Table 2 Translation and operationalization of BCTs targeting behaviour determinants into BIT elements
Determinant | BCT | Operationalization | BIT element | Workflow |
|---|---|---|---|---|
Perceived behavioural control; Autonomy; Planning; knowledge/awareness | Action planning and goal setting (behaviour) | Inform the participants about the phase of the intervention and goals | WhatsApp group message | Every 2 weeks (Sunday) |
Perceived behavioural control; Intentions; Competence; Knowledge/awareness | Provide instructions and demonstrations on how to perform the behaviour | Give instructions and demonstrations about how to perform the training session | Videos with exercise proposals | Every 2 weeks (Sunday) |
Perceived behavioural control; Autonomy; Competence; Knowledge/awareness | Prompt self-monitoring of behaviour | Ask the participants to report the intervention compliance | WhatsApp group message | Every 2 weeks (Sunday) |
Perceived behavioural control; Relatedness; Competence; Knoledge/awareness | Provide feedback on performance | Inform the participants about their performance in the main exercises (i.e. body mass-based squat, squat jump and countermovement jump) | WhatsApp group message or video | Every 2 weeks (Friday) |
Perceived behavioural control; Attitude (beliefs); Knowledge/awareness | Information about health consequences | Present press releases to emphasize the importance of calcium and vitamin D for bone health | WhatsApp group message | At the beginning of each phase (Sunday) |