Table 3 Recommendations from participants for added features to improve the selfBACK app

Option to self-regulate time points for notifications e.g. prompt for physical activity exactly when the participant thought it was needed

Option to see one’s weekly progress in pain symptoms from the answers to the tailoring session questionnaire

Option to “star mark” favorite exercises

Option to watch exercises performed from different angles to enhance understanding of correct performance

Guidance on tweaking exercises rather than fully replacing exercises

Option to rule out all exercises that required for example weight on knees or wrists