JMIR Publications

ABSTRACT

Consumer-based physical activity (PA) trackers are increasingly being used for research scientific purposes. One of the most widely used commercial PA trackers for research is Fitbit. Some interventional studies aim to improve participants’ PA levels and health outcomes through daily self-monitoring of PA measures, goal setting, and other Fitbit-enabled features. There are several technical and operational challenges associated with its use. We discuss these challenges and describe a number of empirically-tested strategies effectively used in four of our Fitbit intervention-based studies. We assembled useful insights, strategies and solutions to addressing challenges within our interventions with participants from a broad range of demographic characteristics, racial/ethnic backgrounds, and literacy levels. We categorized the challenges and solutions into four main categories: intervention preparation, intervention delivery, data collection and analysis, and study close-out. Difficulties with the use of Fitbit in research are encountered throughout the entire research process. Researchers should be prepared to address challenges and issues in a timely fashion to ensure that the Fitbit effectively assists participants and researchers in achieving research goals.