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請使用永久網址來引用或連結此文件:
https://irlib.pccu.edu.tw/handle/987654321/35855
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| 題名: | The Supplementation of Branched-Chain Amino Acids, Arginine, and Citrulline Improves Endurance Exercise Performance in Two Consecutive Days |
| 作者: | Cheng, IS (Cheng, I-Shiung)
Wang, YW (Wang, Yi-Wen)
Chen, IF (Chen, I-Fan)
Hsu, GS (Hsu, Gi-Sheng)
Hsueh, CF (Hsueh, Chun-Fang)
Chang, CK (Chang, Chen-Kang) |
| 貢獻者: | 運教所 |
| 關鍵詞: | Central fatigue
time trial
neurotransmitter
hyperammonemia
tryptophan |
| 日期: | 2016-09 |
| 上傳時間: | 2017-04-11 13:28:04 (UTC+8) |
| 摘要: | 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. |
| 關聯: | JOURNAL OF SPORTS SCIENCE AND MEDICINE 卷: 15期: 3 頁碼: 509-515 |
| 顯示於類別: | [運動教練研究所] 期刊論文
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