目的：本研究之目的在於探討少棒選手垂直跳參數與跑壘表現之相關，並比較不同年齡的少棒選手垂直跳、衝刺、跑壘表現以及跑壘效率之差異。方法：招募志願參與本研究之國小四至六年級少棒選手28名，透過測力板進行反向跳與蹲踞跳，收取垂直跳的地面反作用力訊號，進行21.34公尺和42.67公尺直線衝刺及跑壘時間的測驗收取跑壘表現參數。以皮爾森積差相關進行相關性分析。使用單因子變異數分析比較不同年級間的差異，如達顯著使用Bonferroni法進行事後比較。結果：反向跳跳躍高度、推蹬峰值力量、推蹬峰值功率、修正式反應力指數以及蹲踞跳跳躍高度、推蹬峰值力量、推蹬峰值功率與直線衝刺時間達顯著相關 (p < .05)。反向跳跳躍高度、推蹬峰值力量、推蹬峰值功率、反應力指數以及蹲踞跳跳躍高度、推蹬峰值力量、推蹬峰值功率與跑壘時間皆達顯著相關 (p < .05)。沒有任何參數與跑壘效率有關。六年級的蹲踞跳峰值功率顯著比四年級高，其餘垂直跳參數不同年級間沒有差異。六年級的衝刺與跑壘速度顯著較快。結論：少棒選手衝刺與跑壘會受到發展成熟而有較好表現，且衝刺與跑壘的能力和垂直跳向心動作推蹬能力有關。建議少棒教練在訓練少棒選手更快的跑壘表現時，可以增強其向地面推蹬的力量與技術，並且適時加入快速反向動作訓練來刺激伸張收縮循環的機制，可以增強其向地面推蹬的力量與技術。

Purpose: This study investigated the correlation between vertical jump parameters and base running performance of youth baseball players, and compared the differences in vertical jump, sprinting, base running performance, and base running efficiency among youth baseball players of different grades. Method: Twenty-eight youth baseball players in grades 4 to 6 were recruited to participate in this study. The ground reaction force signals of countermovement jump and squat jump were collected via the force platform, and the base running performance parameters were collected from the tests of the 21.34 meters and 42.67 meters straight-line sprints and the base running times. Correlation analysis was performed using Pearson's correlation. The differences between grades were compared by one-way analysis of variance (ANOVA). Results: Jump height, peak force, peak power, and modified reactivity strength index of countermovement jump and jump height, peak force, peak power of squat jump were significantly correlated with straight-line sprinting (p < .05). Jump height, peak force, peak power, and modified reactivity strength index of countermovement jump and jump height, peak force, peak power of squat jump were all significantly correlated with base running time (p < .05). No parameter was correlated with base running efficiency. Peak power of squat jump of grade six players was significantly higher than grade four. Other vertical jump parameters were not different between grades. The speed of base running of grade six was faster. Conclusion: The performance of sprint and base running in youth baseball players will be enhanced by developmental maturity. The ability to sprint and base running will be related to the ability to push the pedal in the vertical jump centripetal maneuver. It is suggested that youth baseball coaches work on the strength and technique of pushing to the ground when training youth baseball players to run the bases faster. Appropriately incorporation of rapid countermovement training to stimulate the mechanism of the stretch-shortening cycle could enhance the strength and technique of propulsion.

摘 要 II
ABSTRACT III
誌謝 V
目次 VI
表次 VIII
圖次 IX
第壹章 緒論 1
第一節 研究背景 1
第二節 研究目的 3
第三節 研究範圍與限制 3
第四節 名詞操作型定義 4
第貳章 文獻探討 6
第一節 下肢爆發力與運動表現 6
第二節 跑壘表現探討 8
第三節 下肢爆發力對跑壘表現的重要性 9
第四節 力量、速度與敏捷的發展 11
第五節 總結 12
第參章 研究方法 13
第一節 研究對象 13
第二節 研究工具 13
第三節 實驗場地與儀器架設 15
第四節 實驗流程 17
第五節 資料處理 18
第六節 統計分析 21
第肆章 結果 22
第一節 受試者基本資料 22
第二節 垂直跳與直線衝刺表現之相關 25
第三節 垂直跳與壘間跑壘表現之相關 27
第四節 不同年級間垂直跳表現差異 29
第五節 不同年級間直線衝刺表現差異 31
第六節 不同年級間壘間跑壘表現與跑壘效率差異 33
第伍章 討論與結論 35
第一節 垂直跳與直線衝刺 35
第二節 垂直跳與與壘間跑壘和跑壘效率 36
第三節 不同年級之垂直跳表現 37
第四節 不同年級之衝刺與跑壘表現 37
第五節 結論與建議 39
參考文獻 40
附錄　研究倫理審查通過證明 48

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