| Low carbohydrate diet affects the oxygen uptake on-kinetics and rating of perceived exertion in high intensity exercise. | |
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MedLine Citation:
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PMID: 20624251 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract The aim of this study was to determine if the carbohydrate (CHO) availability alters the rate of increase in the rating of perceived exertion (RPE) during high intensity exercise and whether this would be associated with physiological changes. Six males performed high intensity exercise after 48 h of controlled, high CHO (80%) and low CHO (10%) diets. Time to exhaustion was lower in the low compared to high CHO diet. The rate of increase in RPE was greater and the VO(2) slow component was lower in the low CHO diet than in the control. There was no significant condition effect for cortisol, insulin, pH, plasma glucose, potassium, or lactate concentrations. Multiple linear regression indicated that the total amplitude of VO(2) and perceived muscle strain accounted for the greatest variance in the rate of increase in RPE. These results suggest that cardiorespiratory variables and muscle strain are important afferent signals from the periphery for the RPE calculations. |
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Authors:
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Adriano E Lima-Silva; Flávio O Pires; Rômulo C M Bertuzzi; Fábio S Lira; Dulce Casarini; Maria Augusta P D M Kiss |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-7-06 |
Journal Detail:
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Title: Psychophysiology Volume: - ISSN: 1540-5958 ISO Abbreviation: - Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-7-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0142657 Medline TA: Psychophysiology Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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