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題名 | 左旋肉鹼的補充對男子足球選手運動表現與生化值之影響=The Effect of L-Carnitine Supplementation on Male Soccer Players' Exercise Performance and Biochemical Parameter |
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作者 | 張敏娣; 邱奕文; 李寧遠; | 書刊名 | 臺大體育學報 |
卷期 | 17 2010.03[民99.03] |
頁次 | 頁65-78 |
分類號 | 528.9012 |
關鍵詞 | 左旋肉鹼; 運動表現; 生化值; L-carnitine; Exercise performance; Biochemical parameters; |
語文 | 中文(Chinese) |
中文摘要 | 目的:左旋肉鹼(L-carnitine)為運動營養增補劑,可幫助游離性脂肪酸進入肌肉細胞粒線體中,增加脂肪酸的代謝以快速產生能量。本研究欲探討左旋肉鹼的補充對男性足球員在運動表現與訓練後生化值之影響。方法:本實驗以雙盲及隨機方式處理,將男性足球選手分為左旋肉鹼組與安慰劑組,每日口服補充3,200毫克左旋肉鹼或安慰劑3週。組內是以相依樣本t考驗檢定各測試項目之差異,獨立樣本t考驗比較兩組在實驗檢測項目之差異,顯著水準訂為p<.05。實驗檢測項目包括運動表現(12分鐘跑走測驗)和採集足球選手在訓練後的血液以分析生化值,包括血糖、血氨、血乳酸、游離脂肪酸濃度、肌酸激酶活性。結果:左旋肉鹼組雖然在補充後的運動表現顯著優於補充前(p<.05),然而兩組間並無達顯著差異。於訓練後的生化值可觀察到,血糖、血氨、血乳酸、游離脂肪酸濃度以及肌酸激酶活性在左旋肉鹼組和安慰劑組之間無顯著差異。結論:左旋肉鹼的補充不會影響男性足球員的運動表現與血液生化值。 |
英文摘要 | Objective: L-carnitine is an ergogenic aid, which helps to transport free fatty acid into mitochondria in membrane of muscle cells, increases the metabolic rate of fatty acid, and leads to produce energy rapidly. Therefore, the aim of present study was to investigate the effect of L-carnitine supplementation on male soccer players' exercise performance and biochemical parameters after training. Methods: A double blind, random design was used. Male soccer players would be divided into L-carnitine or placebo group. Subjects received 3,200 mg L-carnitine or placebo orally per day for 3 weeks. The measurements included of exercise performance (twelve minutes run-walk test), and blood sampling of soccer players after training were analyzed for biochemical parameters, including of glucose, ammonia, lactic acid, free fatty acid, creatine kinase. Within-group variations for each variable were tested using Student's paired t test. Student's independent t test was used for differences detected among two groups. The level of significance was set at p<.05. Results: The results showed that exercise performance of L-carnitine group before supplement was significantly better than after supplement (p<.05), but caused no significant difference between two groups. The biochemical parameters after training showed that no significant difference was between L-carnitine group and placebo group in plasma glucose, ammonia, lactate, free fatty acid and serum creatine kinase. Conclusions: L-carnitine supplementation may not affecting exercise performance and other biochemical parameters of male soccer players. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。