Table 1 Examples of the SMS messages sent to participants during the trial
| Â | Total number | Example 1: 24th Oct; day 1, week 1 | Example 2: day 1, week 3 | Example 3: day 4, week 3 | Example 4: day 4, week 5 |
|---|---|---|---|---|---|
Control group | 9 | [First name], thank you for taking part in this important research! Except when doing sport, please keep the phone in your trouser pocket from now on. | no message | In the bag? That’s a snag! Remember to keep your phone in your pocket! | We’re half-way through the study. Many thanks! |
Individual group | 16 | Your bActive app is now fully activated. Please open it and take some time to explore and use it. | Walking is one of the best activities for your health. How much are you doing? Check the app! | To improve your fitness, ‘brisk is best’. But it is a good idea to use the ‘talk test’: can you talk while you walk? | |
Social group | 16 | Walking is one of the best activities for your health. Are you doing more than others, or less? Check the app! |