ArticleDiabetes technology & therapeutics2013
Accuracy of continuous glucose monitoring during exercise in type 1 diabetes pregnancy.
Article in Diabetes technology & therapeutics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.
- Different insulin types and regimens for pregnant women with pre-existing diabetes.The Cochrane database of systematic reviews · 2017Pooled it
- Quantifying the acute changes in glucose with exercise in type 1 diabetes: a systematic review and meta-analysis.Sports medicine (Auckland, N.Z.) · 2015Pooled it
- Adding heart rate signal to a control-to-range artificial pancreas system improves the protection against hypoglycemia during exercise in type 1 diabetes.Diabetes technology & therapeutics · 2014Trial
- Accuracy and feasibility of continuous glucose monitoring system in pancreatectomy patients.Langenbeck's archives of surgery · 2025Article
- Factory-Calibrated Continuous Glucose Monitoring Systems in Type 1 Diabetes: Accuracy during In-Clinic Exercise and Home Use.Sensors (Basel, Switzerland) · 2023Article
- Accuracy of CGM Systems During Continuous and Interval Exercise in Adults with Type 1 Diabetes.Journal of diabetes science and technology · 2022Article
- Benefits of Real-Time Continuous Glucose Monitoring in Pregnancy.Diabetes technology & therapeutics · 2021Review
- A Comprehensive Review of Continuous Glucose Monitoring Accuracy during Exercise Periods.Sensors (Basel, Switzerland) · 2021Review
- Accuracy of the Dexcom G6 Glucose Sensor during Aerobic, Resistance, and Interval Exercise in Adults with Type 1 Diabetes.Biosensors · 2020Article
- A comparison of adipose tissue interstitial glucose and venous blood glucose during postprandial resistance exercise in patients with type 2 diabetes.Journal of applied physiology (Bethesda, Md. : 1985) · 2018Article
- Accuracy of Continuous Glucose Monitoring before, during, and after Aerobic and Anaerobic Exercise in Patients with Type 1 Diabetes Mellitus.Biosensors · 2018Article
- Accuracy, User Acceptability, and Safety Evaluation for the FreeStyle Libre Flash Glucose Monitoring System When Used by Pregnant Women with Diabetes.Diabetes technology & therapeutics · 2018Article
- CGM, Pregnancy, and Remote Monitoring.Diabetes technology & therapeutics · 2017Review
- Predicting Plasma Glucose From Interstitial Glucose Observations Using Bayesian Methods.Journal of diabetes science and technology · 2014Article
- Closed-loop artificial pancreas systems: physiological input to enhance next-generation devices.Diabetes care · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundPerformance of continuous glucose monitors (CGMs) may be lower when glucose levels are changing rapidly, such as occurs during physical activity. Our aim was to evaluate accuracy of a current-generation CGM during moderate-intensity exercise in type 1 diabetes (T1D) pregnancy. SUBJECTS AND
methodsAs part of a study of 24-h closed-loop insulin delivery in 12 women with T1D (disease duration, 17.6 years; glycosylated hemoglobin, 6.4%) during pregnancy (gestation, 21 weeks), we evaluated the Freestyle Navigator(®) sensor (Abbott Diabetes Care, Alameda, CA) during afternoon (15:00-18:00 h) and morning (09:30-12:30 h) exercise (55 min of brisk walking on a treadmill followed by a 2-h recovery), compared with sedentary conditions (18:00-09:00 h). Plasma (reference) glucose, measured at regular 15-30-min intervals with the YSI Ltd. (Fleet, United Kingdom) model YSI 2300 analyzer, was used to assess CGM performance.
resultsSensor accuracy, as indicated by the larger relative absolute difference (RAD) between paired sensor and reference glucose values, was lower during exercise compared with rest (median RAD, 11.8% vs. 18.4%; P<0.001). These differences remained significant when correcting for plasma glucose relative rate of change (P<0.001). Analysis by glucose range showed lower accuracy during hypoglycemia for both sedentary (median RAD, 24.4%) and exercise (median RAD, 32.1%) conditions. Using Clarke error grid analysis, 96% of CGM values were clinically safe under resting conditions compared with only 87% during exercise.
conclusionsCompared with sedentary conditions, accuracy of the Freestyle Navigator CGM was lower during moderate-intensity exercise in pregnant women with T1D. This difference was particularly marked in hypoglycemia and could not be solely explained by the glucose rate of change associated with physical activity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.