The Emerging Role of Continuous Glucose Monitors in Endurance Runners and Prediabetes Prevention
Keywords:
Continuous Glucose Monitoring (CGM), Endurance Athletes, Endurance Runners, Pre-diabetes, Diabetes, Carbohydrate Loading, Glycemic Control, Glycemic VariabilityAbstract
Continuous Glucose Monitors (CGMs) are wearable forms of technology that have been traditionally used in diabetes management in order to improve glycemic control and reduce glycemic variability. More recently, CGMs have expanded into the field of endurance sports, particularly among long-distance runners who rely heavily on carbohydrate intake to support training and performance demands. This systematic review explores the long-term metabolic effects of frequent high carbohydrate intake in non-diabetic athletes, particularly since carbohydrate loading is essential for optimizing endurance performance. This study analyzes existing literature through a structured review of current evidence on continuous glucose monitors in diabetic and non-diabetic populations. Particular emphasis was placed on the potential of CGMs to enhance metabolic awareness and optimize nutritional strategies in endurance runners.
References
[1]. Vitale K, Getzin A. Nutrition and Supplement Update for the Endurance Athlete: Review and Recommendations. Nutrients. 2019;11(6):1289. Published 2019 Jun 7. doi:10.3390/nu11061289
[2]. Murray B, Rosenbloom C. Fundamentals of glycogen metabolism for coaches and athletes. Nutr Rev. 2018;76(4):243-259. doi :10.1093/nutrit/nuy001
[3]. Jiménez-Alfageme, R., Garrone, F. P., Rodriguez-Sanchez, N., Romero-García, D., Sospedra, I., Giménez-Monzó, D., Ayala-Guzmán, C. I., & Martínez-Sanz, J. M. (2025). Nutritional Intake and Timing of Marathon Runners: Influence of Athlete's Characteristics and Fueling Practices on Finishing Time. Sports medicine - open, 11(1), 26. https://doi.org/10.1186/s40798-024-00801-w
[4]. Didyuk O, Econom N, Guardia A, Livingston K, Klueh U. Continuous Glucose Monitoring Devices: Past, Present, and Future Focus on the History and Evolution of Technological Innovation. J Diabetes Sci Technol. 2021;15(3) :676-683. doi:10.1177/1932296819899394
[5]. Friedman JG, Cardona Matos Z,Szmuilowicz ED, Aleppo G. Use of Continuous Glucose Monitors to Manage Type 1 Diabetes Mellitus: Progress, Challenges, and Recommendations. Pharmgenomics Pers Med. 2023;16:263-276. Published 2023 Mar 31. Doi :10.2147/PGPM.S374663
[6]. DePasquale, H., DeLucenay, A., & Ahmed-Sarwar, N. (2025). Correlation of HbA1c and Continuous Glucose Monitor Time in Range. The Journal of pharmacy technology : jPT : official publication of the Association of Pharmacy Technicians, 87551225251348832. Advance online publication. https://doi.org/10.1177/87551225251348832
[7]. Ishihara K, Uchiyama N, Kizaki S, Mori E, Nonaka T, Oneda H. Application of Continuous Glucose Monitoring for Assessment of Individual Carbohydrate Requirement during Ultramarathon Race. Nutrients. 2020;12(4) :1121. Published 2020 Apr 17. doi:10.3390/nu12041121
[8]. Manov AE, Chauhan S, Dhillon G, et al. The Effectiveness of Continuous Glucose Monitoring Devices in Managing Uncontrolled Diabetes Mellitus: A Retrospective Study. Cureus. 2023;15(7):e42545. Published 2023 Jul 27. doi: 10.7759/cureus. 42545
[9]. Hurwitz BE, Schneiderman N, Marks JB, et al. Adaptation of ß-Cell and Endothelial Function to Carbohydrate Loading: Influence of Insulin Resistance. Diabetes. 2015;64(7):2550- 2559. doi:10.2337/db15-0106
[10]. Gordon B, Kohn LA, Levine SA, Matton M, Scriver WDM, Whiting WB. Sugar content of the blood in runners following a marathon race: with special reference to the prevention of hypoglycemia: further observations. JAMA. 1925;85(7):508-509. doi:10.1001/jama.1925.02670070028009.
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