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The Supplementation of Branched-Chain Amino Acids, Arginine, and Citrulline Improves Endurance Exercise Performance in Two Consecutive Days.
Cheng, I-Shiung; Wang, Yi-Wen; Chen, I-Fan; Hsu, Gi-Sheng; Hsueh, Chun-Fang; Chang, Chen-Kang.
Afiliación
  • Cheng IS; Department of Physical Education, National Taichung University of Education , Taichung, Taiwan.
  • Wang YW; Department of Physical Education, National Taichung University of Education , Taichung, Taiwan.
  • Chen IF; Graduate Institute of Sport Coaching Science, Chinese Culture University , Taipei, Taiwan.
  • Hsu GS; Department of Sport Performance, National Taiwan University of Sport , Taichung, Taiwan.
  • Hsueh CF; Graduate Institute of Sport Coaching Science, Chinese Culture University , Taipei, Taiwan.
  • Chang CK; Sport Science Research Center, National Taiwan University of Sport , Taichung, Taiwan.
J Sports Sci Med ; 15(3): 509-515, 2016 Sep.
Article en En | MEDLINE | ID: mdl-27803630
The central nervous system plays a crucial role in fatigue during endurance exercise. Branched-chain amino acids (BCAA) could reduce cerebral serotonin synthesis by competing with its precursor tryptophan for crossing the blood brain barrier. Arginine and citrulline could prevent excess hyperammonemia accompanied by BCAA supplementation. This study investigated the combination of BCAA, arginine, and citrulline on endurance performance in two consecutive days. Seven male and three female endurance runners ingested 0.17 g·kg-1 BCAA, 0.05 g·kg-1 arginine and 0.05 g·kg-1 citrulline (AA trial) or placebo (PL trial) in a randomized cross-over design. Each trial contained a 5000 m time trial on the first day, and a 10000 m time trial on the second day. The AA trial had significantly better performance in 5000 m (AA: 1065.7 ± 33.9 s; PL: 1100.5 ± 40.4 s) and 10000 m (AA: 2292.0 ± 211.3 s; PL: 2375.6 ± 244.2 s). The two trials reported similar ratings of perceived exertion. After exercise, the AA trial had significantly lower tryptophan/BCAA ratio, similar NH3, and significantly higher urea concentrations. In conclusion, the supplementation could enhance time-trial performance in two consecutive days in endurance runners, possibly through the inhibition of cerebral serotonin synthesis by BCAA and the prevention of excess hyperammonemia by increased urea genesis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Clinical_trials Idioma: En Revista: J Sports Sci Med Año: 2016 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Turquía
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Clinical_trials Idioma: En Revista: J Sports Sci Med Año: 2016 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Turquía