本研究主要目的是探討手球選手塗抹手球球膠狀態對於墊步射門球速、命中率及射門動作的影響。使用雷達測速槍測量10名大專男子甲組手球選手在7公尺罰球線進行墊步射門的球速，同時記錄球門左上角、正中及右上角標靶射門的命中率，並以三度空間電磁場動作分析系統收集及分析在有無塗球膠時射門動作資料。以二因子重複量數變異數分析，瞭解有無塗抹球膠及對三處標靶所產生的差異。研究結果顯示，大專男子甲組手球選手在塗抹球膠後，墊步射門球速明顯增快、命中率顯著下降、肩關節最大外轉瞬間角速度明顯增快、軀幹最大彎曲瞬間角速度皆有明顯增快，前導腳髖關節最大彎曲角度明顯增大。此外，命中率及腕關節最大彎曲瞬間角速度在三處標靶之間有顯著不同。本研究結論：大專男子甲組手球選手塗抹球膠後，射門動作有所改變且有助於提升墊步射門球速，但可能導致命中率下降。建議手球選手加強訓練塗抹球膠射門的控制力，以同時提升射門球速與命中率。

The purpose of this study was to investigate the effects of using ball resin on handball throwing performance (ball speed, throwing accuracy, and movements). In this study, ten male handball players were recruited from Division I of the college handball teams. Each player performed a cross-over step throw from a distance of 7 meters to hit 3 goal targets (center, left upper corner, and right upper corner). Throwing accuracy for each target was determined by the scoring rate of each target. Ball speed was recorded with a sports radar gun, while throwing movements were recorded using a 3D electromagnetic motion analysis system. Two-way analysis of variance (ANOVA) with repeated measures was used for data analysis. The results showed that ball velocity was significantly increased with ball resin; however, throwing accuracy was significantly decreased when throwing with ball resin. While throwing with ball resin, we found increased maximum shoulder external rotation velocity, maximum trunk flexion velocity, and maximum hip flexion angle of the lead leg. Furthermore, scoring rate and the maximum velocity of wrist flexion were significantly different among the 3 goal targets. In conclusion, throwing with ball resin may affect throwing movements and increase ball speed, while throwing accuracy may be decreased. Handball players should use ball resin during daily training to improve their ball control ability for increasing both shooting velocity and accuracy at the same time.