Table 1.
Summary of features in the active control and the YourMove intervention.
| Intervention feature | Active control | YourMove intervention | ||||||
| Digital technology tool | ||||||||
|
|
Fitbit Versa smartwatch | ✓ | ✓ | |||||
|
|
Smartphone app | ✓ | ✓ | |||||
| Financial incentives—receiving up to US $50 for meeting their suggested step goals | ✓ | ✓ | ||||||
| Tailored SMS text messaging support | ||||||||
|
|
Weekly PAa goal and feedback | ✓ | ✓ | |||||
|
|
PA behavior change strategy | ✓ | ✓ | |||||
|
|
Midweek PA goal feedback | ✓ | ✓ | |||||
|
|
Reminder to complete the Reflect tool |
|
✓ | |||||
| Daily support | ||||||||
|
|
Daily step goal | ✓ | ✓ | |||||
|
|
|
N-of-1 adapted? |
|
✓ | ||||
|
|
Daily points contingent on goal being met | ✓ | ✓ | |||||
|
|
|
N-of-1 adapted? |
|
✓ | ||||
|
|
Daily EMAb both for self-monitoring and to measure SCTc constructs that inform N-of-1 adaptation |
|
✓ | |||||
| PA reflection tool |
|
✓ | ||||||
| Adherence support—check-ins to support adherence to measurement | ✓ | ✓ | ||||||
aPA: physical activity.
bEMA: ecological momentary assessment.
cSCT: social cognitive theory.