Effect of beta-alanine supplementation on repeated sprint performance during the Loughborough Intermittent Shuttle Test.
Amino Acids
; 43(1): 39-47, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22434182
ABSTRACT
The aim of this study was to examine the effect of ß-alanine supplementation on repeated sprint performance during an intermittent exercise protocol designed to replicate games play. Sixteen elite and twenty non-elite game players performed the Loughborough Intermittent Shuttle Test (LIST) on two separate occasions. Trials were separated by 4 weeks of supplementation with either ß-alanine (BA) or maltodextrin (MD). There was no deterioration in sprint times from Set 1 to Set 6 of the LIST in either group prior to supplementation (elite P=0.92; non-elite P=0.12). Neither BA nor MD supplementation affected sprint times. Blood lactate concentrations were elevated during exercise in both groups, with no effect of supplementation. ß-Alanine supplementation did not significantly improve sprint performance during the LIST. Neither group showed a performance decrement prior to supplementation, which might have masked any benefit from increased muscle buffering capacity due to ß-alanine supplementation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Resistência Física
/
Corrida
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Beta-Alanina
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Desempenho Atlético
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Substâncias para Melhoria do Desempenho
Tipo de estudo:
Clinical_trials
Limite:
Adult
/
Humans
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Male
Idioma:
En
Revista:
Amino Acids
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Reino Unido