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無線微機電感測器應用於五人制足球定點腳背射門動作分析

Wireless MEMS Sensors Applied To Analysis on Futsal Fixed Instep Shot

摘要


目的:在比較五人制足球十公尺定點腳背射門動作中,優秀與次優秀選手間的差異性,探討的有球速、足加速度、人體下肢段加速度運動學參數關係。方法:受試對象以國中優秀與次優秀選手各一名,慣用腳皆為右腳。利用無線微機電感測器,內含三軸加速規。實驗時在受試者的右踝、右膝、左踝、左膝、右腰各配戴1個感測器,擷取優秀選手與次優秀選手在定點腳背射門時相關之運動參數。結果:1.優秀和次優秀選手在個人球速上配戴和未配戴感測器無顯著差異(顯定水準α為0.05);2.優秀與次優秀選手之間在球速上無論是否配帶感測器皆達顯著差異;3.優秀與次優秀選手在踢球時間上有顯著差異;4.優秀與次優秀選手在身體下肢段三軸加速度上,經檢定後右踝、右膝、左踝和左膝的合力均達顯著差異。結論:1.配戴感測器不會影響選手的射門球速表現;2.踢球的時間優秀選手大於次優秀選手;3.選手配戴感測器踢球時間之差異比較,達顯著差異,在優秀選手的最小值中,代表前後擺腿方向移動的X和Z軸,位移比次優秀手較大,使得踢球時間較長。4.下肢段三軸加速度的比較,五個肢段點的二十個比較值當中,十四個有明顯差異,顯示優秀選手與次優秀選 手在十公尺射門時,動作是有明顯的不同。

並列摘要


Purpose: Compare futsal ten meters designated instep shot action, the difference between the elite and sub-elite athletes, explore ball speed, Kicker time with the ball velocity Relations, human lower limb segment acceleration kinematic parameters of the relationship. Method: The Subjects each an elite and sub-elite. The idiomatic feet are right foot. Using wireless Micro Electro Mechanical systems (MEMS) sensors includes tri-axial accelerometers. Experiment when the subject's right ankle, right knee, left ankle, left knee, The right side of the waist, each wearing a sensor to retrieve the motion parameters associated with the elite and the sub-elite at designated instep shot. Results: 1. The elite and sub-elite athletes in the individual ball velocity wear and not to wear sensors no significant differences (significant given the level of 0.05); 2. The elite and sub-elite on the ball velocity whether or not equipped with sensors are significant differences; 3. The elite and sub-elite to kick the ball at time is has significant difference in the time; 4. The elite and sub-elite athletes in the body the lower extremities paragraph tri-axial acceleration certificated after right ankle, right knee, left ankle and left knee joint force reached a significant difference. Conclusion: 1. Wear sensors will not affect the players shot the ball speed performance; 2. Good players kick the ball time is greater than the sub-elite athletes; 3. Players to wear sensors Kicker time differences, the two between significant difference before and after, represents the minimum value of the elite athletes kick moved in the direction X and Z axes, the displacement is larger than the plays excellent hand, so that the kicker time longer. 4. Comparison of the lower limb segment tri-axial accelerometer, the five limb segment twenty comparison value which, fourteen significant difference, the elite and sub-elite athletes in the 10 meter instep shot action, action is obvious different.

參考文獻


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