五人制與十一人制足球足背側凌空射門動作的運動學比較

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Title:	五人制與十一人制足球足背側凌空射門動作的運動學比較
Authors:	蔡尚明張昭盛
Contributors:	體育系
Keywords:	足球運動學足球射門
Date:	2010-06
Issue Date:	2012-10-08 15:18:11 (UTC+8)
Abstract:	本研究主要目的在比較足球選手踢五人制與十一人制足球時以足背側凌空射門動作的差異性，探討球速、足速度、足速度與球速比值等人體下肢段運動學參數。以國家足球青年代表隊運動員5名（平均年齡為16.5±0.5歲、身高174.15±5.79公分、體重65.82±9.46公斤）為受試對象，設計三種不同踢球點高度位置（地板球位置、1/2膝關節高度踢球點位置與膝關節高度踢球點位置），執行足背側凌空射門動作踢球。實驗儀器以兩部Redlake高速攝影機(250Hz)同步擷取足球選手執行側凌空射門動作踢兩種不同球體之人體下肢段運動學參數。運動學參數透過攝影機拍攝，影片以Kwon 3D動作分析軟體進行三度空間直接線性轉換(3D-DLT)，得到球速、足速度、足速度與球速比值等參數。在運動學參數比較方面，採用SPSS 12.0統計軟體，以相依樣本t考驗檢定，五人制足球與十一人制足球對人體射門動作參數影響的差異水準，亦以重複量數單因子變異數分析比較不同踢球點高度位置的人體運動學參數是否達到顯著差異，若有顯著差異(P<.05)，則以LSD法考驗其事後比較。本實驗顯著水準訂為α=.05。本實驗結果發現：五人制足球與十一人制足球的各項運動學參數表現均無明顯差異，或許是五人制足球球體小，重量較重，而十一人制足球球體很大而重量輕，所造成的的一種互補現象。結果也驗證了，在球場上欲求威力大的射門，應以低位置的踢球點為佳。建議後續研究者，可繼續往這方面作探討。 The purpose of this study was comparing that soccer players were kicking the different balls (Futsal ball and normal soccer ball) by instep side-volley shot. Ball velocity, foot velocity, their ratios, and the other kinematics parameters of human low limbs had been compared. Those parameters administered to athletes in choosing soccer shot skills on competitions. Twelve junior amateur, male soccer players (age 16.5±0.5 yrs; height=174.15±5.79 cm; weight=65.82±9.46 kg) participated in this study. We designed three kinds of ball height (the floor kicking position, 1/2 knee height kicking position, knee height kicking position), and asked for athletes kicking. Two high-speed video cameras (Redlake) were used to sample the kicking motion at the same time (250 Hz), and the low limbs' performances on three kind of kicking positions were collected. We used the Kwon 3D motion analyze system to got the kinematics by 3D-DLT. The difference between the biomechanical parameters with kicking Futsal ball and normal soccer ball performed at three kinds of ball heights were analyzed by using LSD of repeat measure one-way ANOVA. The level of significance was set at 0.05. The results as follows: Those parameters were very similar. Because Futsal ball is smaller than normal soccer ball, but heavier than normal soccer ball. It might be showing a kind of complementary phenomenon. And the results also show that in order to get powerful shots, kicking in lower positions will be the best choices.
Relation:	文化體育學刊 (10期) ：p1 -7
Appears in Collections:	[Department of Physical Education] Journal

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