Article (Scientific journals)
Blood Glucose Levels of Subelite Athletes During 6 Days of Free Living.
Thomas, Felicity Louise; Pretty, Chris G.; Desaive, Thomas et al.
2016In Journal of Diabetes Science and Technology
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Keywords :
athletes; continuous glucose monitoring; exercise; fasting blood glucose; hyperglycemia; postprandial glucose
Abstract :
[en] BACKGROUND: Continuous glucose monitoring (CGM) devices, with their 1-5 min measurement interval, allow blood glucose (BG) concentration dynamics to be captured more frequently and less invasively than traditional BG measures. One cohort CGM could provide insight is athletes. This study investigates what impact their heightened energy expenditure and dietary intake may have on their ability to achieve optimal BG. METHODS: Ten subelite athletes (resting HR<60 bpm, training>6 hrs per week) were recruited. Two Ipro2 CGM devices (Medtronic Minimed, Northridge, CA) were inserted into the abdomen and remained in place for ~6 days. Time in band was calculated as the percentage of CGM BG measurements with in the 4.0-6.0 mmol/L. Fasting glucose was calculated using CGM calibration BG measurements and postprandial glucose response was also calculated using the CGM values. RESULTS: 4/10 athletes studied spent more than 70% of the total monitoring time above 6.0 mmol/L even with the 2-hour period after meals is excluded. Fasting BG was also in the ADA defined prediabetes range for 3/10 athletes. Only 1 participant spent substantial time below 4.0 mmol/L which was largely due to significantly lower energy intake compared to recommendations. CONCLUSIONS: Contrary to expectations high BG appears to be more of a concern for athletes then low BG even in those with the highest energy expenditure and consuming below the recommended carbohydrate intake. This study warrants further investigation on the recommended diets and the BG of athletes to better determine the causes and impact of this hyperglycemia on overall athlete health.
Disciplines :
Endocrinology, metabolism & nutrition
Author, co-author :
Thomas, Felicity Louise ;  Université de Liège - ULiège > Doct. sc. ingé. & techno. (électr., électro. & inf- paysage)
Pretty, Chris G.
Desaive, Thomas  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Chase, J. Geoffrey
Language :
English
Title :
Blood Glucose Levels of Subelite Athletes During 6 Days of Free Living.
Publication date :
2016
Journal title :
Journal of Diabetes Science and Technology
ISSN :
1932-3107
eISSN :
1932-2968
Publisher :
Diabetes Technology Society, Foster city, United States - California
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
(c) 2016 Diabetes Technology Society.
Available on ORBi :
since 03 October 2016

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