According to the Constitution of the World Health Authority: “Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity” (WHO, 1948). Physical and mental wellbeing cannot be completely separated, and indeed go together in most current conceptions of health and, in particular, in successful ageing. Thanks to increasing computing power, reduced size and costs of electronic components such as sensors and displays, it is now both possible and affordable for individual elderly people to be supported by technology that encourages them to exercise to maintain fitness and also allows them to check their own health status regularly. Sensor-based devices and popular interaction technologies developed for computer games make it feasible to design health- and fitness-supporting devices for use by the elderly at home and even when out of doors.
In this chapter, we examine the question of what elderly people – in the age range from 75 years and upwards – actually want and need when it comes to such technologies. How can we design devices and systems that are actually usable and desirable to support extended healthy living for this target population? Unless we can do that, the potential of technology to provide this kind of support for successful ageing will not be fulfilled. And how do we know whether or not we have succeeded in that aim? To address these questions, we report on findings from an ongoing project funded by the Ambient Assisted Living Joint Programme – ELF@Home: elderly sELF-care based on sELF-check of health conditions and sELF-fitness at home (ELF@Home, 2015).