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Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women

Data from Continuous Glucose Monitoring (CGM) systems may help improve overall daily glycemia; however, the accuracy of CGM during exercise remains questionable. The objective of this single group experimental study was to compare CGM-estimated values to venous plasma glucose (VPG) and capillary pla...

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Autores principales: Herrington, Stefanie J., Gee, David L., Dow, Shireen D., Monosky, Keith A., Davis, Erika, Pritchett, Kelly L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3475238/
https://www.ncbi.nlm.nih.gov/pubmed/23112916
http://dx.doi.org/10.3390/nu4091282
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author Herrington, Stefanie J.
Gee, David L.
Dow, Shireen D.
Monosky, Keith A.
Davis, Erika
Pritchett, Kelly L.
author_facet Herrington, Stefanie J.
Gee, David L.
Dow, Shireen D.
Monosky, Keith A.
Davis, Erika
Pritchett, Kelly L.
author_sort Herrington, Stefanie J.
collection PubMed
description Data from Continuous Glucose Monitoring (CGM) systems may help improve overall daily glycemia; however, the accuracy of CGM during exercise remains questionable. The objective of this single group experimental study was to compare CGM-estimated values to venous plasma glucose (VPG) and capillary plasma glucose (CPG) during steady-state exercise. Twelve recreationally active females without diabetes (aged 21.8 ± 2.4 years), from Central Washington University completed the study. CGM is used by individuals with diabetes, however the purpose of this study was to first validate the use of this device during exercise for anyone. Data were collected between November 2009 and April 2010. Participants performed two identical 45-min steady-state cycling trials (~60% P(max)) on non-consecutive days. Glucose concentrations (CGM-estimated, VPG, and CPG values) were measured every 5 min. Two carbohydrate gel supplements along with 360 mL of water were consumed 15 min into exercise. A product-moment correlation was used to assess the relationship and a Bland-Altman analysis determined error between the three glucose measurement methods. It was found that the CGM system overestimated mean VPG (mean absolute difference 17.4 mg/dL (0.97 mmol/L)) and mean CPG (mean absolute difference 15.5 mg/dL (0.86 mmol/L)). Bland-Altman analysis displayed wide limits of agreement (95% confidence interval) of 44.3 mg/dL (2.46 mmol/L) (VPG compared with CGM) and 41.2 mg/dL (2.29 mmol/L) (CPG compared with CGM). Results from the current study support that data from CGM did not meet accuracy standards from the 15197 International Organization for Standardization (ISO).
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spelling pubmed-34752382012-10-30 Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women Herrington, Stefanie J. Gee, David L. Dow, Shireen D. Monosky, Keith A. Davis, Erika Pritchett, Kelly L. Nutrients Article Data from Continuous Glucose Monitoring (CGM) systems may help improve overall daily glycemia; however, the accuracy of CGM during exercise remains questionable. The objective of this single group experimental study was to compare CGM-estimated values to venous plasma glucose (VPG) and capillary plasma glucose (CPG) during steady-state exercise. Twelve recreationally active females without diabetes (aged 21.8 ± 2.4 years), from Central Washington University completed the study. CGM is used by individuals with diabetes, however the purpose of this study was to first validate the use of this device during exercise for anyone. Data were collected between November 2009 and April 2010. Participants performed two identical 45-min steady-state cycling trials (~60% P(max)) on non-consecutive days. Glucose concentrations (CGM-estimated, VPG, and CPG values) were measured every 5 min. Two carbohydrate gel supplements along with 360 mL of water were consumed 15 min into exercise. A product-moment correlation was used to assess the relationship and a Bland-Altman analysis determined error between the three glucose measurement methods. It was found that the CGM system overestimated mean VPG (mean absolute difference 17.4 mg/dL (0.97 mmol/L)) and mean CPG (mean absolute difference 15.5 mg/dL (0.86 mmol/L)). Bland-Altman analysis displayed wide limits of agreement (95% confidence interval) of 44.3 mg/dL (2.46 mmol/L) (VPG compared with CGM) and 41.2 mg/dL (2.29 mmol/L) (CPG compared with CGM). Results from the current study support that data from CGM did not meet accuracy standards from the 15197 International Organization for Standardization (ISO). MDPI 2012-09-14 /pmc/articles/PMC3475238/ /pubmed/23112916 http://dx.doi.org/10.3390/nu4091282 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Herrington, Stefanie J.
Gee, David L.
Dow, Shireen D.
Monosky, Keith A.
Davis, Erika
Pritchett, Kelly L.
Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title_full Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title_fullStr Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title_full_unstemmed Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title_short Comparison of Glucose Monitoring Methods during Steady-State Exercise in Women
title_sort comparison of glucose monitoring methods during steady-state exercise in women
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3475238/
https://www.ncbi.nlm.nih.gov/pubmed/23112916
http://dx.doi.org/10.3390/nu4091282
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