Development, implementation and evaluation of a smartphone application aimed to reduce sedentary time and increase physical activity among Indian sedentary office workers – findings from SMART-STEP trial

Table 3 Probe questions used to assess the acceptability of the SMART-STEP smartphone application

Questions asked during the interview^a	Signaling questions
Can the application be used in the current form?	Easy navigation, convenient in use
Do you have any problem with the phones while using?	Battery, crash, data/server problems
In what way can we improve the application that can motivate you?	Games, any sensors integrated
What are the barriers you faced with the intervention other than phones itself?^b	Individual (task, laziness), interpersonal (colleague support) and organizational (task, load, policies)

^aThe questions were uniformly asked to all participants in the SMART group, who were the only group invited for this qualitative evaluation
^bthe last question explored contextual and behavioral barriers beyond technical issues to understand broader factors affecting application integration into users’ routines, which are critical for assessing real-world acceptability

ISSN: 1471-2458