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研究生:周玄武
論文名稱:咖啡因攝取對高中棒球投手投球表現之影響:以臺北縣立秀峰高中為例
論文名稱(外文):The Effects of Caffeine Ingestion on Pitching Performance of Senior High School Baseball Pitchers:Take Sioufong Senior High School in Taipei County for Example
指導教授:謝伸裕謝伸裕引用關係
指導教授(外文):Shen-Yu Hsieh
學位類別:碩士
校院名稱:國立臺灣師範大學
系所名稱:體育學系
學門:教育學門
學類:專業科目教育學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:55
中文關鍵詞:棒球投手咖啡因肌電圖
外文關鍵詞:baseball pitchercaffeineelectromyography(EMG)
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目的:本研究的目的是探討臺灣高中棒球投手攝取咖啡因,對於肌肉肌電表現、投球速度、準度及運動自覺程度(rating of perceived exertion, RPE)的影響。方法:受試者為10位現任正規高中棒球投手(年齡:16.7±1歲、身高:174.3±4.3公分、體重:72.5±7.3公斤、投手球齡:2.8±1.3年),採重複量數的雙盲實驗設計,以平衡次序原則分別攝取5mg/kg的咖啡因或安慰劑,60分鐘後進行20顆正常投球施測,兩次測驗間之排空期為一星期。以重複量數t考驗(t-test)分析四種變項:肌電、速度、準度及本體自覺程度(RPE)的影響,顯著水準為p<.05。結果:肱三頭肌肌電表現:咖啡因組(0.45V)與安慰劑組(0.42V);屈腕肌肌電表現:咖啡因組(0.23V)、安慰劑組(0.23);投球速度:咖啡因組(116.4km/hr)、安慰劑組(113.9km/hr);投球準度:咖啡因組(23.6%)、安慰劑組(28%);RPE值:咖啡因組(13.5)、安慰劑組(14.1),以上施測結果皆無顯著差異。結論:咖啡因攝取對臺灣高中棒球投手投球表現不會有顯著影響,本研究因只測量為大約20球(平均一局之投球數),只能探討知咖啡因攝取對於出場短暫投球量較低之投手無顯著影響,但對於投球時間較長與量較高之投手仍待進步之研究。
Purpose:To investigate the effects of caffeine ingestion on high school baseball pitchers’ muscle action potential, pitching speed, accuracy and rating of perceived exertion(RPE)in Taiwan. Methods:Subjects were 10 high school baseball pitchers.(age:16.7±1 yr, height:174.3±4.3 cm, weight:72.5±7.3 kg, years of pitching:2.8±1.3 yr), A double-blind repeated-measures design was used for the experiment. The testing order was counter-balanced. Placebo or caffeine (5mg/kg) capsules were ingested 60 minutes before 20 pitching tests with a 7-day washout period between tests. The effects of treatment were evaluated using a repeated-measures t-test to compare:muscle action potential, pitching speed, accuracy and RPE. A p values of less than .05 were considered to be statistically significant. Results:Muscle action potential of triceps:caffeine (0.45V), placebo (0.42V);muscle action potential of wrist flexor:caffeine (0.23V), placebo (0.23V);pitching speed:caffeine (116.4km/hr), placebo (113.9km/hr);pitching accuracy:caffeine (23.6%), placebo (28%);RPE:ingested caffeine (13.5), ingested placebo (14.1), the results of all the above tests were no significantly difference between groups. Conclusion:The effects of caffeine ingestion on pitching performance of senior high school baseball pitchers in Taiwan was no significantly different. The pitching number is about 20 pitches (the average pitching number of one inning). We can only infer that the caffeine consumption doesn`t have significantly influence on whose pitching number is lower than average. But for those whose pitching number is larger than average, we still need to go for further research.
前序部分
口試委員與系主任簽字證書.................................................i
授權書...................................................................ii
中文摘要.................................................................iii
英文摘要.................................................................iv
謝誌.....................................................................v
目次.....................................................................vi
表次....................................................................viii
圖次.....................................................................ix

本文部分
第壹章 緒論
第一節 研究背景.....................................................1
第二節 研究目的.....................................................3
第三節 研究假設.....................................................4
第四節 名詞操作性定義...............................................4
第貳章 相關文獻探討
第一節 棒球投手投球運動模式之探討...................................6
第二節 肌電圖的理論與應用...........................................18
第三節 咖啡因攝取對運動表現之影響...................................20
第參章 方法
第一節 研究對象.....................................................25
第二節 實驗流程.....................................................26
第三節 實驗場地佈置.................................................29
第四節 資料處理與統計方法...........................................29
第肆章 結果
第一節 咖啡因與投球表面肌電圖.......................................30
第二節 咖啡因與投球球速.............................................31
第三節 咖啡因與投球準確度(好球率)表現.............................31
第四節 咖啡因與投球後運動自覺努力程度...............................32
第伍章 討論
第一節 咖啡因對於肌肉肌電的影響.....................................34
第二節 咖啡因對於投手投球球速的影響.................................36
第三節 咖啡因對於投手投球準度(好球率)的影響.......................38
第四節 咖啡因對於投手投球後運動自覺努力程度的影響..................39
第五節 結論與未來研究方向..........................................39
引用文獻................................................................41
附錄
附件一 受試者告知同意書............................................46
附件二 健康情況調查表..............................................47
附件三 原始資料....................................................48
(一)投球肌電表現數據
(二)投球球速數據
(三)投球準度數據
(四)投球自覺努力程度數據

後篇部分
個人小傳................................................................55
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