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頁籤選單縮合
題 名 | 鐵人三項比賽對肌肉損傷指標與脂質過氧化的影響=Effects of a Triathlon Race on the Indices of Muscle Damage and Lipid Peroxidation |
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作 者 | 吳家慶; 黃滄海; 謝伸裕; | 書刊名 | 運動生理暨體能學報 |
卷 期 | 2 2005.05[民94.05] |
頁 次 | 頁93-102 |
分類號 | 528.9013 |
關鍵詞 | 鐵人三項; 肌肉損傷; 脂質過氧化; Triathlon; Muscle damage; Lipid peroxidation; |
語 文 | 中文(Chinese) |
中文摘要 | 奧運距離鐵人三項是一種耐力運動,必須連續完成游泳1.5公里、自由車40公里及跑步10公里。三項選手在賽後數天仍會感到肌肉酸痛,這種現象與肌肉組織損傷有關。機械壓力(mechanical stress)是導致肌肉損傷的主要因素,肌肉損傷會造成肌肉內的肌酸激酶(CK)、肌紅蛋白(Mb)及乳酸去氫酶(LDH)釋放至血中。有文獻指出長時間耐力運動所導致的氧化壓力也會造成肌肉的損傷,激烈耐力運動會使氧自由基大量增加,傷害肌肉細胞膜,引起丙二醛(MDA)的產生。目的:在探討奧運距離鐵人三項比賽對丙二醛濃度、肌肉損傷指標及血液指數的影響。方法:受試者為十名男性鐵人三項選手(年齡27.1±4.1歲,身高170.8±5.4公分,體重69.1±6.0公斤),平均完成時間2小時25±7分。血液的採集時間點共有6個:賽前12小時(Pre)、賽後立即(H0)、l小時(H1)、24小時(H24)、72小時(H72)和120小時(H120)。血液樣本的分析有CK活性、LDH活性、Mb、MDA濃度及血液指數,所有數值都經脫水校正。結果:血清Mb濃度在H0和Hl, CK活性在H24和H72, LDH活性在H0、H1、H24、H72較賽前(Pre)有顯著增加(p<.05),血液指數方面也顯示有急性發炎的現象,但血漿MDA濃度在各時間點間並無顯著變化。結論:在完成奧運距離的鐵人三項後會發生急性發炎及肌肉損傷的現象,但這些指標分別在賽後24小時及72小時恢復至基礎值。賽後血漿中脂質過氧化的指標丙二醛(MDA)濃度在賽後各個時間點並無顯著增加,顯示奧運距離鐵人三項並不會引起脂質過氧化,而肌肉損傷也並非由於脂質過氧化的促進所造成。在本研究中,奧運距離鐵人三項比賽會引起身體短暫的急性反應,也會造成肌肉損傷,但這些現象在賽後5天內皆會回復至正常值。 |
英文摘要 | The Olympic triathlon race included a 1.5-K swim, a 40-K bike-ride, and a 10-K run. Triathletes often felt muscle soreness after a triathlon race. This kind of muscle soreness is associated with damaged muscle cell. The mechanical stress is the main factor to induce muscle damage. Muscle damage cause myocellular protein release into the blood, such as creatine kinase (CK), myoglobin (Mb), and lactate dehydrogenase (LDH). Some studies also indicated that intense endurance muscular activity may cause prolific production of free radicals due to large oxygen consumption. Free radicals can damage muscle cell membrane, induces the formation of malondialdehyde (MDA). Purpose: To investigate the effect a triathlon race on the indices of muscle damage, MDA formation and hematological parameters. Methods: Ten male triathletes (age=27.1±4.1 yrs, height=170.8±5.4 cm, weight=69.1±6.0 kg) were studied before and after the 2001 Uni-President Cup Triathlon in Taiwan. The mean finish time was 2hrs 25±7 min. The blood samples were obtained 12 hrs before the race (Pre), immediately after the race (H0), 1 hour (H1), 24 (H24), 72 (H72), and 120 (H120) hours after the race. The blood samples were analysed for CK, Mb, LDH, hematological parameters and MDA concentrations. Values were corrected for the percentage change in plasma volume. Results: The Serum CK increased significantly (p<.05) at H24 and H72, as the serum Mb was significantly higher at H0 and H1 as compared to Pre. Serum LDH was significantly elevated at H0, H1, H24, and H72. The hematological parameters revealed that there is a acute inflammatory response, but no significant change in plasma MDA concentrations was found. Conclusion: A triathlon race may induce acute inflammation and muscle damage, but these indices will return to pre-values at H24 and H72. Compare pre-race with post-race values, no statistical difference in the lipid peroxidation index. Hence, a triathlon race does not lead to oxidative damage, and muscle damage is not due to the lipid peroxidation. In this study, a triathlon race may induce acute physiological stress and muscle damage, but these phenomenons will return to baseline in five days. |
本系統中英文摘要資訊取自各篇刊載內容。