Effect of β-alanine supplementation on 20 km cycling time trial performance
| Autor: | Ruth Margaret JAMES, Simon Brian COOPER, Jacques ROBERTSON, Daniel MARTIN, Roger Charles HARRIS, Craig SALE |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Revista Brasileira de Educação Física e Esporte : RBEFE, Vol 28, Iss 3, Pp 395-403 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1981-4690 1807-5509 |
| DOI: | 10.1590/1807-55092014000300395 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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