Article

The purpose of this study was to investigate the adaptation with practice of
postural control while standing on a rocker board. Thirteen healthy young adults
participated. The participants were asked to stand in a sagittal plane on a
rocker board with a semicircular base as steadily as possible for as long as they
could. With practice, the duration of maintaining postural balance increased
significantly and postural stability improved (P<0.05). Furthermore, the
distances between center of pressure and the projection of center of mass
decreased (P<0.05), although joint motion of the lower extremities did not change
(P>0.05). This observation would be the consequence of a highly redundant human
locomotor system. With practice, the central nervous system was able to shift the
center of pressure position close to the accurate center of mass position.

Langue : ANGLAIS