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Marathon Running With Type 1 Diabetes Is Safe With CGM, Small Study Finds
Key Takeaways
- Research to be presented at the EASD Annual Meeting in Milan (Sept. 28–Oct. 2) suggests people with type 1 diabetes can complete a marathon safely with continuous glucose monitoring.
- The observational study followed 20 amateur runners through the 2025 Poznań Marathon — 10 with type 1 diabetes of at least one year's duration and 10 controls without diabetes.
- Pre-race glucose targets for participants with type 1 diabetes were set at 140–200 mg/dL; basal insulin was cut 25% for multiple daily injections and 50% for non-hybrid pumps, while hybrid closed-loop users targeted 150 mg/dL.
- Glucose was measured with a glucometer at five checkpoints (start, 10 km, 19 km, 30 km, finish) and compared against an intermittently scanned CGM and a real-time CGM system.
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DT Editorial Team··via medicalxpress.com