Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes

Aim. To explore the factors associated with exercise-induced acute capillary glucose (CapBG) changes in individuals with type 2 diabetes (T2D). Methods. Fifteen individuals with T2D were randomly assigned to energy-matched high intensity interval exercise (HI-IE) and moderate intensity continuous ex...

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Main Authors: Tasuku Terada, Alanna Friesen, Baljot S. Chahal, Gordon J. Bell, Linda J. McCargar, Normand G. Boulé
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2013/591574
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author Tasuku Terada
Alanna Friesen
Baljot S. Chahal
Gordon J. Bell
Linda J. McCargar
Normand G. Boulé
author_facet Tasuku Terada
Alanna Friesen
Baljot S. Chahal
Gordon J. Bell
Linda J. McCargar
Normand G. Boulé
author_sort Tasuku Terada
collection DOAJ
description Aim. To explore the factors associated with exercise-induced acute capillary glucose (CapBG) changes in individuals with type 2 diabetes (T2D). Methods. Fifteen individuals with T2D were randomly assigned to energy-matched high intensity interval exercise (HI-IE) and moderate intensity continuous exercise (MI-CE) interventions and performed a designated exercise protocol 5 days per week for 12 weeks. The duration of exercise progressed from 30 to 60 minutes. CapBG was measured immediately before and after each exercise session. Timing of food and antihyperglycemic medication intake prior to exercise was recorded. Results. Overall, the mean CapBG was lowered by 1.9 mmol/L (P<0.001) with the change ranging from −8.9 to +2.7 mmol/L. Preexercise CapBG (44%; P<0.001), medication (5%; P<0.001), food intake (4%; P=0.043), exercise duration (5%; P<0.001), and exercise intensity (1%; P=0.007) were all associated with CapBG changes, explaining 59% of the variability. Conclusion. The greater reduction in CapBG seen in individuals with higher preexercise CapBG may suggest the importance of exercise in the population with elevated glycemia. Lower blood glucose can be achieved with moderate intensity exercise, but prolonging exercise duration and/or including brief bouts of intense exercise accentuate the reduction, which can further be magnified by performing exercise after meals and antihyperglycemic medication. This trial is registered with ClinicalTrial.gov NCT01144078.
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spelling doaj-art-97300433a6054708ad4b6e7715bde1522025-02-03T01:13:12ZengWileyJournal of Diabetes Research2314-67452314-67532013-01-01201310.1155/2013/591574591574Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 DiabetesTasuku Terada0Alanna Friesen1Baljot S. Chahal2Gordon J. Bell3Linda J. McCargar4Normand G. Boulé5Faculty of Physical Education & Recreation, University of AB, 1-059 Li Ka Shing Center, Edmonton, AB, T6G 2H9, CanadaFaculty of Physical Education & Recreation, University of AB, 1-059 Li Ka Shing Center, Edmonton, AB, T6G 2H9, CanadaFaculty of Physical Education & Recreation, University of AB, 1-059 Li Ka Shing Center, Edmonton, AB, T6G 2H9, CanadaFaculty of Physical Education & Recreation, University of AB, 1-059 Li Ka Shing Center, Edmonton, AB, T6G 2H9, CanadaDepartment of Agricultural, Food and Nutritional Science, University of AB, 2-012D Li Ka Shing Center, Health Research Innovation, Edmonton, AB, T6G 2H9, CanadaFaculty of Physical Education & Recreation, University of AB, 1-059 Li Ka Shing Center, Edmonton, AB, T6G 2H9, CanadaAim. To explore the factors associated with exercise-induced acute capillary glucose (CapBG) changes in individuals with type 2 diabetes (T2D). Methods. Fifteen individuals with T2D were randomly assigned to energy-matched high intensity interval exercise (HI-IE) and moderate intensity continuous exercise (MI-CE) interventions and performed a designated exercise protocol 5 days per week for 12 weeks. The duration of exercise progressed from 30 to 60 minutes. CapBG was measured immediately before and after each exercise session. Timing of food and antihyperglycemic medication intake prior to exercise was recorded. Results. Overall, the mean CapBG was lowered by 1.9 mmol/L (P<0.001) with the change ranging from −8.9 to +2.7 mmol/L. Preexercise CapBG (44%; P<0.001), medication (5%; P<0.001), food intake (4%; P=0.043), exercise duration (5%; P<0.001), and exercise intensity (1%; P=0.007) were all associated with CapBG changes, explaining 59% of the variability. Conclusion. The greater reduction in CapBG seen in individuals with higher preexercise CapBG may suggest the importance of exercise in the population with elevated glycemia. Lower blood glucose can be achieved with moderate intensity exercise, but prolonging exercise duration and/or including brief bouts of intense exercise accentuate the reduction, which can further be magnified by performing exercise after meals and antihyperglycemic medication. This trial is registered with ClinicalTrial.gov NCT01144078.http://dx.doi.org/10.1155/2013/591574
spellingShingle Tasuku Terada
Alanna Friesen
Baljot S. Chahal
Gordon J. Bell
Linda J. McCargar
Normand G. Boulé
Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
Journal of Diabetes Research
title Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
title_full Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
title_fullStr Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
title_full_unstemmed Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
title_short Exploring the Variability in Acute Glycemic Responses to Exercise in Type 2 Diabetes
title_sort exploring the variability in acute glycemic responses to exercise in type 2 diabetes
url http://dx.doi.org/10.1155/2013/591574
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