本研究目的藉由人為操作自由度的方式（分別以三種不同姿勢），以射標靶得分數作為準確性的比較數據，並藉此模擬不同速度下對準確性之影響以。本研究以屏東師範學院體育學系學生共25人（男生15人，女生10人），其平均身高167.4±24.5cm，體重76.1±2.7kg，皆以使用慣用手參與實驗試作。以「飛鏢投擲裝置」為測量工具，測得每位實驗參與者準確率得分後，將所得實驗數據，以「重複量數單因子變異數分析」進行統計考驗，顯著水準訂為α=.05。本實驗藉由控制手臂自由度達到在不同速度下與準確性的差異，在本研考範圍內顯示以三種不同投擲飛鏢姿勢下的得分準確性並沒有顯著差弱（F=1.23，p>.05）。但在身體後方固定手肘度動作投擲時，所產生速度較快且其得分平均數顯示出較高於身體前方固定手肘呈90度動作與身體後方固定手肘90度動作的趨勢。 本研究設計上屬於基礎性實驗，建議以後學者能使用相關輔助器材如測速槍、量角器等..進行更深入的研究。

Controlling velocity and accuracy was a key point on successful skill performance. The purpose of the study that manipulated the degrees of freedom (three kinds different postures) were the independent variable and the performance outcome. The research subjects (N=25) are school students of the Department of Physical Education of the National Ping Tung with, average height of 167.4±24.5 cm and average weight of 76.1±2.7 kg, and they are required to participate in the experiment by using their habitually used hands. “Dart throwing devise” is used as measurement tool to measure each participant’s rate of accuracy scores, which are consequently statistically tested by “Repeated-measures One-Way ANOVA” with the significant level set atα=.05. Results shows that: The limitation of the study shows three kinds different postures got scores were not signification differences, but controlling more degrees of freedoms postures that got mean scores was better. The study belonged to a foundation research. To conduct further research, it was suggested that using a protractor, a speed gun et al..