The vibration platform located in a quiet room with the environment set up for variable measurements. Subject was transferred to the room via wheelchair to avoid any fatigue prior to the testing. All participants underwent a series of outcome measurements in the order of AROM and PROM for knee joints, Pendulum test, MAS, TUG, 6MWT. Variables measured before the intervention (Time1) were the baseline scores. These measurements were administered again immediately after 8-week intervention (Time2), 1 day after (Time3), and 3 days after (Time4) the 8-week period. The test-retest reliability for each variable was evaluated from two consecutive days before intervention with ten children with spastic cerebral palsy, aged 9.7 (1.7) years. Change scores (Diff2-1/Diff3-1/Diff4-1) were used to show the improvement of each dependent variable measured in time 2, 3 and 4 compared to the baseline. The duration of each assessment was about 45 min.