Cited by 1Muscle metabolism and nutritionCardiovascular and exercise physiologySports Performance and Training

Influence of Isomaltulose Ingestion on Fat Oxidation During Inclemental Exercise in Endurance Athletes

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Hattori, Satoshi, Noguchi, Ayaka, Sasagawa, Katsumi, Ogata, Hitomi, Kobayashi, Masashi, Omi, Naomi·2019·American Journal of Sports Science

Abstract

Isomaltulose (ISO) is a carbohydrate (CHO) with metabolic properties that makes it slowly digested and less likely to raise postprandial blood glucose response. We considered that isomaltulose ingestion was difficult to inhibit fat oxidation during incremental exercise. Here we investigated the effect of isomaltulose ingestion on fat oxidation during incremental exercise on a cycle ergometer in endurance athletes (n=10) who performed an incremental exercise after ISO or sucrose (SUC) ingestion. We measured the fat and CHO oxidation, blood glucose concentration, and blood lactate concentration of the subjects during the incremental exercise. Between the ISO and SUC groups, the fat oxidation was significantly different at 3 min (p<0.05) and CHO oxidation was significantly different at 3, 6, and 12 min (p<0.05). The ISO group's blood glucose concentrations were significantly lower than those of the SUC group at −5, 3, 6, 9, and 12 min (p<0.05). Similarly, the ISO group's blood lactate concentrations were significantly lower than those of the SUC group at −5, 0, 3, 6, 9, and 18 min (p<0.05). These results indicate that isomaltulose ingestion causes only slight fat oxidation inhibition and a slow increase in blood lactate levels compared with sucrose ingestion by a gradual rise in the blood glucose level.

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Crossref · 10.11648/j.ajss.20190704.20

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  1. Jeukendrup AE, Jentjens R. 2000. Oxidation of carbohydrate feedings during prolonged exercise: current thoughts, guidelines and directions for future research. Sports Med. 29 (6): 407-24.

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Authors
Hattori, S., Noguchi, A., Sasagawa, K., Ogata, H., Kobayashi, M., & Omi, N.
Affiliations
  • University of Tsukuba (JP)
  • Bourbon Corporation (Japan) (JP)
Venue
American Journal of Sports Science
Published
2019
Volume
7
Issue
4
Pages
193
ISSN
  • 2330-8540 (ISSN-L)
  • 2330-8559
OpenAlex
W2996615384
Cited by
1
References
23
Citations by year
2020: 1
FWCI
0.13
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
American Journal of Sports Science (publishedVersion, cc-by)
Funders
Japan Society for the Promotion of Science (17K17911)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
isomaltulose, fat oxidation, incremental exercise, endurance athletes, sucrose intake, carbohydrate oxidation, blood glucose, blood lactate, exercise energy metabolism, postprandial glucose response

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