Close

Presentation

Incorporating Visualizations of Biometric Data from Digital Tools in a Self-Monitoring Program for Individuals with Type 2 Diabetes: Acceptability and Usability of Closing the Loop (CTL)
DescriptionDigital health tools like smartwatches and mobile applications offer promise for supporting lifestyle behavior changes in individuals living with type 2 diabetes (T2D). Many individuals face barriers in adopting digital health tools, as well as interpreting and applying data from these devices. We developed Closing the Loop (CTL), a self-monitoring program that integrates multiple streams of data from consumer-grade devices and apps into a weekly report, supplemented by a comprehensive technical orientation and data-supported health coaching. Twelve individuals living with T2D, using a continuous glucose monitor (CGM), and receiving care at a Veterans Administration Medical Center participated in CTL. Participants used a smartwatch, CGM, a diet-logging mobile application, and completed daily surveys. They reviewed personalized reports with a health coach to support behavioral changes. CTL demonstrated high feasibility (mean=4.4/5), acceptability (mean=4.4/5), and usability (SUS=87.5), with 100% participant retention and data completeness ranging from 77–100%. Qualitative feedback highlighted the effectiveness of technical support and the role of shared decision-making in fostering engagement. Findings suggest CTL is a promising, scalable approach to enhancing T2D self-management through integrated digital health tools and personalized coaching. Future iterations will refine report usability and reduce tracking burden to further support long-term behavior change.