| A single versus multiple bouts of moderate-intensity exercise for fat metabolism. | |
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MedLine Citation:
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PMID: 21470361 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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This study compared the fat metabolism between 'a single bout of 30-min exercise' and 'three bouts of 10-min exercise' of the same intensity (60% maximal oxygen uptake) and total exercise duration (30 min). Nine healthy men participated in three trials: (1) a single 30-min bout of exercise (Single), (2) three 10-min bouts of exercise, separated by a 10-min rest (Repeated) and (3) rest (Rest). Each exercise was performed with a cycle ergometer at 60% of maximal oxygen uptake, followed by 180-min rest. Blood lactate concentration increased significantly after exercise in the Single and Repeated trials (P<0·05), but the Single trial showed a significantly higher value during the recovery period (P<0·05). No significant difference was observed in the responses of plasma glycerol concentration. The Repeated trial produced a smaller increase in the ratings of perceived exertion during the exercise (P<0·01). During the exercise, no significant difference was observed in respiratory exchange ratio (RER) between the Single and Repeated trials. However, the RER values during the recovery period were significantly lower in the Repeated trial than in the Single and Rest trials (P<0·05), indicating higher relative contribution of fat oxidation in the Repeated trial (P<0·05). These results suggest that the repetition of 10-min of moderate exercise can contribute to greater exercise-induced fat oxidation compared with a single 30-min bout of continuous exercise. |
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Authors:
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Kazushige Goto; Kiyoji Tanaka; Naokata Ishii; Sunao Uchida; Kaoru Takamatsu |
Publication Detail:
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Type: Journal Article Date: 2011-01-10 |
Journal Detail:
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Title: Clinical physiology and functional imaging Volume: 31 ISSN: 1475-097X ISO Abbreviation: Clin Physiol Funct Imaging Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-07 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137604 Medline TA: Clin Physiol Funct Imaging Country: England |
Other Details:
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Languages: eng Pagination: 215-20 Citation Subset: IM |
Copyright Information:
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© 2011 The Authors. Clinical Physiology and Functional Imaging © 2011 Scandinavian Society of Clinical Physiology and Nuclear Medicine. |
Affiliation:
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Faculty of Sport and Health Science, Ritsumeikan University, Kusatsushi, Shiga, Japan Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Meguro, Tokyo, Japan Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan Faculty of Health and Sport Sciences, Ryutsu Keizai University, Ryugasaki, Ibaraki, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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