在排球運動中攔網扮演著重要的防守角色，優秀的攔網能力不但可以阻擋對方的進 攻，更可為己方獲得得分的機會。目的：本研究目的為探討球員經歷 6 週敏捷訓練，其攔 網整體反應時間之變化。方法：以 7 名大專男子甲組排球選手為研究對象，研究中利用低 欄架進行敏捷能力訓練，並以自製系統記錄攔網整體反應時間。統計方法採用相依樣本變 異數分析與 Tukey HSD 法進行事後比較。結果：經研究顯示三個位置之攔網整體反應時間 經 6 週訓練後達顯著差異（p< .05）；訓練 4 週後平均攔網整體反應時間即出現顯著差異 （p< .05），且 4、5、6 週間無顯著差異。其中平均攔網整體反應時間由前測的 2.05 秒提 升至 1.88 秒。結論：本研究結果發現，在訓練中進行低欄架敏捷能力訓練，有助於在數週 內顯著提升攔網整體反應時間。

Blocking plays an important role for defense in the volleyball competition. Player’s excellent skill of blocking prevents the attacks from the opposite team and gets scores as well. The goal of this study was to examine the effects of six-week agility training in preseason on total response time (TRT) for blocking. Seven professional male volleyball players were involved in this study, implemented the agility training by using step hurdle and their TRTs of blocking were recorded by using our self-designed system. One-way repeat measure ANOVA and Tukey HSD method were applied to statistically analyze the experimental results. We showed that there were significant differences among the blocking TRTs after six-week training program (p< .05). Significant difference of the TRTs was first observed when the players underwent four-week training (p< .05) and continued to the complement of the six-week training program. There was no difference among the TRTs of the last 3 weeks. The average TRT was improved from 2.05 sec to 1.88 sec. In conclusion, our study demonstrated that the agility training by using step hurdle in preseason can significantly improve the block TRT and should be applied on the regular volleyball practice.