臺灣博碩士論文加值系統

　　增強式運動是一種常見的訓練方式用來增加運動員的爆發力與運動表現，近年來，這種運動方式也常常被拿來作為傷後運動員在重返運動場之前的復健方式。本篇研究的目的是比較增強式運動之中的兩種跳箱訓練(跨越跳箱與跳上跳箱)以及探討不同跳躍速度下(每分鐘60下、75下與90下)對於強度與人體的影響。實驗的受試者是12名國立台灣體育運動大學田徑校隊的健康男性運動員。我們使用三維動作分析系統與兩塊測力板來收集在跳箱跳躍過程中的下肢運動學與動力學參數。結果顯示跳上跳箱的這種方式比跨越跳箱的方式在最大膝關節屈曲角度的時候有較多的髖關節與膝關節屈曲角度、較長的到達最大膝關節屈曲角度的時間以及能提供前十字韌帶較高的穩定度。在跳躍速度方面，每分鐘90下的速度能夠產生比較小的髖關節內收角度、膝關節外翻角度與較小的膝關節內/外翻力矩以及內/外旋力矩。

　　Plyometric exercise is widely used as a training program for competitive athletes to increase their explosive power and to improve their performance. Also, it is getting popular to be used as a therapeutic exercise for post-injured athletes to help them to return to sports. The purpose of this study was to compare two plyometric box jumps (cross the box and front the box) and to investigate the effect of different jumping speeds (60 bpm, 75 bpm and 90 bpm) toward the intensity and human body. Twelve healthy, male athletes were recruited from track and field team in National Taiwan University of Physical Education and Sport. Kinematics and kinetics data of lower extremities were collected via three-dimensional motion analysis system and two force plateforms during the box jumping tasks under three different rates. We found that front the box (FB) had more hip and knee flexion at the checkpoint of maximum knee flexion, more time to maximum keen flexion and better ACL stabilization than cross the box (CB). While 90 bpm had less hip adduction, knee valgus and knee valgus/varus moments as well as internal/external rotation moments. According to our finding, we suggest that FB and 90 bpm are more suitable to be included in the training protocol for post-injured athletes in the return to sport phase of rehabilitation.

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