Understanding the perceptions of sedentary college students' engagement in physical activity: application of the theory of planned behavior.

Objective: To understand salient beliefs related to physical activity (PA) in sedentary college students.

Participants: Thirty-seven students from a large research university participating in a larger research project were subsequently invited to participate in small focus groups.

Methods: Using the Theory of Planned Behavior as a framework, semi-structured focus groups were conducted to understand the perceptions of using mobile technology as a tool to increase PA.