Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.

The artificial pancreas is a closed-loop insulin delivery system that automatically regulates glucose levels in individuals with type 1 diabetes. In-silico testing using simulation environments accelerates the development of better artificial pancreas systems. Simulation environments need an accurat...

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Main Authors: Haneen Alkhateeb, Anas El Fathi, Milad Ghanbari, Ahmad Haidar
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248280&type=printable
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author Haneen Alkhateeb
Anas El Fathi
Milad Ghanbari
Ahmad Haidar
author_facet Haneen Alkhateeb
Anas El Fathi
Milad Ghanbari
Ahmad Haidar
author_sort Haneen Alkhateeb
collection DOAJ
description The artificial pancreas is a closed-loop insulin delivery system that automatically regulates glucose levels in individuals with type 1 diabetes. In-silico testing using simulation environments accelerates the development of better artificial pancreas systems. Simulation environments need an accurate model that captures glucose dynamics during exercise to simulate real-life scenarios. We proposed six variations of the Bergman Minimal Model to capture the physiological effects of moderate exercise on glucose dynamics in individuals with type 1 diabetes. We estimated the parameters of each model with clinical data using a Bayesian approach and Markov chain Monte Carlo methods. The data consisted of measurements of plasma glucose, plasma insulin, and oxygen consumption collected from a study of 17 adults with type 1 diabetes undergoing aerobic exercise sessions. We compared the models based on the physiological plausibility of their parameters estimates and the deviance information criterion. The best model features (i) an increase in glucose effectiveness proportional to exercise intensity, and (ii) an increase in insulin action proportional to exercise intensity and duration. We validated the selected model by reproducing results from two previous clinical studies. The selected model accurately simulates the physiological effects of moderate exercise on glucose dynamics in individuals with type 1 diabetes. This work offers an important tool to develop strategies for exercise management with the artificial pancreas.
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spelling doaj-art-78a6f37833e84a95a1cdc40a67b2ef4e2025-08-20T02:00:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01163e024828010.1371/journal.pone.0248280Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.Haneen AlkhateebAnas El FathiMilad GhanbariAhmad HaidarThe artificial pancreas is a closed-loop insulin delivery system that automatically regulates glucose levels in individuals with type 1 diabetes. In-silico testing using simulation environments accelerates the development of better artificial pancreas systems. Simulation environments need an accurate model that captures glucose dynamics during exercise to simulate real-life scenarios. We proposed six variations of the Bergman Minimal Model to capture the physiological effects of moderate exercise on glucose dynamics in individuals with type 1 diabetes. We estimated the parameters of each model with clinical data using a Bayesian approach and Markov chain Monte Carlo methods. The data consisted of measurements of plasma glucose, plasma insulin, and oxygen consumption collected from a study of 17 adults with type 1 diabetes undergoing aerobic exercise sessions. We compared the models based on the physiological plausibility of their parameters estimates and the deviance information criterion. The best model features (i) an increase in glucose effectiveness proportional to exercise intensity, and (ii) an increase in insulin action proportional to exercise intensity and duration. We validated the selected model by reproducing results from two previous clinical studies. The selected model accurately simulates the physiological effects of moderate exercise on glucose dynamics in individuals with type 1 diabetes. This work offers an important tool to develop strategies for exercise management with the artificial pancreas.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248280&type=printable
spellingShingle Haneen Alkhateeb
Anas El Fathi
Milad Ghanbari
Ahmad Haidar
Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
PLoS ONE
title Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
title_full Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
title_fullStr Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
title_full_unstemmed Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
title_short Modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes.
title_sort modelling glucose dynamics during moderate exercise in individuals with type 1 diabetes
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248280&type=printable
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AT anaselfathi modellingglucosedynamicsduringmoderateexerciseinindividualswithtype1diabetes
AT miladghanbari modellingglucosedynamicsduringmoderateexerciseinindividualswithtype1diabetes
AT ahmadhaidar modellingglucosedynamicsduringmoderateexerciseinindividualswithtype1diabetes