Table 1.

Theoretical constructs of social cognitive theory and the transtheoretical model targeted by intervention components.

Construct (theory)	Intervention component
Self-regulation (SCTa)	Website goal setting and PAb tracking feature allow participants to log their weekly PA goals and daily activity, including minutes of MVPAc, and to view a graph of how their actual PA compares with their goals. Participants receive a pedometer to track their daily step count
Outcome expectations (SCT)	Web-based daily and weekly exercise tips provide information about the benefits of PA. Text messages about PA benefits
Stages of change and processes of change, for example, consciousness raising, social supports, and reinforcement management (TTMd)	Participants complete monthly web-based questionnaires (stages of change and processes of change) and then receive computer-based, expert system–driven, individually tailored reports for increasing their PA based on their responses
Self-efficacy (SCT and TTM)	Participants complete monthly web-based questionnaires and then receive computer-based, expert system–driven, individually tailored reports
Observational learning (SCT)	Exercise videos in Spanish (led by diverse Latino men) let men observe peers leading exercises and allow practice, which leads to an increase in self efficacy
Behavioral capability (SCT)	Text reminders to access websites, log activity, and set goals; knowledge and skills information in concise tips, detailed tip sheets, text messages, and Facebook posts. Exercise videos in Spanish (led by diverse Latino men) teach skills that help participants learn to be more physically active.
Reciprocal determinism (SCT)	Information provided about the built environment: list on website of places to be active near participants’ home; Facebook messages about community PA events
Outcome expectations and self-efficacy and perceived barriers (SCT)	Share motivational and culturally relevant information about benefits and how to address barriers in concise tips, detailed tip sheets, text messages, and Facebook posts. Exercise videos to promote self-efficacy.
Social support (SCT)	Provide social interaction and support through the online community discussion forum or on Facebook where participants can write messages and interact with each other. Concise tips, detailed tip sheets, text messages, and Facebook encourage exercising with family, spouse, friends, and coworkers

^aSCT: social cognitive theory.

^bPA: physical activity.

^cMVPA: moderate-to-vigorous physical activity.

^dTTM: transtheoretical model.