本研究目的為探討青年女子壘球選手下肢無氧動力特性與專項跑壘速度表現之相關。以青年女子壘球選手16名為施測對象，平均年齡16.5±0.5歲，身高162.4±6.1公分，體重59.5±7.3公斤。利用Kistler彈跳測力板進行半蹲跳及原地反彈跳之下肢瞬發力檢測，再進行50公尺以及跑壘速度測驗，彈跳與衝刺測驗休息時間分別為10秒及60秒，每項測驗間休息十分鐘。結果以皮爾遜積差相關分析各參數之相關性，顯著水準定為α=.05。研究結果發現半蹲跳與反彈跳及50公尺衝刺與跑壘速度之相關，除反彈跳對二壘跑壘速度無顯著相關(-.454)，其他各項皆達顯著相關(-.503～-.907)。本研究結果顯示，下肢無氧動力對於壘球專項跑壘速度有顯著相關，無氧動力越佳，跑壘速度亦然。
The purpose of this study was to determine the relationship between lower-limb anaerobic power and base-running performance in youth softball player. Sixteen youth softball players participated in this study, with average ages 16.5±0.5 years, heights 162.4±6.1 cm and weights 59.5±7.3 kg. All subjects performed squat jump (SJ), counter movement jump (CMJ) on Kistler 9290 force platform, and 50 meters sprint, three kinds of base-running (one-base; two-base; four-base). Pearson Product-moment correlation analyses were conducted to determine the relationship between anaerobic power and base-running performance (α=.05). The results showed that SJ, CMJ height and 50 meters sprint time were significantly correlated with each base-running speed (-.503~-.907), but the CMJ height were not correlated with two-base running speed (r=-.454). The results of this study indicated the lower-limb anaerobic power is significantly correlated with base-running performance. Furthermore, the base-running skill is an important factor that influences the base-running speed.
