Primary Objective: To test the effect of two text messaging strategies, responsive texts and standard scheduled texts, on sedentary behavior in a racially and geographically diverse sample of adults.
Secondary Objective: To assess participant engagement with the program and with the educational content delivered via text messaging.
Exploratory Objective: To determine whether two text messaging strategies, responsive texts and standard scheduled texts, increases physical activity in a racially and geographically diverse sample of adults.
Exploratory Objective: To determine whether two text messaging strategies, responsive texts and standard scheduled texts are associated with changes in corresponding patient attitudes as assessed by surveys of exploring sedentary behavior, readiness for exercise change, and physical functioning.