Characterization of Individualized Glycemic Excursions during a Standardized Bout of Hypoglycemia-Inducing Exercise and Subsequent Hypoglycemia Treatment—A Pilot Study

The glycemic response to ingested glucose for the treatment of hypoglycemia following exercise in type 1 diabetes patients has never been studied. Therefore, we aimed to characterize glucose dynamics during a standardized bout of hypoglycemia-inducing exercise and the subsequent hypoglycemia treatme...

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Autores principales: Jan Brož, Matthew D. Campbell, Jana Urbanová, Marisa A. Nunes, Ludmila Brunerová, Dario Rahelić, Denisa Janíčková Žďárská, Arian Taniwall, Marek Brabec, Vojtěch Berka, Juraj Michalec, Jan Polák
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/982f9757b1bb41d3834cde83761ebc84
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Sumario:The glycemic response to ingested glucose for the treatment of hypoglycemia following exercise in type 1 diabetes patients has never been studied. Therefore, we aimed to characterize glucose dynamics during a standardized bout of hypoglycemia-inducing exercise and the subsequent hypoglycemia treatment with the oral ingestion of glucose. Ten male patients with type 1 diabetes performed a standardized bout of cycling exercise using an electrically braked ergometer at a target heart rate (THR) of 50% of the individual heart rate reserve, determined using the Karvonen equation. Exercise was terminated when hypoglycemia was reached, followed by immediate hypoglycemia treatment with the oral ingestion of 20 g of glucose. Arterialized blood glucose (ABG) levels were monitored at 5 min intervals during exercise and for 60 min during recovery. During exercise, ABG decreased at a mean rate of 0.11 ± 0.03 mmol/L·min<sup>−1</sup> (minimum: 0.07, maximum: 0.17 mmol/L·min<sup>−1</sup>). During recovery, ABG increased at a mean rate of 0.13 ± 0.05 mmol/L·min<sup>−1</sup> (minimum: 0.06, maximum: 0.19 mmol/L·min<sup>−1</sup>). Moreover, 20 g of glucose maintained recovery from hypoglycemia throughout the 60 min postexercise observation window.