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01-12-2012 | Oral presentation | bijlage 1/2012 Open Access

Journal of Foot and Ankle Research 1/2012

Long term whole body vibration training has no effects on plantar foot sensitivity and balance control

Journal of Foot and Ankle Research > bijlage 1/2012
Günther Schlee, Thomas L Milani


Below-threshold vibration together with low-level mechanical noise (stochastic resonance) is known to have positive effects on plantar foot sensitivity and balance control [ 1]. However, the effects of above-threshold stimulation on both variables are still not proved. The goal of this study was to investigate the effects of whole body vibration (WBV) training, characterized by above threshold stimulation, on plantar foot sensitivity and balance control of young healthy subjects.

Materials and methods

38 subjects of both genders were divided in training (WBV, n=27) and control (CG, n=11) groups. Plantar foot vibration sensitivity and balance were measured before and after a 6-week WBV training, in which subjects were exposed weekly to three bouts of vibration stimuli (27 Hz vibration frequency; 2 mm horizontal amplitude), with duration from 5.30 up to 8.30 min. Vibration sensitivity was measured at the heel, first and fifth metatarsal heads and hallux of both feet. Balance was measured with subjects standing on one leg (right and left legs) during 20 s with eyes open. Vibration thresholds [µm] and CoP excursion [mm] before and after training were compared with a Wilcoxon Test (α=.05).


No significant differences in vibration thresholds at all measured locations of both feet (fig. 1 shows data for the right Hallux) were found after WBV training for both groups. Similar results were evaluated for CoP excursions measured during standing with the right (fig. 2) and left legs.


Whereas short term WBV training is shown to reduce plantar foot sensitivity but increase balance control [ 2], no effects of long term training could be seen. This may be due to adaptation effects to the linear, above-threshold stimulation characteristics of this kind of training. WBV seems not to be an adequate strategy to improve foot sensitivity or balance control of young healthy subjects.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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