The main purpose of study was to analyse the effect of ladder speed run and repeated sprint ability exercise in improving agility and speed. The research was conducted on 33 junior soccer players in Surabaya with age between 15 – 17 years old. There were three groups with 11 participants in each group: Group 1 was given treatment of ladder speed run, Group 2 repeated sprint ability, and Group 3 control group. Data was collected by testing of speed and agility using 30m sprint and Illinois agility test. Data was analysed using paired t-test and One Way Anova with α = 0,05. Results: There was a significant effect of ladder speed run exercise on speed and agility witht7.302>t 1.833 and t 7.872>t 1.883, respectively. In addition, there was a significant effect of repeated sprint ability on speed and agility with t7.934>t 1.833 and t8.693>t 1.833, respectively. There were significant differences between the three of groups in speed with t 6.281>t 3.35. Furthermore, there were significant difference between the three of groups in agility with t 3.473>t 3.35. Group 2 was better than Group 1 and Group 3 in increasing agility and speed. Conclusion: There was significant effect of ladder speed run and repeated sprintability in increasing agility and speed.
|Publication status||Published - 28 Mar 2017|