Limits of Human Endurance

76th Nestlé Nutrition Institute Workshop, Oxford, August 2012

Editor(s): van Loon, L.J.C. (Maastricht)
Meeusen, R. (Brussels)
 

Hydration during Intense Exercise Training

Maughan R.J.a · Meyer N.L.b

Author affiliations

aLoughborough University, Loughborough, UK; bUniversity of Colorado and United States Olympic Committee, Colorado Springs, CO, USA

Related Articles for ""
van Loon LJC, Meeusen R (eds): Limits of Human Endurance. Nestlé Nutr Inst Workshop Ser. Nestec Ltd. Vevey/S. Karger AG Basel, © 2013, vol 76, pp 25-37
https://doi.org/10.1159/000350225

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Article / Publication Details

First-Page Preview
Abstract of  

Published online: July 25, 2013
Cover Date: 2013

Number of Print Pages: 14
Number of Figures: 2
Number of Tables: 1

ISBN: 978-3-318-02408-1 (Print)
eISBN: 978-3-318-02409-8 (Online)

Abstract

Hydration status has profound effects on both physical and mental performance, and sports performance is thus critically affected. Both overhydration and underhydration - if sufficiently severe - will impair performance and pose a risk to health. Athletes may begin exercise in a hypohydrated state as a result of incomplete recovery from water loss induced in order to achieve a specific body mass target or due to incomplete recovery from a previous competition or training session. Dehydration will also develop in endurance exercise where fluid intake does not match water loss. The focus has generally been on training rather than on competition, but sweat loss and fluid replacement in training may have important implications. Hypohydration may impair training quality and may also increase stress levels. It is unclear whether this will have negative effects (reduced training quality, impaired immunity) or whether it will promote a greater adaptive response. Hypohydration and the consequent hyperthermia, however, can enhance the effectiveness of a heat acclimation program, resulting in improved endurance performance in warm and temperate environments. Drinking in training may be important in enhancing tolerance of the gut when athletes plan to drink in competition. The distribution of water between body water compartments may also be important in the initiation and promotion of cellular adaptations to the training stimulus.

© 2013 Nestec Ltd., Vevey/S. Karger AG, Basel



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Article / Publication Details

First-Page Preview
Abstract of  

Published online: July 25, 2013
Cover Date: 2013

Number of Print Pages: 14
Number of Figures: 2
Number of Tables: 1

ISBN: 978-3-318-02408-1 (Print)
eISBN: 978-3-318-02409-8 (Online)

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Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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