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

James, Ruth Margaret and Cooper, Simon Brian and Robertson, Jacques and Martin, Daniel and Harris, Roger Charles and Sale, Craig (2014) Effect of β-alanine supplementation on 20 km cycling time trial performance. Revista Brasileira de Educação Física e Esporte, 28 (3). pp. 1807-5509. ISSN 1807-5509

Full content URL: https://doi.org/10.1590/1807-55092014000300395

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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 signifi cant 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.

Keywords:carnosine, endurance exercise, exercise test, reliability
Subjects:C Biological Sciences > C600 Sports Science
Divisions:College of Social Science > School of Sport and Exercise Science
ID Code:30912
Deposited On:02 Mar 2018 13:13

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