臺灣博碩士論文加值系統

本研究乃針對補充冬蟲夏草對非最大耐力運動中的能量利用及運動表現之影響進行探討。實驗採取交叉雙盲設計，受試者為10名未受運動訓練之健康男性大學生，隨機分成冬蟲夏草組與對照組，每日補充冬蟲夏草 (或安慰劑) 膠囊6顆，經30天補充後以固定式腳踏車進行耐力運動測試；前60分鐘為60﹪最大攝氧量之非最大耐力運動，60分鐘後每分鐘增加負荷0.25kp至受試者力竭為止，運動中抽取靜脈血並分析受試者呼出之氣體，比較血液中相關代謝物質濃度、呼吸生理數值及運動持續時間之變化。結果顯示，兩組於耐力運動中各時間點之血糖、血乳酸、游離脂肪酸、甘油、呼吸交換率、心跳率及運動表現均無顯著差異，然而冬蟲夏草組於60分鐘的耐力運動中，由脂質供給之能量較安慰劑組高出50.7﹪(110 kcal vs. 73 kcal)，且冬蟲夏草組在第40 分鐘之呼吸交換率即顯著低於20分鐘之值 (0.93 ± 0.06 vs. 0.97 ± 0.08 ) (P<.05)，而安慰劑組至60分鐘時才有顯著下降的現象 (0.94 ± 0.03 vs. 0.98 ± 0.07 ) (P<.05)，故可推論，冬蟲夏草的補充可使耐力運動進行時，能量來源提早由醣類轉向脂質，且有增加脂質供能之趨勢，但對耐力運動表現並無顯著影響。

關鍵詞：冬蟲夏草、呼吸交換率、游離脂肪酸、運動表現

The purpose of this study was to investigate the effects of Cordyceps sinensis (CS) supplementation on energy utilization and endurance performance. Experiment was in double-blind and cross-over designed. Ten untrained healthy college students were divided into CS group and P group by randomly assignment in study. They took 6 CS or placebo capsules (400 mg CS extract / capsule) per day for 30 days. After supplementation, all of the subjects took two-stage endurance performance test on the static ergometer. They first performed steady state exercise at the intensity of 60% VO2max for 60 min, then sprinted till exhaustive with increasing 0.25 kp per min. Venous blood and respiratory gas were collected and analyzed every 20 minutes during exercise. There were no significant difference in concentration of glucose、lactate、free fatty acid、glycerol、respiratory exchange ratio (RER)、heart rate and exercise performance between groups. However, the RER at ex-40 min was lower than ex-20 min in CS group (0.93 ± 0.06 vs. 0.97 ± 0.08) (P<0.05). The RER in P group did not decrease significantly untill ex-60 min (0.94 ± 0.03 vs. 0.98 ± 0.07 ) (P<0.05). Furthermore, total energy came from fat in CS group is 50.7﹪higher than in P group (110 kcal vs. 75kcal). We concluded that energy source would shift from carbohydrate to fat earlier and body tend to use fat as energy metabolic substrate in exercise after CS supplementation.

Key words: Cordyceps sinensis, respiratory exchange ratio, free fatty acid, exercise performance

目 錄

中文摘要--------------------------------------------------------- I
英文摘要--------------------------------------------------------- II
目錄-------------------------------------------------------------- III
表目錄------------------------------------------------------------ V
圖目錄------------------------------------------------------------ VI

第壹章 緒論----------------------------------------------- 1
一、 研究動機------------------------------------------ 1
二、 研究目的------------------------------------------ 2

第貳章 文獻探討------------------------------------------ 3
一、 冬蟲夏草簡介------------------------------------- 3
二、 耐力運動中之能量利用-------------------------- 5
三、 耐力運動中疲勞發生之原因--------------------- 7


第參章 材料與方法--------------------------------------- 10
一、 研究對象------------------------------------------ 10
二、 實驗設計------------------------------------------ 10
三、 實驗流程------------------------------------------ 11
四、 分析項目之方法與步驟-------------------------- 11
五、 統計分析------------------------------------------ 18

第肆章 實驗結果------------------------------------------ 19
一、 受試者基本資料---------------------------------- 19
二、 實驗期間飲食能量攝取狀況--------------------- 19
三、 補充冬蟲夏草對非最大耐力運動中生理表現之影響--------------------------------------------- 19
四、 補充冬蟲夏草對非最大耐力運動中生化數值之影響--------------------------------------------- 19
五、 補充冬蟲夏草對耐力運動表現之影響---------- 20


第伍章 討論----------------------------------------------- 26
一、 補充冬蟲夏草對耐力運動中能量利用之影響-- 26
二、 補充冬蟲夏草對最大攝氧量之影響------------- 28
三、 補充冬蟲夏草對運動表現之影響---------------- 29


第陸章 結論與建議--------------------------------------- 31


參考文獻--------------------------------------------------------- 33
附錄一 台糖冬蟲夏草之主要成分----------------------- 44
附錄二 受試者須知與受試者同意書--------------------- 46
附錄三 受試者各項分析之原始數據--------------------- 47

表 目 錄

表一 受試者基本資料---------------------------------- 21
表二 受試者平均每日營養攝取量比較---------------- 21
表三 補充冬蟲夏草對非最大耐力運動中呼吸生理表現之影響----------------------------------------- 22

圖 目 錄

圖一 補充冬蟲夏草對耐力運動中血糖變化之影響------ 28
圖二 補充冬蟲夏草對耐力運動中血乳酸變化之影響--- 28
圖三 補充冬蟲夏草對耐力運動中血漿甘油變化之影響 29
圖四 補充冬蟲夏草對耐力運動中血漿游離脂肪酸變化之影響--------------------------------------------------- 29
圖五 補充冬蟲夏草對耐力運動中心跳率變化之影響--- 30

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