ACUTE EFFECTS OF WHOLE-BODY VIBRATION ON JUMP FORCE AND JUMP RATE OF FORCE DEVELOPMENT: A COMPARATIVE STUDY OF DIFFERENT DEVICES

Bagheri, J, van den Berg-Emons, RJ, Pel, JJ, Horemans, HL, and Stam, HJ. Acute effects of whole-body vibration on jump force and jump rate of force development: A comparative study of different devices. J Strength Cond Res 26(3): 691-696, 2012-The goal of this study was to compare the acute effects of whole-body vibration (WBV) delivered by 3 devices with different mechanical behavior on jump force (JF) and jump rate of force development (JRFD). Twelve healthy persons (4 women and 8 men; age 30.5 +/- 8.8 years; height 178.6 +/- 7.3 cm; body mass 74.8 +/- 9.7 kg) were exposed to WBV for 15 and 40 seconds using 2 professional devices (power plate [PP; vertical vibration] and Galileo 2000 [GA; oscillatory motion around the horizontal axis in addition to vertical vibration]) and a home-use device [Power Maxx, PM; horizontal vibration]). The JF and JRFD were evaluated before, immediately after, and 5 minutes after WBV. The JF measured immediately after 40 seconds of vibration by the GA device was reduced (3%, p = 0.05), and JRFD measured after 5 minutes of rest after 40 seconds of vibration by the PM device was reduced (12%, p < 0.05) compared with the baseline value. The acute effects of WBV (15 or 40 seconds) on JF and JRFD were not significantly different among the 3 devices. In conclusion, our hypothesis that WBV devices with different mechanical behaviors would result in different acute effects on muscle performance was not confirmed.