL) and physical function. Such measures rely upon surrogates being used to subjectively assess pre-morbid functional capacity. There has never been a pre-morbid objective measurement and pedometers have never been used to assess physical activity following critical illness. The primary objective of this study is to establish feasibility of retrospectively obtaining pre-morbid pedometer/accelerometer and GPS data from the smart-phones of survivors of critical illness. The secondary objectives of this study are to validate accelerometer data extracted from a patient’s smart phone when they are recovering from critical illness. This will be achieved by comparison with pedometer data, which we will consider as the ‘gold standard’. In addition we will compare these data with data from a mobile phone app (MOVES) data, six-minute walk test, grip strength and functional assessment scores. These measurements of activity will be compared against measurements of function, i.e. the Functional independence measure (FIM), independent activities of daily living (iADLs), Activities of Daily Living (ADLs), extended Glasgow outcome scale (GOSE), Rivermead mobility index, (RMI) and EuroQoL05D-5L-35. Comparisons will be made at 3 and 6 months The tertiary objective of the study is to explore whether we can use GPS data extracted from the patient’s phone to construct activity or life space polygons to describe the recovery from critical illness at 3 and 6 months.

No related papers found yet.