| Glycemic and insulinemic response to preexercise carbohydrate feedings. | |
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MedLine Citation:
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PMID: 8167654 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of preexercise hyperinsulinemia on exercising plasma glucose, plasma insulin, and metabolic responses were assessed during 50 min cycling at 62% VO2max. Subjects were fed a 6% sucrose/glucose solution (LCHO) or a 20% maltodextrin/glucose solution (HCHO) to induce changes in plasma insulin. During exercise, subjects assessed perceived nauseousness and light-headedness. By the start of exercise, plasma glucose and plasma insulin had increased. In the LCHO trial, plasma glucose values significantly decreased below the baseline value at 30 min of exercise. However, by 40 min, exercise plasma glucose and insulin values were similar to the baseline value. Exercise plasma glucose and insulin did not differ from baseline values in the HCHO trial. Ingestion of LCHO or HCHO was not associated with nausea or lightheadedness. It was concluded that the hyperinsulinemia induced by preexercise feedings of CHO did not result in frank hypoglycemia or adversely affect sensory or physiological responses during 50 min of moderate-intensity cycling. |
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Authors:
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J G Seifert; G L Paul; D E Eddy; R Murray |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of sport nutrition Volume: 4 ISSN: 1050-1606 ISO Abbreviation: Int J Sport Nutr Publication Date: 1994 Mar |
Date Detail:
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Created Date: 1994-06-01 Completed Date: 1994-06-01 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 9307702 Medline TA: Int J Sport Nutr Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 46-53 Citation Subset: IM |
Affiliation:
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Exercise Physiology Laboratory, Gatorade Sports Science Institute, Quaker Oats Co., Barrington, IL 60010. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Glucose / metabolism* Dietary Carbohydrates / metabolism, pharmacology* Exercise / physiology* Humans Hypoglycemia / metabolism Insulin / blood* |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Dietary Carbohydrates; 11061-68-0/Insulin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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