短期Beta-丙胺酸增補對下坡跑運動引起肌肉損傷的影響

目的：探討四週beta-丙胺酸增補對下坡跑運動後肌肉損傷的影響。方法：16名大專男性學生進行分組：beta-丙胺酸組或安慰劑組。以雙盲實驗設計進行增補，每日攝取三次（共4.8克）並持續增補四週後，進行30分鐘強度70% VO^2max的下坡跑運動，並於運動前、運動後24-72小時進行肌肉損傷指標與氧化傷害指標的檢測。結果：beta-丙胺酸組只有肌酸激酶於運動後72小時顯著低於安慰劑組、以及關節活動角度於運動後48與72小時，顯著高於安慰劑組。此外，在運動前或運動後beta-丙胺酸組的丙二醛都顯著低於安慰劑組。結論：四週的beta-丙胺酸增補可能具有減緩下坡跑運動後肌肉損傷的效益，特別是降低肌酸激酶與促進關節活動角度的恢復。另外，beta-丙胺酸的增補也可能具有減緩氧化傷害的效益。

關鍵字

離心運動；肌酸激酶；肌肉痠痛；氧化傷害

並列摘要

Purpose: This study aimed to investigate the effects of four-week beta-alanine supplementation on muscle damage induced by downhill running. Methods: 16 male college students were assigned into beta-alanine group and placebo group. This study was performed in a double-blind experimental design. Participants received beta-alanine supplements (4.8 g‧d^(-1)) or placebos three times a day for 4 weeks. After four-week supplementation, all participants performed downhill running on treadmill lasted for 30 mins at a speed corresponding to intensity of 70% VO_2max. Muscle damage and oxidative damage parameters were measured before, and 24-72 hours after running. Results: Only creatine kinase (CK) in beta-alanine group was significantly lower at 72 hours post-exercise and range of motion (ROM) in beta-alanine group was significantly higher at 48 and 72 hours post-exercise when compared to placebo group. Moreover, malondialdehyde (MDA) was significantly lower in beta-alanine group than in placebo group, regardless of times. Conclusion: Four weeks of beta-alanine supplementation may have benefits in reducing the amount of muscle damage induced by downhill running, especially in CK and ROM. In addition, beta-alanine supplementation may also have benefits in reducing the oxidative damage induced by downhill running.

並列關鍵字

eccentric exercise ； creatine kinase ； muscle soreness ； oxidative damage

參考文獻

吳家慶、謝伸裕(2008)。動態恢復強度對損傷肌肉之功能及跑步經濟性的影響。體育學報，41(4)，1-14。doi: 10.6222/

Alessio, H. M., Hagerman, A., Fulkerson, B. K., Ambrose, J., Rice, R., & Wiley, R. (2000). Generation of reactive oxygen species after exhaustive aerobic and isometric exercise. American College of Sports Medicine, 32(9), 1576-1581. doi: 10.1097/00005768-200009000- 00008

Atashak, S, Sharafi, H, Azarbayjani, M. A. , St a n n a r d , S. R. , Go l i , M. A. , & Haghighi, M. M. (2013). Effect of omega-3 supplementation on the blood levels of oxida t ive s t r e s s , mus c l e damage and inflammation markers after acute resistance exercise in young athletes. Kinesiology, 45(1), 22-29. doi: 10.13140/2.1.4270.9447

Baguet, A., Bourgois, J., Vanhee, L., Achten, E., & Derave, W. (2010). Important role of muscle carnosine in rowing performance. Journal of Applied Physiology, 109(4), 1096- 1101. doi: 10.1152/japplphysiol.00141.2010

Batrukova, M. A., & Rubstov, A. M. (1997). Histidine-containing dipeptides as endogenous regulators of the activity of sarcoplasmic reticulum Ca-release channels. Biochimica et Biophysica Acta (BBA)–Biomembranes, 1324(1), 142-150. doi: 10.1016/S0005- 2736(96)00216-7

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短期Beta-丙胺酸增補對下坡跑運動引起肌肉損傷的影響

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