Table 3.

Schedule of enrollment, interventions, and measures for the SMART 2.0 Study

	Study period
	Enrollment	Allocation	Post-allocation
Time point		0	6	12	18	24
Enrollment
Eligibility screen	•
Informed consent	•
Allocation		•
Interventions
SMART 2.0 with technology alone (IG1)		→	→	→	→	→
SMART 2.0 with technology and health coaching (IG2)		→	→	→	→	→
Control group		→	→	→	→	→
Measures
Anthropometrics and physiological outcomes: weight, height, BMI, waist and hip circumference, blood pressure, and heart rate		•	•	•	•	•
Body composition: DXA		•	•	•	•	•
Bone density: DXA		•		•		•
Cardiovascular fitness, flexibility, and grip strength		•	•	•	•	•
Physical activity: actigraph		•		•		•
Physical activity and sleep: Fitbit activity tracker		→	→	→	→	→
Questionnaires: GPAQ, PANES, SIT-Q-7d, PASSS, DHQ-III, Social Support for Diet, strategies for weight management, CES-D, STAI, Rosenberg Self-Esteem Scale, and Quality of Wellbeing Scale		•	•	•	•	•
Engagement		→	→	→	→	→
Usability and acceptability						•

BMI body mass index (kg/m²), DXA dual-energy X-ray absorptiometry, GPAQ Global Physical Activity Questionnaire, PANES Physical Activity Neighborhood Environment Scale, SIT-Q-7d 7-day Sedentary Behavior Questionnaire, PASSS Physical Activity and Social Support Scale, DHQ-III Diet History Questionnaire III, CES-D Center for Epidemiological Studies Depression Scale, STAI State-Trait Anxiety Inventory