Table 1.
Text message type | Strategies targeted in this type of message | Example | Minimum dose over 6 months | Frequency | ||||
Weight | PA | Diet | Weight | PA | Diet | |||
Self-monitoring of weight | Prompt self-monitoring | If u havent weighed yourself in the last 2 weeks Karen then do it today! Amy | 12 | N/A | N/A | Biweekly | N/A | N/A |
Goal check | Prompt self-assessment of goal attainment | How r u going Karen? Reach ur goal 2 walk 3x30mins? Text me back yes or no. Amy | 3 | 0 | 0 | Once in weeks 6, 18, 24 | Maximum 1 per week (participant determined) | Maximum 1 per week (participant determined) |
Goal check reply | Provide feedback | Yes example: Fantastic Karen! Regular exercise will help u control ur weight. Remember 2 buy a magazine & reward yourself 4 ur excellent effort. Amy No example: Don’t worry Karen. Think about what got in the way & plan 4 it this week. Work around ur barriers 2 achieve ur goals. Amy |
Triggered by participant’s reply | Triggered by participant’s reply | ||||
Prompt self-reward | ||||||||
Prompt relapse prevention | ||||||||
Prompt “real-time” planned behavior | ||||||||
Prompt self-monitoring | ||||||||
Prompt preparatory and planning behavior | ||||||||
Prompt barrier identification and solutions | ||||||||
Goal reset | Prompt SMART goal setting | Reflect on ur exercise goals Karen. Eventually u want 2 aim for 7x30mins exercise/week & more is better. Text me back with a new goal! Amy | 3 | 3 | 3 | Once in weeks 6, 18, 24 | Once in weeks 6, 18, 24 | Once in weeks 6, 18, 24 |
Cues for planned behavior | Prompt “real-time” planned behavior | Want 2 feel more energised Karen? Make time 2 walk 3x30mins this week & feel the difference. Amy | N/A | 0 | 0 | N/A | Maximum 2 per week (participant determined) | Maximum 2 per week (participant determined) |
Prompt self-monitoring | ||||||||
Prompt preparatory and planning behavior | ||||||||
Prompt barrier identification and solutions |