Effect of β-alanine supplementation on 20 km cycling time trial performance

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James, R.M. ORCID: 0000-0002-7119-3159, Cooper, S.B. ORCID: 0000-0001-5219-5020, Robertson, J., Martin, D. ORCID: 0000-0001-8431-6659, Harris, R.C. and Sale, C. ORCID: 0000-0002-5816-4169, 2014. Effect of β-alanine supplementation on 20 km cycling time trial performance. Revista Brasileira de Educação Física e Esporte, 28 (3), pp. 395-403. ISSN 1807-5509

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Official URL: http://doi.org/10.1590/1807-55092014000300395

Abstract

The effects of β-alanine supplementation on high-intensity cycling performance and capacity have been evaluated, although the effects on longer duration cycling performance are unclear. Nineteen UK category 1 male cyclists completed four 20 km cycling time trials, two before and two after supplementation with either 6.4 g•d -1 β-alanine (n = 10; BA) or a matched placebo (n = 9; P). Performance time for the 20 km time trial and 1 km split times were recorded. There was no significant effect of β-alanine supplementation on 20 km time trial performance (BA-pre 1943 ± 129 s; BA-post 1950 ± 147 s; P-pre 1989 ± 106 s; P-post 1986 ± 115 s) or on the performance of each 1 km split. The effect of β-alanine on 20 km time trial performance was deemed unclear as determined by magnitude based inferences. Supplementation with 6.4 g•d -1 of β-alanine for 4 weeks did not affect 20 km cycling time trial performance in well trained male cyclists.

Item Type:

Journal article

Publication Title:

Revista Brasileira de Educação Física e Esporte

Creators:

James, R.M., Cooper, S.B., Robertson, J., Martin, D., Harris, R.C. and Sale, C.

Publisher:

Universidade de Sao Paulo

Date:

2014

Volume:

Number: