Randomisation and blinding
BLIND
After the informed consent procedure, participants were sent an email with a link to the trial website. On completion of the baseline questionnaire, the software program allocated them to internet-based VR (stand-alone VR), internet-based VR with support (blended VR), or usual care. The randomisation process was fully automated and concealed from the research team. Due to the nature of the trial interventions, it was not possible to blind participants, physiotherapists, and research assistants.