Table 2.

The three different content types of the PAUL reminders.

Message type	Example
Coping message	Will you go for the extra mile today? You were doing good [name]! Don't quit after a setback. Today is a new day. Will you go for a run today [name]? It can be disappointing when you do not reach your goal. But this happens to the best of us, so keep trying!
Feedback message	How would you feel about going on a walk [name]? Today, your goal is to walk [n] minutes! Are you going to get started to reach your goal today? Still [n] minutes to go this week, good luck!
Affective message	Hey [name]! Are you going for a walk today? You could be proud of yourself when you go! Will you make the effort today [name]? The most difficult part is to start running. Once you've started, it's fun!