Accuracy of Continuous Glucose Monitoring (CGM) during Continuous and High-Intensity Interval Exercise in Patients with Type 1 Diabetes Mellitus.
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ABSTRACT: Continuous exercise (CON) and high-intensity interval exercise (HIIE) can be safely performed with type 1 diabetes mellitus (T1DM). Additionally, continuous glucose monitoring (CGM) systems may serve as a tool to reduce the risk of exercise-induced hypoglycemia. It is unclear if CGM is accurate during CON and HIIE at different mean workloads. Seven T1DM patients performed CON and HIIE at 5% below (L) and above (M) the first lactate turn point (LTP?), and 5% below the second lactate turn point (LTP?) (H) on a cycle ergometer. Glucose was measured via CGM and in capillary blood (BG). Differences were found in comparison of CGM vs. BG in three out of the six tests (p < 0.05). In CON, bias and levels of agreement for L, M, and H were found at: 0.85 (-3.44, 5.15) mmol·L(-1), -0.45 (-3.95, 3.05) mmol·L(-1), -0.31 (-8.83, 8.20) mmol·L(-1) and at 1.17 (-2.06, 4.40) mmol·L(-1), 0.11 (-5.79, 6.01) mmol·L(-1), 1.48 (-2.60, 5.57) mmol·L(-1) in HIIE for the same intensities. Clinically-acceptable results (except for CON H) were found. CGM estimated BG to be clinically acceptable, except for CON H. Additionally, using CGM may increase avoidance of exercise-induced hypoglycemia, but usual BG control should be performed during intense exercise.
SUBMITTER: Moser O
PROVIDER: S-EPMC4997402 | biostudies-literature | 2016 Aug
REPOSITORIES: biostudies-literature
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