Acute improvements in jump ability in young recreational sportmen after a whole body vibration training

Abstract

The whole body vibrations (WBV) it is no#wadays one of the most widely used methodsfor improving the explosive strength. In thisstudy, 10 subjects participating in recreationalphysical activity were allocated to a 5 sets of 60s training, using a frequency of 30 Hz, an am#plitude of 2 mm and a isometric position (110 °bending knees) on a Galileo Fitness ® (Novo#tech, Germany) platform. The results showedan increase in SJ (+1.85 ± 3.85 cm) and CMJ(+1.22 ± 3.35 cm) in the post#test conductedjust after the vibration. The values of the post#test performed 30 minutes after the squat jumpremained above the ones of pre#test but justbelow the ones of the immediate post#test(+0.51 ± 4.37 cm). By contrast the values in thecounter movement jump drop below the pre#test ones (#0.15 ± 2.36 cm). Based on thesedata it seems that when the frequency is nothigh it is necessary to use a greater amplitudein order to achieve the desired effects. The ef#fect achieved after the vibration is transient, notremaining after 30 min.