<![CDATA[This study to analyze the impact of the reactive agility sprint mirror drill exercise in the increasing the speed.. This research was done at UNIPA Surabaya by using a sample of soccer athletes in Unipa Surabaya by using the original pairing technique in determining the sample group. This type of quantitative research is the type of research that is suitable for testing the speed of reactive agility sprint mirror drill training by applying the quasi experimental design method. To measure the speed was taken by using the 30 m sprint test. The results of this study indicate that the Reactive Agility Sprint Mirror Drill training has a significant effect on speed, as indicated by the results of the normality test using the Kolmogorov Smirnov test pre and post velocity p = 0.723 (p> 0.05) and p = 0.166 (p> 0.05). ) and the homogeneity test used the Leavenes Test with the results of pre p = 0.131 (p> 0.05) and post p 0.146 (p> 0.05), while to determine the results of the T-test used paired sample test with dependent variables in the experimental group with numbers significance p = 0.003 (p <0.05), in other words it has an increase in effect, meaning that there is a significant effect, while the T-test results of the dependent variable in the control group obtained a significance number of p = 0.000 (p <0.05), the conclusion is increase effect. Kata Kunci: sepak bola, kecepatan, Reactive Agility Sprint Mirror Drill]]>
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