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題名 | Lactate and Sports Pertormance=乳酸及運動 |
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作者 | 呂欣善; |
期刊 | 國立臺灣體專學報 |
出版日期 | 19950100 |
卷期 | 6 1995.01[民84.01] |
頁次 | 頁11-53 |
分類號 | 528.9012 |
語文 | eng |
關鍵詞 | 乳酸; 運動; |
中文摘要 | 本篇文獻回顧旨在探討乳酸在生理上所扮演色。血液乳酸廣泛地被認為是無氧代 謝之指標。 乳酸是 Embden-Meyerhof 路徑的最終產物。大部分乳酸( 50 %- 70 %)會 在肌肉組織中被氧化。乳酸在運動肌肉之濃度和 FT 及 ST 股纖維分佈有關。乳酸堆積是乳 酸製造量大於清除是之結果。乳酸代謝下只影響到醣解中之速率限制步驟,也會仰制脂肪細 胞中移出。肌力會隨著乳酸濃度的上升而下降。激發-收縮聯合也會被乳酸中所含氫離子所 抑制。 高強度運動後進行中強度運動可以經由血液循環及氧化酵素(如乳酸脫氫酵素)活性機轉促 進乳酸清除。從事冰上曲棍球這項間歇運動時在如每回下場後實施動態恢復可以加速降低乳 酸濃度。 本篇文獻探討中提出影響競技表現之生理參數,而利用運動訓練克服這些參數之弱點,可改 進運動成績。 |
英文摘要 | The prupose of this review article is to study the physiogical role of lactate and effect of lactate on sports performance. Blood lactate is widely accepted as indicator of anaerobic glycolytic metabolism. Lactate is the end product of the Embden-Meyerhof pathway. Most of lactate (50%-70%) is oxidixed by muscle tissue. Lactate concentration in exercising muscle is found in association with the FT and ST fiber distribution. Accumulation of lactate is evident when lactate production excesses the removal rate. Lactic acid not only influence several of the rate-limiting steps in the glycolytic process but it is also a potential inhibitor of fat mobilization from adipose tissue. Muscle strength linearly decreased as lactate levels increased, The E-C coupling was inhibited by concentrated hydrogen ion from lactic acid. A moderate exercise following intense physical effort may enhance lactate clearance by accelerated circulation and activated enzyme (e.g. lactate hydrogenase) . Performing intermittent exercise as ice hockey, active recovery between bout is recommended as to reduce lactate at a faster rate. After this review study, physiological parameters that influence athletic performance may determine weaknesses so that the athlete can modify the training program to correct the weaknesses. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。