Informing the development of a mobile application for the physical activity guidelines in multiple sclerosis: a qualitative, pluralistic approach

Purpose
The uptake of Physical Activity Guidelines (PAGs) for adults with multiple sclerosis (MS) may be facilitated through mHealth solutions such as a mobile app. To date, there is limited information regarding preferred features of an app for people with MS. We explored desired features for an app that supports physical activity behaviour among persons with MS.

Materials and Methods
Using a pluralistic analytical approach, we conducted a secondary qualitative analysis on a portion of data collected from an earlier study to explore (i) what persons with MS wanted in an app based on the PAGs and (ii) how the PAG-based app should facilitate behaviour change. The data were subjected to deductive, content analysis to identify populous mentions of desired PAG-based app elements. We then used inductive, semantic reflexive thematic analysis to further explore the opinions and evaluations of participants.

Results
Participants (n = 16) perceived features such as activity tracking, incentives for completing milestones, and customization as both triggers for doing PA and supporting engagement with the app. Participants desired a personalized PA prescription based on mobility and fitness level, expert feedback based on data entered in the app, and an exercise library with a range of evidence-based content. Participants insisted the app be backed by a solid scientific foundation and that accessibility of personal data be controlled by the user.

Conclusions
This study identifies several design considerations for an app based on the PAGs. The results suggest a simple, trustworthy, and evidence-based app that focuses on helping persons with MS reach the PAGs.