Cited by 32Diabetes Management and ResearchMuscle metabolism and nutritionSports Performance and Training

Isomaltulose Improves Glycemia and Maintains Run Performance in Type 1 Diabetes

BRACKEN, RICHARD MICHAEL, PAGE, RHYDIAN, GRAY, BENJAMIN, KILDUFF, LIAM P., WEST, DANIEL J., STEPHENS, JEFFREY W., BAIN, STEPHEN C.·2012·Medicine & Science in Sports & Exercise

Abstract

PURPOSE: Individuals with type 1 diabetes mellitus (T1DM) are encouraged to reduce rapid-acting insulin and consume CHO to prevent hypoglycemia during or after exercise. However, research comparing the metabolic and performance effects of different CHO is limited. This study compared the alterations in metabolism and fuel oxidation in response to performance running after preexercise ingestion of isomaltulose or dextrose in T1DM. METHODS: After preliminary testing, on two occasions, seven T1DM individuals consumed 0.6 g·kg⁻¹ body mass of either dextrose (DEX; glycemic index = 96) or isomaltulose (ISO; glycemic index = 32), 2 h before a discontinuous incremental run to 80% V˙O2peak on a motorized treadmill followed by a 10-min all-out performance test on a nonmotorized treadmill. Blood glucose (BG), acid-base, and cardiorespiratory parameters were measured 2 h before, during, and after both run tests. Data (mean ± SEM) were analyzed using repeated-measures ANOVA. RESULTS: Preexercise BG area under the curve was lower under ISO in comparison with DEX (ISO = +4.0 ± 0.3 mmol·L⁻¹·h⁻¹ vs DEX = +7.0 ± 0.6 mmol·L⁻¹·h⁻¹, P < 0.01). Resting blood lactate concentrations and rate of CHO oxidation under ISO were greater than those elicited under DEX (P < 0.05). There were no metabolic or cardiorespiratory differences between conditions in response to submaximal exercise despite lower BG concentrations under ISO (P < 0.05). T1DM individuals completed the same distance at the same speed during the 10-min run test under both conditions (not significant). CONCLUSIONS: Consumption of isomaltulose alongside rapid-acting insulin reduction improves BG responses to exercise and produces a similar high-intensity run performance compared with dextrose in T1DM individuals.

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Crossref · 10.1249/mss.0b013e31823f6557

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  • In physically-active type-I diabetic patients, consumption of isomaltulose alongside rapid-acting insulin reduction improved blood glucose responses to exercise and produced a similar high-intensity run performance compared with dextrose.

    “For instance, positive metabolic effects have been reported in physically-active type-I diabetic patients given that the consumption of isomaltulose alongside rapid-acting insulin reduction improved blood glucose responses to exercise and produced a similar high-intensity run performance compared with dextrose [49].”

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Authors
BRACKEN, R. M., PAGE, R., GRAY, B., KILDUFF, L. P., WEST, D. J., STEPHENS, J. W., & BAIN, S. C.
Affiliations
  • Swansea University (GB)
  • Northumbria University (GB)
Venue
Medicine & Science in Sports & Exercise
Published
2012-05
Volume
44
Issue
5
Pages
800-808
ISSN
0195-9131 (ISSN-L)
OpenAlex
W2007266392
Cited by
32
References
39
Citations by year
2026: 1 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 6 · 2019: 2 · 2018: 1 · 2017: 3 · 2016: 4 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 1
FWCI
0.79
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
isomaltulose, type 1 diabetes, glycemic index, D-glucose, blood glucose, exercise performance, running, fuel oxidation, blood lactate, hypoglycemia prevention, acid-base balance
MeSH terms
Adult, Analysis of Variance, Blood Glucose, Chromatography, High Pressure Liquid, Diabetes Mellitus, Type 1, Exercise Test, Female, Glucose, Humans, Hydrogen-Ion Concentration, Insulin, Isomaltose, Lactates, Male, Oxygen Consumption, Running, Area Under Curve, Glycemic Index

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