Sodium citrate ingestion increases glycolytic activity but does not enhance 2000 m rowing performance
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Título: | Sodium citrate ingestion increases glycolytic activity but does not enhance 2000 m rowing performance |
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Autor/es: | Martins, Alexandre Nunes | Artioli, Guilherme Giannini | Franchini, Emerson |
Palabras clave: | Sodium citrate | Alkalosis | Acid-base | Fatigue | Rowing | Performance |
Área/s de conocimiento: | Educación Física y Deportiva |
Fecha de publicación: | oct-2010 |
Editor: | Universidad de Alicante. Área de Educación Física y Deporte |
Cita bibliográfica: | MARTINS, Alexandre Nunes; ARTIOLI, Guilherme Giannini; FRANCHINI, Emerson. “Sodium citrate ingestion increases glycolytic activity but does not enhance 2000 m rowing performance”. Journal of human sport and exercise [en línea]. Vol. 5, No. 3 (Oct. 2010), ISSN 1988-5202, pp. 411-417. http://www.jhse.ua.es/index.php/jhse/article/viewArticle/112 [consulta: 26 octubre 2010] |
Resumen: | Sodium citrate-induced alkalosis is an ergogenic strategy that has been proven to enhance physical performance in high-intensity exercises by increasing muscle buffer capacity and reducing the influence of H+ on energy production and contractile processes. The objective of the present study was to evaluate whether acute sodium citrate ingestion may contribute to rowing performance in a 2000-m race simulation. Six well-trained competitive rowers took part in the study, but five of them have completed the whole experimental protocol. They were assessed twice for performance and lactate 2.5 h after the ingestion of a 750-mL natural mango juice containing sodium citrate (0.5 g·kg-1) or no substance added (placebo). The two experiments occurred 7-15 days apart. The study was conducted in a double-blind, placebo-controlled, cross-over fashion. Performance was assessed in a rower ergometer and blood lactate was determined in both conditions at rest and after exercise. Heart-rate and oxygen consumption were monitored throughout the tests. Data were analyzed using the Wilcoxon’s signed rank test. Sodium citrate yielded a significantly higher lactate response to exercise than placebo (p<0.05), but no significant differences were found between treatments for performance, heart-rate and oxygen consumption. In conclusion, sodium citrate promoted a favorable metabolic environment for exercise performance but did not exert any influence on simulated rowing performance. |
URI: | http://hdl.handle.net/10045/15025 |
ISSN: | 1988-5202 |
DOI: | 10.4100/jhse.2010.53.11 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.4100/jhse.2010.53.11 |
Aparece en las colecciones: | Journal of Human Sport and Exercise - 2010, Vol. 5, No. 3 |
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