| Effect of the classic 1-week glycogen-loading regimen on fat-loading in rats and humans. | |
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MedLine Citation:
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PMID: 21228500 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The purpose of this study was to elucidate the fat-loading effect of the classic 1-wk glycogen-loading regimen histologically in rats and physiologically in humans. In the rat and human studies, an exhaustive swimming exercise and cycle ergometer exercise were loaded on day 1 of a 6-d feeding period, respectively. Thereafter, both the rats and humans were divided into a glycogen-loading regimen consisting of a 3-d high-fat diet and a 3-d high-carbohydrate diet or a 6-d high-carbohydrate diet. After the feeding period in the human study, the human subjects performed a test exercise on day 7 using a cycle ergometer. In the rat study, the intramuscular triglyceride (IMTG) content was 69% greater (p<0.05) after the glycogen-loading regimen than after the high-carbohydrate diet feeding on day 7. In the human study, the respiratory exchange ratios (RER) after the glycogen-loading regimen were 4.9-6% lower than those after the high-carbohydrate diet during the test exercise on day 7 (p<0.05). Our findings suggest that the classical 1-wk glycogen-loading regimen maintained the storage and enhanced the utilization of energy sources during exercise in the skeletal muscle, and that it provides a fat-loading effect, in addition to the glycogen-loading effect, to the skeletal muscle. |
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Authors:
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Akiko Shinohara; Jun Takakura; Akira Yamane; Masashige Suzuki |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of nutritional science and vitaminology Volume: 56 ISSN: 1881-7742 ISO Abbreviation: J. Nutr. Sci. Vitaminol. Publication Date: 2010 |
Date Detail:
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Created Date: 2011-01-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0402640 Medline TA: J Nutr Sci Vitaminol (Tokyo) Country: Japan |
Other Details:
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Languages: eng Pagination: 299-304 Citation Subset: IM |
Affiliation:
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Waseda University School of Human Sciences, Tokorozawa, Japan. a-shino@asagi.waseda.jp |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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