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Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers

Although some laboratory-based studies show an ergogenic effect with beta-alanine supplementation, there is a lack of field-based research in training and competition settings. Elite/Sub-elite swimmers (n = 23 males and 18 females, age = 21.7 ± 2.8 years; mean ± SD) were supplemented with either bet...

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Autores principales: Chung, Weiliang, Shaw, Greg, Anderson, Megan E., Pyne, David B., Saunders, Philo U., Bishop, David J., Burke, Louise M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3497003/
https://www.ncbi.nlm.nih.gov/pubmed/23201763
http://dx.doi.org/10.3390/nu4101441
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author Chung, Weiliang
Shaw, Greg
Anderson, Megan E.
Pyne, David B.
Saunders, Philo U.
Bishop, David J.
Burke, Louise M.
author_facet Chung, Weiliang
Shaw, Greg
Anderson, Megan E.
Pyne, David B.
Saunders, Philo U.
Bishop, David J.
Burke, Louise M.
author_sort Chung, Weiliang
collection PubMed
description Although some laboratory-based studies show an ergogenic effect with beta-alanine supplementation, there is a lack of field-based research in training and competition settings. Elite/Sub-elite swimmers (n = 23 males and 18 females, age = 21.7 ± 2.8 years; mean ± SD) were supplemented with either beta-alanine (4 weeks loading phase of 4.8 g/day and 3.2 g/day thereafter) or placebo for 10 weeks. Competition performance times were log-transformed, then evaluated before (National Championships) and after (international or national selection meet) supplementation. Swimmers also completed three standardized training sets at baseline, 4 and 10 weeks of supplementation. Capillary blood was analyzed for pH, bicarbonate and lactate concentration in both competition and training. There was an unclear effect (0.4%; ±0.8%, mean, ±90% confidence limits) of beta-alanine on competition performance compared to placebo with no meaningful changes in blood chemistry. While there was a transient improvement on training performance after 4 weeks with beta-alanine (−1.3%; ±1.0%), there was an unclear effect at ten weeks (−0.2%; ±1.5%) and no meaningful changes in blood chemistry. Beta-alanine supplementation appears to have minimal effect on swimming performance in non-laboratory controlled real-world training and competition settings.
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spelling pubmed-34970032012-11-29 Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers Chung, Weiliang Shaw, Greg Anderson, Megan E. Pyne, David B. Saunders, Philo U. Bishop, David J. Burke, Louise M. Nutrients Article Although some laboratory-based studies show an ergogenic effect with beta-alanine supplementation, there is a lack of field-based research in training and competition settings. Elite/Sub-elite swimmers (n = 23 males and 18 females, age = 21.7 ± 2.8 years; mean ± SD) were supplemented with either beta-alanine (4 weeks loading phase of 4.8 g/day and 3.2 g/day thereafter) or placebo for 10 weeks. Competition performance times were log-transformed, then evaluated before (National Championships) and after (international or national selection meet) supplementation. Swimmers also completed three standardized training sets at baseline, 4 and 10 weeks of supplementation. Capillary blood was analyzed for pH, bicarbonate and lactate concentration in both competition and training. There was an unclear effect (0.4%; ±0.8%, mean, ±90% confidence limits) of beta-alanine on competition performance compared to placebo with no meaningful changes in blood chemistry. While there was a transient improvement on training performance after 4 weeks with beta-alanine (−1.3%; ±1.0%), there was an unclear effect at ten weeks (−0.2%; ±1.5%) and no meaningful changes in blood chemistry. Beta-alanine supplementation appears to have minimal effect on swimming performance in non-laboratory controlled real-world training and competition settings. MDPI 2012-10-09 /pmc/articles/PMC3497003/ /pubmed/23201763 http://dx.doi.org/10.3390/nu4101441 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Chung, Weiliang
Shaw, Greg
Anderson, Megan E.
Pyne, David B.
Saunders, Philo U.
Bishop, David J.
Burke, Louise M.
Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title_full Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title_fullStr Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title_full_unstemmed Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title_short Effect of 10 Week Beta-Alanine Supplementation on Competition and Training Performance in Elite Swimmers
title_sort effect of 10 week beta-alanine supplementation on competition and training performance in elite swimmers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3497003/
https://www.ncbi.nlm.nih.gov/pubmed/23201763
http://dx.doi.org/10.3390/nu4101441
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