Table 1 Progression criteria for the interventions and planned outcomes

Usability

Patients can successfully use the activity module.

System adherence.

Technical support required.

Activity coach adherence\( \ge \) 60%

(median of population)

After the first week of use, < 20% of study participants need to contact technical support

The activity module features work as intended.

User feedback from interviews.

The result from the interviews was that the information material in the Activity coach was deemed relevant.

The goal-setting function did not cause negative stress in > 20% of patients.

Feasibility of outcomes

Accelerometer is used enough to constitute data-source for primary outcome.

Data stored in the accelerometers.

> 80% of study participants use the accelerometer for ≥ 4 days/week, with a minimum wear time of 540 min/day.

Goal-attainment outcome feasible.

At baseline, each study participant will together with the researcher define goals to achieve.

It was feasible with a reasonable amount of effort to define two goals per patient.

Goals were connected to the implemented mechanisms of change.