IRCT20180926041140N1 IRCT 2018-11-11 Tehran University of Medical Sciences The comparison of WBV and MET on flexibility and stiffness The comparison of immediate effects of Whole body vibration and muscle energy technique on hamstring muscle flexibility and stiffness in healthy young females. 2018-06-30 anticipated 56 Complete https://irct.ir/trial/34392 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization was performed using a Balanced Block method, in which we designed four blocks of available probabilities, so that in each block, two were from the MET group and two from the WBV group, and the number of possible probabilities was 6. Then, using Excel we created a list of numbers from 1 to 6 and arranged the blocks according to the list of numbers. N/A Hamstring tightness. Intervention 1: Intervention group: Muscle energy technique, controlled isometric contraction from the target muscle and then transfer the knee to the greater extension range. Intervention 2: Intervention group: Whole body vibration, vibrations with a frequency of 30 Hz and amplitude of 2 mm are applied through the platform to the whole body. No - There is not a plan to make this available Justification or reason for not sharing IPD is No more information