Introduction: Football is a sport that develops actions intermittent high-intensity exercise using the anaerobic pathway, for that reason, the muscle fatigue would produce primarily by increasing acidosis. Carnosine, which is formed from L-histidine, ß-alanine, has proven to produce an effect "buffer" of acidosis.
Objective: To determine the effect of ß-alanine supplementation, on three successive Wingate tests and compare the average power, maximum power and lactate blood in selected female college soccer.
Methods: We evaluated 10 football players who were three Wingate, 5 min rest between each sprint, determining the average power, maximum and lactate at the end of each test, then consumed 2,4 gr/day of ß-alanine for 30 days and repeated the tests. The control group (n=8) performed the same tests, but without consuming the supplement. Monark cycle ergometer was used (Ergomedic 874E) and to measure lactate the Lactate Pro 2.
Results: The group with supplementation significantly improved mean power difference from the control group. The maximum power improved only in the first sprint unlike the control group and Lactate did not differ.
Discussion: The evidence shows that the ß-alanine improves performance on tests of more than 30 second long, but in our study improves average power and peak power even when performing consecutive sprint, being able to emulate the reality of the football game.
Introducción: El fútbol es un deporte intermitente que desarrolla acciones de alta intensidad usando la vía anaeróbica, por tal razón, la fatiga muscular se produciría principalmente por el aumento de la acidosis. La carnosina, la cual se forma a partir de L-histidina y ß-alanina, ha demostrado producir un efecto “Tampón” sobre la acidosis muscular. Objetivo: Determinar el efecto de la suplementación con ß-alanina, en tres pruebas de Wingate sucesivas, y comparar la potencia media, máxima y el lactato sanguíneo en seleccionadas universitarias de fútbol femenino. Métodos: Se evaluaron 10 jugadoras de futbol, quienes realizaron tres Wingate, descansando 5 min entre cada sprint, determinando la potencia media, máxima y el lactato al final de cada prueba, posteriormente consumieron 2,4 gr/día de ß-alanina por 30 días y se repitieron las pruebas. El grupo control (n=8) realizó las mismas pruebas, pero sin consumir el suplemento. Se usó el cicloergómetro Monark (Ergomedic 874E) y para medir lactato el Lactate Pro 2. Resultados: El grupo con suplementación, mejoró significativamente (p.
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