Short-term effects of different whole body vibration frequencies on the shallow drop jump in sprinter

Chen, W.-C.; Huang, M.-Y.; Shiang, Tzyy Yuang

doi:10.1016/s0021-9290(06)85332-7

Cited by 1 publication

(2 citation statements)

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“…Chen et al (7) stated that in drop jump that they applied to 13Hz and 50Hz groups after whole body static squat that was in 3mm amplitude and the knees' angle was 150 0 , both groups reached to peak jump height in 4 th jump. After whole body vibration that we applied, the one that is the closest to peak jump values which we gained in DJ movement is seen as 40Hz group.…”

Section: Discussionmentioning

confidence: 99%

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The effects of vibration frequency variation on volleyball players’ drop jump ability and postural control performance

Kırkaya¹,

Simsek²,

Ertan³

2015

Turk J Sport Exe

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The aim of the performed study is to present the acute effect of the whole body vibration (WBV) stimuli on drop jump (DJ) and postural control performance. 13 athletes who play in Turkish Women Volleyball Second League voluntarily attended to the study (22.3±2.6 age; 60.72kg ±1.74kg; 1.79cm±6.4cm). Athletes were randomly divided into three groups (group 1: n=4: 30Hz; group 2: n=5: 35; group 3: n=4: 40Hz). Before fatigue protocol, every participant's rest center of pressure-sway (CoP-sway) and DJ measurements on force plate were taken. Statistical whole body vibration measurements were practiced on Compex WINPLATE on different frequency (30-35-40Hz), on high amplitude, in the manner that knee flexion angle is 120 0 in 60 seconds. DJ breaking point which is determined for each athlete was applied as DJ jump height after vibration. Just after the fatigue protocol was completed, athletes' CoP-sway measurements after fatigue were practiced on force plate. Different frequency measurements taken to analyse the effects on DJ height of frequency at specific amplitudes were evaluated by ANOVA analysis. Based on variance homogeneity test, the Tukey or Tamhane methods were used for multiple comparisons. A statistical analysis with a paired Student's t test was used to compare pre-vibration and post-vibration treatment values of jumping height at the DJ test. DJ performance is affected by WBV stimuli in different frequency, CoP-sway values and especially fatigue situation in AP direction (p<0.05). In conclusion, 30Hz-35Hz and 40Hz WBV stimuli has an acute effect on DJ performance beside that 35 Hz WBV definitely has the greatest effect.

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Section: Discussionmentioning

confidence: 99%

“…Whole body vibration exercises that have gradually become popular get much interest especially among elite athletes to increase muscular performance and are densely used. 7,8,9 In the performed studies, it is a known truth that whole body vibration (1) increases the muscle force (3,6,8,11,16,17,22,23,24), (3) increases the jumping ability.…”

Section: Introductionmentioning

confidence: 99%