| Carbohydrate attenuates perceived exertion during intermittent exercise and recovery. | |
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MedLine Citation:
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PMID: 17468589 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this study was to examine the effect of carbohydrate supplementation on differentiated and undifferentiated ratings of perceived exertion (RPE) during prolonged intermittent exercise and recovery. METHODS: Twelve male subjects cycled for 2.0 h at 64% Wmax and 73% V O2peak with 3-min rest intervals interspersed every 10 min (2.6 h of total exercise time, including rest intervals) with placebo (P) or carbohydrate (C) beverages. RPE was assessed during the last minute of each 10-min exercise interval and then every 30 s during the 3-min recovery period. RESULTS: The pattern of change in RPE over time was significantly different between C and P ingestion (P < 0.05), with attenuated RPE responses found for both overall body (O) and legs (L). A significant main effect was found for recovery RPE-O between C and P ingestion (P < 0.05), with attenuated RPE responses found in the later part of the 2-h run. C relative to P ingestion was associated with higher respiratory exchange ratios and plasma levels of glucose and with lower levels of plasma cortisol. CONCLUSIONS: These data indicate that carbohydrate supplementation attenuates perceived exertion during prolonged intermittent exercise and recovery. |
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Authors:
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Alan C Utter; Jie Kang; David C Nieman; Charles L Dumke; Steven R McAnulty; Lisa S McAnulty |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 39 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2007 May |
Date Detail:
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Created Date: 2007-04-30 Completed Date: 2007-07-03 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 880-5 Citation Subset: IM; S |
Affiliation:
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Departments of Health, Leisure, and Exercise Science, Appalachian State University, Boone, NC 28608, USA. utterac@appstate.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bicycling
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physiology* Carbohydrates / pharmacology* Fatigue / blood, psychology* Humans Male North Carolina Physical Exertion* Placebos Rest / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Carbohydrates; 0/Placebos |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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