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Purpose: To assess glycemic control and safety of children and adolescents with type 1 diabetes participating in a 2-day football tournament. Methods: In total, 189 children with type 1 diabetes from 11 diabetes care centers, in Poland, participated in a football tournament in 3 age categories: 7–9 (21.2%), 10–13 (42.9%), and 14–17 (36%) years. Participants were qualified and organized in 23 football teams, played 4 to 6 matches of 30 minutes, and were supervised by a medical team. Data on insulin dose and glycemia were downloaded from personal pumps, glucose meters, continuous glucose monitoring, and flash glucose monitoring systems. Results: The median level of blood glucose before the matches was 6.78 (4.89–9.39) mmol/L, and after the matches, it was 7.39 (5.5–9.87) mmol/L (P = .001). There were no episodes of severe hypoglycemia or ketoacidosis. The number of episodes of low glucose value (blood glucose ≤3.9 mmol/L) was higher during the tournament versus 30 days before: 1.2 (0–1.5) versus 0.7 (0.3–1.1) event/person/day, P < .001. Lactate levels increased during the matches (2.2 [1.6–4.0] mmol/L to 4.4 [2.6–8.5] mmol/L after the matches, P < .001). Conclusions: Large football tournaments can be organized safely for children with type 1 diabetes. For the majority of children, moderate mixed aerobic–anaerobic effort did not adversely affect glycemic results and metabolic safety.
Gawrecki, Araszkiewicz, Biegański, Skowrońska, Adamska, Naskręt, and Zozulińska-Ziółkiewicz are with the Poznan University of Medical Sciences, Poznan, Poland. Szadkowska and Michalak are with the Department of Pediatrics, Oncology, Hematology and Diabetology, Medical University of Lodz, Lodz, Poland. Konarski and Domaszewska are with the Poznan University of Physical Education, Poznan, Poland. Jarosz-Chobot is with the Department of Children’s Diabetology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Slaskie, Poland. Szypowska is with the Department of Pediatrics, Medical University of Warsaw, Warszawa, Poland. Klupa is with the Department of Metabolic Diseases, Jagiellonian University Medical College, Krakow, Poland. Gawrecki is also with the Department of Internal Medicine and Diabetology, Poznan University of Medical Sciences, Poznan, Poland.