Co-design and formative usability evaluation of a multifunctional mhealth app for chronic vestibular syndrome management

Abstract

Objectives

Chronic vestibular syndrome (CVS) refers to chronic dizziness and imbalance symptoms persisting for ≥3 months. The treatment and management of patients with CVS remain a global challenge. The effectiveness of mobile application in assisting people with other chronic conditions has been proved. This study aims to co-design and develop an app prototype for patients with CVS innovatively, then explore users’ formative evaluation for this app prototype.

Methods

This research adopted the qualitative research method. Two rounds of focus groups were conducted to determine the modules and functions of the app. Then the app prototype was developed accordingly. Subsequently, patients or their main caregiver were interviewed to explore their formative evaluation and optimization requirements, which in accordance with the ISO 9241–11 usability framework.

Results

During the focus groups, eight modules were identified for this app, including 20 specific functions in total. On the basis of focus group results, an app prototype was developed over a period of six months. Interview results indicated that participants expressed positive evaluations regarding the usefulness of this app. However, there were several impediments in terms of usability. In the end, seven user requirements for app optimization were obtained.

Conclusions

This study designed and developed an app based on expert focus groups. Target users provided relatively positive evaluations on this prototype. This study provided preliminary evidence on the acceptability and usability of mobile apps for managing patients with CVS.

Public Interest Summary

Chronic dizziness and imbalance can significantly affect daily life, making it hard for people with chronic vestibular syndrome (CVS) to manage their condition. In our study, we created a user-friendly mobile health app specifically designed for CVS patients. The app offers features to support symptom tracking, rehabilitation exercises, and educational resources. By involving both medical experts and patients in the co-design process, we ensured the app meets the real needs of users. Preliminary feedback from patients suggests that the app is practical and could help improve their quality of life. This innovation has the potential to make managing CVS more accessible and effective, reducing the challenges these patients face every day.