Using a Personalized Decision Support Tool to Help People With Type 1 Diabetes Manage Exercise

This study evaluates a digital decision-support tool designed to help individuals with type 1 diabetes prepare for exercise. This netIOB \& Exercise Tool (NEXT) uses glucose data and insulin delivery history to recommend individualized strategies such as carbohydrate intake, insulin adjustments, or delays in exercise start time. Participants will complete three structured aerobic or mixed-exercise sessions using different guidance approaches: (A) published consensus-based standard-of-care guidelines (B) usual personal care routines (C) the NEXT tool The study compares glucose outcomes, safety, and carbohydrate use across these conditions to inform better exercise preparation and support tools for people with diabetes.