不同海拔高度半程馬拉松比賽血液生化值之研究

本研究目的在探討不同海拔高度半程馬拉松運動及血液生化值變化情形，以提供教練及選手運動訓練調整之依據。本研究是以台中市大腳ㄚ慢跑俱樂部12男生為研究對象，分別參加高地（3180公尺）及平地共兩場半程馬拉松比賽，其平均身高167.8±5.6公分、體重62.2±6.4公斤、年齡41.8±9.2歲。於賽前1小時、賽後3-5分鐘抽血觀察血液生化值之變化情形。以相依樣本t考驗分析，兩場半程馬拉松比賽之成績與血液生化值前後測其差異性，顯著水準設在α=.05。記錄不同海拔高度半程馬拉松運動期間之血液生化值LDH、CK，以百分比方式表示%=【（後測-前測）/前測】×100，並以相依樣本t考驗（paired t-test）比較不同海拔高度半程馬拉松的血液生化值。獲致結果得知肌肉損傷指標之CK、LDH：高地訓練強度較平地低，細胞膜通透性減少，身體氧自由基產生幅度較小，導致半程馬拉松，LDH活性增加比平地組少，但是CK沒有顯著差異。所以，CK的變化要在48小時以後才產生，因此，不能當作賽後即刻肌肉損傷監測指標，而LDH可以當作賽後即刻肌肉損傷監測指標。由以上總結，高地組受到高地環境缺氧的影響，使運動能力下降，導致運動成績表現、LDH數值比平地組低。

關鍵字

半程馬拉松；肌酸激酶；乳酸脫氫酶

並列摘要

The purpose of this study was to investigate the changes of muscle damage index during half marathon (21km) run at high altitude and sea level (3180 m and 280 m, respectively). 12 well-trained runners (age of 41.8±9.2 yr, height of 167.8±5.6 cm and weight of 62.2±6.4 kg) were recruited for this study. Blood samples were collected at 1 hour before and immediately after competition. Creatine-kinase (CK) and lactate dehydrase (LDH) activity were measured by KODAK 500. Using paired t-test for comparing before and after exercise on CK and LDH activities at different altitudes by SPSS. The result demonstrated that time for completing halfmarathon running 【122.1±15.9 min (2.9±0.4 m/sec) vs.98.3±11.4 min (3.6±0.4 m/sec)】 was no significant difference in two races. No statistically significant differences were observed in CK activity between two races (29.9±9.9% vs. 46.4±42.8%). However, LDH activities were significantly increased in sea level race (8.3±5.7% vs. 39.3±14.4%). Studies have shown that high altitude-induced hypoxia would promote muscle damage. But in present study, we did not observed the significant difference on muscle damage between high altitude and sea level. This may be subjects not adaptated to the environment well.

並列關鍵字

half-marathon ； CK ； LDH

參考文獻

https://www.worldcat.org/title/biochemistry/oclc/936633737&referer=brief_results

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不同海拔高度半程馬拉松比賽血液生化值之研究

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