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Rev. bras. educ. fís. esp ; 28(3): 395-403, Jul-Sep/2014. tab, ilus
Article Dans Anglais | LILACS | ID: lil-726357

Résumé

The effects of ß-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 ß-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 ß-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 ß-alanine on 20 km time trial performance was deemed unclear as determined by magnitude based inferences. Supplementation with 6.4 g•d-1 of ß-alanine for 4 weeks did not affect 20 km cycling time trial performance in well trained male cyclists


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Humains , Cyclisme , Carnosine , Muscles
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