Effects of prolonged local vibration superimposed to muscle contraction on motoneuronal and cortical excitability.

Acute effects of prolonged local vibration (LV) at the central nervous system level have been well investigated demonstrating an altered motoneuronal excitability with a concomitant increase in cortical excitability. While applying LV during isometric voluntary contraction is thought to optimize the effects of LV, this has never been addressed considering the acute changes in central nervous system excitability. In the present study, nineteen healthy participants were engaged in four randomized sessions.