Publication:

五人制足球精準腳背射門之生物力學分析

本研究的主要目的是分析女子足球選手在四個不同目標區域下執行精準腳背射門之生物力學參數，並針對運動學及動力學的部分進行探討。本研究的受試者為12名國家級女子代表隊選手，受試者會在動作分析實驗室以腳背射門的方式將五人制足球射進球門中的四個不同目標區域，分別為左上目標區域、右上目標區域、左下目標區域、右下目標區域，透過三維動作分析系統與兩塊測力板來進行資料的收集，並將所收集之數據資料以重複量數單因子變異數分析及LSD事後比較法進行統計分析(p ≦ .05)。結果顯示，運動學部分發現四個目標區域在球速、踢球腳髖關節活動範圍、支撐腳膝關節活動範圍、踢球腳髖關節最大角速度與身體重心位移程度皆有達到顯著差異，然而在動力學部分，四個不同目標區域的膝關節最大力量、髖關節最大力矩及踝關節最大力矩上也有達到顯著差異。本研究結果顯示出選手在要求準確射門的情況下，射門時的身體動作的確會因為目標區域的改變而有所不同，而這樣的差異性正好可以作為教練或選手在射門動作上的指標依據，並可以根據選手個人射門動作的差異來做調整，以達到提高射門準確性的目的性。

The purpose of this study was to investigate the biomechanical parameters of instep kicking towards specific targets of the goal in Futsal. Twelve females from national soccer team in Taiwan were recruited in this study. Each subject was asked to perform instep kick of a stationary ball (size 4) toward top and bottom target on the right and left sides of the goal in Futsal. VICON motion analysis system and Kistler force platform were used to collect the kinematics of the lower limb and the ground reaction forces and moments, respectively. The results showed that the ball velocity, the range of hip motion on swinging leg, the range of knee motion on supporting leg, the peck angular velocity of hip joint on swinging leg and the center of mass were found significantly difference in four targets. In addition, the knee joint force, the hip joint and the ankle joint moment of supporting leg were found significantly difference in four targets. According to the results of this study, we found the body motion changed in different targets of accurate instep kicking. It could be provided training guidelines for coaches and players, and the kicking movement could be adjusted by personal for increasing accuracy.