Exploring the usability of a smartphone application to monitor fatigue and activity for people with acquired brain injury

Background: Fatigue after acquired brain injury (ABI) leads to detrimental changes in ABI survivors’ daily activities and participation. There is a need capture individual’s experience of fatigue as it happens, better support self-management fatigue. Study aims: To investigate the usability real-time tracker activity (using ecological momentary assessment delivered by smartphone application) feasibility capturing environmental factors using phone sensors. Methods: Participants wore an monitor completed up eight surveys day on app, for 6 days, system scale (SUS) were interviewed their views app. Interview transcripts analysed qualitative content analysis. Agreement between data from phone’s sensors was Kappa statistics. Results: Seven participants 11 58 surveys. Mean score SUS indicated good perceived Phone did not reliably physical or background noise. found app easy use self-monitoring help understanding A fatigue-tracking may be acceptable survivors has potential aid