Does sodium-bicarbonate ingestion improve simulated judo performance?
Int J Sport Nutr Exerc Metab
; 17(2): 206-17, 2007 Apr.
Article
em En
| MEDLINE
| ID: mdl-17507744
ABSTRACT
The aim of the present study was to investigate whether preexercise sodium-bicarbonate ingestion improves judo-related performance. The study used 2 different protocols to evaluate performance 3 bouts of a specific judo test (n = 9) and 4 bouts of the Wingate test for upper limbs (n = 14). In both protocols athletes ingested 0.3 g/kg of sodium bicarbonate or placebo 2 h before the tests. Blood samples were collected to determine lactate level, and levels of perceived exertion were measured throughout the trials. The study used a double-blind, counterbalanced, crossover design. Ingestion of sodium bicarbonate improved performance in Bouts 2 and 3 of Protocol 1 (P < 0.05), mean power in Bouts 3 and 4 of Protocol 2 (P < 0.05), and peak power in Bout 4 of Protocol 2 (P < 0.05). Ingestion of bicarbonate increased lactate concentration in Protocol 1 (P < 0.05) but not in Protocol 2. Ratings of perceived exertion did not differ between treatments. In conclusion, sodium bicarbonate improves judo-related performance and increases blood lactate concentration but has no effect on perceived exertion.
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Base de dados:
MEDLINE
Assunto principal:
Equilíbrio Ácido-Base
/
Artes Marciais
/
Bicarbonato de Sódio
/
Lactatos
Tipo de estudo:
Clinical_trials
/
Guideline
Limite:
Adult
/
Humans
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article