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題名:無線微機電感測器應用於網球開放式正拍上旋球之球拍振動分析
書刊名:華人運動生物力學期刊
作者:吳鴻志陳容舟王木良
作者(外文):Wu, Hung-chihChen, Jung-chouWang, Mu-liang
出版日期:2012
卷期:4:S2
頁次:頁150-154
主題關鍵詞:微機電加速規頻譜分析Micro electro mechanical systemsAccelerationSpectrum analysis
原始連結:連回原系統網址new window
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  • 被引用次數被引用次數:期刊(3) 博士論文(0) 專書(0) 專書論文(0)
  • 排除自我引用排除自我引用:3
  • 共同引用共同引用:7
  • 點閱點閱:24
目的:本研究探索運用無線微機電感測器,分析優秀和次優秀選手在網球開放式正拍上旋球的球拍振動差異。對象:受測優秀選手目前全國男子單打排名第9名;次優選手目前為全國排名賽會前賽選手。方法:將無線微機電感測器放在球拍上,內含有三軸加速規,取樣頻率為3333Hz,並搭配高速攝影機拍攝,當擊正拍上旋球時無線擷取運動學資料,並作統計分析。結果:(1)兩位選手個人在無配戴與有配戴感測器在球速方面,經比對t檢定後,無顯著差異。(2) 在球拍加速度頻譜振動頻率次數分佈中,優秀選手的Y、Z軸,均在高頻率有較多的振動現象,而次優秀選手卻無明顯振動。優秀選手的X軸,均有較無明顯振動,而次優秀選手卻在高頻率有明顯振動。(3)球拍振動時間經檢定後發現優秀與次優秀選手在X、Y、Z軸均有顯著差異(顯著差異α為0.05)。(4)在球拍加速度的時域分析,優秀選手在X、Y、Z軸最大和最小平均值與次優秀選手有顯著差異,得知優秀選手擊到球時,明顯集中於甜區,且揮拍速度較快,擊球力量較大。結論:(1)配戴感測器不會影響選手的表現。(2) 優秀選手擊到球時,明顯集中於甜區,且揮拍速度較快,擊球力量較大。(3)在振動時間中,優秀選手明顯時間高於次優秀選手,代表優秀選手在擊球時能夠緊握球拍至將整個正拍上旋球擊球動作完成,讓擊出的上旋球質較紮實穩定。(4)球拍時域資料,經F和t檢定後,發現在三軸的最大和最小平均值有顯著差異,所以優秀選手瞬間施力較大,且上旋球轉速較快,球質較穩定。
Purpose: This research explored the use of Wireless Micro Electro Mechanical Systems (MEMS) sensors to analysis the difference of tennis open forehand top spin. Subjects: The elite athlete is ranked number 9 of man single in Taiwan and the sub-elite is ranked the third of group in Taiwan. Methods: Underneath the racket is placed a wireless Micro Electro Mechanical Systems (MEMS) sensors which includes a tri-axis accelerometer. The sample is taken on the frequency of 3333Hz. When athletes strike forehand cut racket, sensors capture measuring point of numerical data, and statistical analysis. Results: 1. Two of the contestants not worn and wear sensors in ball speed, paired t testing, no significant differences. 2. Number of vibration frequency distribution in the Y, Z axes of the elite athlete, at high frequencies there are more vibration phenomena in the racket acceleration spectrum, while the sub-elite athlete, there was no vibration. The elite athlete of the X-axis, are less obvious vibration sub-elite athlete in the high frequency vibration. 3. From the test of racket vibration time, verification revealed that the elite athlete and the sub-elite have obviously difference. 4. The analysis of racket time zone, it indicates that athletes have obviously difference during the max and min average values on X, Y and Z axis. The result showed that the elite athlete hit the tennis obviously on the center of the racket,the striking speed was faster and the hitting power was stronger. Discussions: 1.Wear sensors will not affect the athletes’ performance. 2. The elite athlete hit the ball obviously focused on the sweet spot, and a faster swing speed, hitting power. 3. In the vibration time, it indicates that the elite athlete has longer period than the sub-elite. It means that the elite athletes are significantly better than the sub-elite. 4. From the time zone of the racket, the max and min average in tri-axis get obviously difference paired F and t test. The elite athlete gets more power in a flash hitting the speed of the top spin was faster and gets better control in striking.
期刊論文
1.范姜逸敏、張嘉雄(20051100)。大專網球課程正反拍抽球教學實務探討。淡江體育,8,12-20。new window  延伸查詢new window
2.林育田、謝麗娟、賴茂盛、何國龍(20051200)。網球拍偏心撞擊之運動力學分析。北體學報,13,123-138。new window  延伸查詢new window
3.許明彰(19960400)。網球的生物力學。大專體育,25,63-68。new window  延伸查詢new window
4.羅志勇、馬上鈞、馬上閔(20111200)。大學生網球正手拍上旋球技術教學之研究--以樹德科技大學為例。屏東教大運動科學學刊,7,63-73。new window  延伸查詢new window
5.Alam, F.、Chowdhury, H.、Moria, H.、Fuss, F.(2010)。A Comparative Study of Football Aerodynamics。Procedia Engineerdia,2(2),2443-2448。  new window
6.Baker, J. A.、John, A. W.、Wilson, B. D.(1978)。The effect of tennis racket stiffness and string tesion on ball velocity after impact。Research Quarterly for Exercise and Sport,49(3),255-259。  new window
會議論文
1.吳鴻志、郭哲軒、賴慶安(2011)。無線微機電感測器系統應用於網球雙手反拍上旋球動作分析。2011國際生物力學研討會暨台灣生物力學學會年會。  延伸查詢new window
2.吳鴻志、潘帝仁、賴慶安(2011)。無線微機電感測器系統應用於網球單手反拍下旋球回擊動作分析。2011國際生物力學研討會暨台灣生物力學學會年會。  延伸查詢new window
3.Ahmadi, A.、Rowlands, D. D.、James, D. A.(2006)。Investigating the translational and rotational motion of the swing using accelerometers for athlete skill assessment。IEEE SENSORS 2006, EXCO,(會議日期: 2006/10/22-25)。Daegu, Korea。  new window
學位論文
1.林姵伶(2011)。無線微機電感測器系統應用於網球正手拍上旋球回擊動作分析(碩士論文)。樹德科技大學。  延伸查詢new window
圖書
1.丸山熏(2001)。網球技術圖解。北京市:人民出版社。  延伸查詢new window
 
 
 
 
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