Podokinetic After-Rotation Is Transiently Enhanced or Reversed by Unilateral Axial Muscle Proprioceptive Stimulation

Figure 2

Vibration during stepping in place. (a) Mean body angular velocity. After the onset of the vibratory stimulation (at 60s) of the right lumbar muscle (blue trace), subjects started to rotate counterclockwise (negative values in ordinate). When the vibration was applied to the left side (red trace), subjects rotated clockwise (positive values). (b) Mean angular velocity under stepping in place and right vibration and left vibration conditions. There is no difference in the absolute value of rotation velocity between right and left side vibrations.

(a)

(b)