Type 1 Diabetes Did Not Prevent Marathon Success
Runners with type 1 diabetes completed marathons with finish times comparable to participants without the condition.
Updated on Sept. 22, 2026 in Diabetes
Live Poll
Do you believe people with chronic conditions like diabetes can safely participate in endurance exercise?
A small study found that people with type 1 diabetes finished a 26.2-mile marathon in an average of 228 minutes, compared to 248 minutes for a control group without diabetes. These findings highlight the potential for high-intensity physical activity in those managing the condition.
Why it matters
This research demonstrates that rigorous physical endurance goals are achievable with careful blood sugar management, potentially expanding the scope of exercise advice for people living with type 1 diabetes.
In a study of 20 runners, participants with type 1 diabetes maintained pre-race blood sugar levels between 140 and 200 mg/dL with monitored adjustments. Researchers observed that the diabetic group finished the 26.2-mile course with results statistically similar to their non-diabetic peers.
The players
European Association for the Study of Diabetes
An international organization dedicated to diabetes research, education, and the clinical application of findings.
The details
Participants with type 1 diabetes utilized a structured protocol involving blood sugar checks at three specific checkpoints throughout the 26.2-mile race. Researchers administered insulin or carbohydrates as needed to stabilize glucose levels during the exertion. While one participant experienced two bouts of hypoglycemia, the controlled approach allowed the cohort to sustain performance throughout the marathon.
Timeline
Sept. 22, 2026: The research findings were published.
Sept. 28 to Oct. 2, 2026: The study results will be presented at the EASD meeting in Milan.
Health Landscape
This research follows a broader trend within the European Association for the Study of Diabetes to investigate the safety and efficacy of high-intensity athletic performance in the diabetic population. It marks a shift from historical caution toward more proactive, evidence-based training protocols.
If you are interested in pursuing high-intensity exercise, the findings underscore the importance of frequent blood glucose monitoring during physical activity. Discuss your specific blood sugar targets and insulin adjustment strategies with your endocrinologist before starting a new training regimen.
The takeaway
Maintaining target blood sugar levels during exercise is possible, even during intense athletic endurance events. Always track your glucose levels carefully and coordinate with your physician to create a safe management plan tailored to your specific activity level.
Further reading
For more on managing glucose during exercise, visit Diabetes.
Live Poll
Do you believe people with chronic conditions like diabetes can safely participate in endurance exercise?
