Acceptability
The quantitative scores indicated an overall acceptability rating from the exercise snacking intervention by completers of the study of 4.6 out of 5. The highest rated aspects of the TFA by study participants were self-efficacy (4.3) and affective response (4.1), followed by ethicality (3.9), coherence (3.8) and effectiveness (3.7). Burden (2.1) and opportunity cost (1.8) were scored low (scores closer to 1 represent a favourable appraisal), demonstrating strong all-round acceptability of the intervention. Similarly, the qualitative interviews indicated a generally positive view of the exercise snacking intervention and insight into some improvements that may enhance the acceptability further (Table 
Qualitative analysis organised using the theoretical framework of acceptability domains, with implications for future implementation




Screen participants based on existing activity levels or exercise behaviour.Tailor the programme to include progression to avoid tedium.



Suggest that participants find times when they feel most rested or energised to do the snacksReiterate that they do not need to wait to the evening.






























Where noted in quotes, I = Interviewer; R = respondent