User acceptance of self-monitoring technology to prevent cardio-metabolic diseases: the Wize Mirror

Cardiovascular diseases are the leading cause of mortality worldwide and impose a tremendous burden on socio-economic costs. At present, prevention strategies based on personalized lifestyle interventions are considered the best way to contain the epidemics of these diseases. In this view, availability of innovative technological systems able to assist people in self-monitoring and self-coaching is expected to play a crucial role. Aiming to this, we have developed a multi-sensing device, called Wize Mirror which has the appearance of a conventional mirror. The Wize Mirror allows the users to self-monitor their cardio-metabolic risk also providing personalized lifestyle guidance. The mirror has undergone a validation study in three centers to assess the coherence of mirror measurements with standard clinical tests and to evaluate its acceptability by potential users. In this paper, following a summary of the major functionalities of the mirror, we report on the analysis of data about system acceptability assessed during the validation study. Acceptability was measured by means of the System Usability Scale, which resulted in "good" usability of the Wize Mirror.