Acute Effects of Whole-Body Vibration on Muscle Activity, Strength, and Power

Abstract

The purpose of this study was to investigate the effects of a single bout of whole-body vibration on isometric squat (IS) and countermovement jump (CMJ) performance. Nine moderately resistance-trained men were tested for peak force (PF) during the IS and jump height (JH) and peak power (PP) during the CMJ. Average integrated electromyography (IEMG) was measured from the vastus medialis, vastus lateralis, and biceps femoris muscles. Subjects performed the 2 treatment conditions, vibration or sham, in a randomized order. Subjects were tested for baseline performance variables in both the IS and CMJ, and were exposed to either a 30-second bout of whole-body vibration or sham intervention. Subjects were tested immediately following the vibration or sham treatment, as well as 5, 15, and 30 minutes posttreatment. Whole-body vibration resulted in a significantly higher (p < or = 0.05) JH during the CMJ immediately following vibration, as compared with the sham condition. No significant differences were observed in CMJ PP; PF during IS or IEMG of the vastus medialis, vastus lateralis, or biceps femoris during the CMJ; or IS between vibration and sham treatments. Whole-body vibration may be a potential warm-up procedure for increasing vertical JH. Future research is warranted addressing the influence of various protocols of whole-body vibration (i.e., duration, amplitude, frequency) on athletic performance.

Efeito agudo dos extensores do joelho unilateral na cadeira extensora com e sem estímulos na plataforma vibratória

“…Our study used vibrating intensity of 30Hz and amplitude of 4 to 6 mm based on most studies which used intensity of 20Hz to 50Hz and amplitude of 2.5 to 6mm [3][4][5][6][7][8][9][10][11][13][14][15][16][17][18][19][20][21][22][23] .…”

“…Torvinen et al 4 stated that a single vibrating power applied improves isometric force of knee extensors performance and vertical push in 3.2% and 2.5% respectively. Published studies reported the usage of vibrating platform as a means for training may cause potentiation or muscular fatigue [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and the effect is transitory and lasts no longer than 30 minutes 14 . However, most studies analyzed the usage of platform and compared variables before and after vibrating training.…”

To Compare the Effect of Vibration Therapy and Massage in Prevention of Delayed Onset Muscle Soreness (DOMS)

“…Many research scholar have shown that post exercise vibration [39,40] and massage [7,41,42] therapy have no significant impact on MIF restoration in case of eccentric exercise. Our result is in contrast with the result of some researches [12,26] who show significant difference in MVC in VT and non VT groups [12,26].…”

“…In present study, vibration therapy failed to show any significant difference in 1 RM restoration. Some studies are reported that vibration therapy was not effective in recovery of muscle strength [39,40].…”

Efeito da aplicação de vibração mecânica sobre a impulsão vertical

“…Frequências mais elevadas não geraram alterações significativas em nenhuma das técnicas de saltos estudadas. Corroborando com esses resultados, Cormie et al (2006) verificaram um aumento significativo na altura de SCM imediatamente após a aplicação da vibração em indivíduos na posição de meio agachamento. Nestes estudos foram utilizados diferentes protocolos de treinamento, fato que pode influenciar nos resultados do treinamento com vibrações (BAZETT-JONES et al, 2008).…”