本研究旨在分析比較不同跳躍型態表現與身體素質之特性，其主要目的為探討排球單、雙腳跳躍型態在跳躍高度、作用時間、動力學參數和身體素質差異情形。本研究以16名大專公開一級男子排球選手為研究對象，分別以動力學測驗和專項體能測驗兩大部分進行。動力學測驗以KISTLER測力板擷取單腳組與雙腳組參與者之作用時間及地面反作用力值，並運用公式推算跳躍高度；專項體能測驗以六項排球專項體能作為身體素質依據。測驗所得之參數以SPSS for window 17.0版統計軟體進行分析，以獨立樣本T考驗檢定兩種不同跳躍型態之表現及身體素質之差異，統計水準定為p<0.05。經資料處理與結果分析討論之後，獲得下列研究發現：一、單腳跳躍（0.33秒）起跳時間快於雙腳跳躍（0.42秒），但因地面反作用力小於雙腳跳躍（單腳：2.89倍體重；雙腳：3.29倍體重），導致衝量小於雙腳跳躍，跳躍高度亦低於雙腳跳躍（單腳：0.33公尺；雙腳：0.43公尺），而最大地面反作用力出現時間亦較早（單腳：0.19秒；雙腳：0.29秒）。二、於兩組之身體素質比較發現單腳組（6.43秒）在9公尺折返跑顯著快於雙腳組（7.10秒，t=2.942, p <.05），其他五項測驗則皆未達顯著，顯示單腳跳躍技術更須具備較優秀之短距速度及敏捷協調能力。

　　The study is to compare the performance and physical quality of different jumping style, and to discuss the height of jumping, reaction time, and kinetics parameter, and also the physical quality differences between different jumping style of volleyball players, one-foot jump and two-foot jump. The experiment takes sixteen UVL Open group first level male volleyball players as participants. The kinetics parameter was experimented with Kistler’s force plate to capture one-foot and two-foot group participants’ reaction time and ground counterforce value, and used formula to calculate their height of jumping. Specialized physical fitness experiments all participants with six specialized volleyball physical fitness, and take the collected data as basis of physical quality, and was analyzed with SPSS for windows 17.0. The data of performance and physical quality of different jumping styles were tested with Independent- sample T test, and the statistical standard is p<0.05. The results are as follow: The take off time of one-foot jump (0.33 sec)is faster than two-foot jump(0.42 sec), but its ground counterforce is smaller than two-foot jump(one-foot: 2.89 times of weight; two-foot: 3.29 times of weight), so as the impulse, and the height of two-foot jump(one-foot: 0.33m; two-foot: 0.43m). The Maximum ground counterforce also performs earlier(one-foot: 0.19sec; two-foot: 0.29sec). The one-foot jump group (6.43sec)is only significantly faster than two-foot jump group (7.10sec, t=2.942, p <.05)in 9 meters shuttle run, and the rest tests are not significant between two groups. Result shows that one-foot jump techniques may more ability in speed, agility and coordination capacity then two-foot jump techniques.