Dose and fidelity of the intervention
Data representing the dose and content of the intervention were collected by the coaches using a predefined tool, containing the date of contact with the participant, duration of preparation, counseling and debriefing and the content (MoVo as well as BCTs) of each counseling session. Additionally, the dates of all text messages sent were documented and for each counseling session there was the opportunity for free text comments. The coaches entered these data regularly after every counseling session and were monitored by the study team.