Influence of Whole Body Vibration on Delayed Onset of Mmuscle Soreness Induced by Eccentric Exercise

Objective:To study the effect of whole body vibration training on DOMS prevention before doing eccentric exercises. Methods :30 Professional Sanda athletes were randomly divided into the whole body vibration training group(n=15)and control group(n=15). Subjects:6 groups of 10 maximum speed(60 °/s)eccentric with dominant leg knee extensor contraction. For the whole body vibration training group,training was performed on the vibrating platform,25 Hz,5 mm peak,with knee buckling 100° for 60 seconds before the eccentric exercise. For the control group there was no vibration training. Results:The data of muscle soreness,thigh,pressure pain threshold on the first to fouth day,the seventh day and the 14thday after the training were recorded. The serum creatine kinase was measured before and a day,2days and 7days after the training. Compared with the control group,the training group revealed lower levels of creatine kinase,pressure pain threshold,less muscle soreness and DOMS symptoms decrease(P0.05). However,the training had no noticeable effect on thigh circumference. Conclusion:Before the eccentric exercise,whole body vibration training can possibly reduce DOMS by improving muscle function. However further studies are needed to determine the effect of whole body vibration training on athletes ' DOMS.