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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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2012
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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. |
format | Online Article Text |
id | pubmed-3497003 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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