Graduation Year


Document Type




Degree Granting Department

Child and Family Studies

Major Professor

Raymond Miltenberger


Fitbit, Fitness, goal-setting, Obesity, step-count


Obesity is a problem of vast social concern in the United States. One factor that has been linked to reduction in body fat and the health problems associated with obesity is increasing physical activity. Although in-person behavioral interventions have been shown effective at increasing physical activity, attention is now being placed on disseminating these interventions through the use of technology. Several internet-based interventions have been developed and are readily available. The purpose of this study was to evaluate "Fitbit," a web-based behavioral intervention for increasing physical activity and losing weight. Additionally, this study examined if the addition of contact from a behavioral coach through videoconference and email enhanced the effectiveness of this program. Through a multiple-baseline design across seven participants this research project evaluated the effectiveness of the "Fitbit" program with and without a behavioral coach. Step counts were recorded by a Fitbit sensor as a measure of physical activity. The Fitbit program alone increased physical activity for some of the participants, and the addition of the behavioral coach resulted in further increases in mean step counts.