[The protocol for the vestibulospinal system study by means of a dynamometric platform. Patterns of normalcy]

The Posturography, the recording of the postural balance in standing position, allows the assessment of the vestibulospinal function, through the shifts of the pressure center. In this paper are expressed the results gained with this static posturographic protocol followed at our Department, using a dynamometric platform DINASCAN (Institute of Biomechanics, Valencia, IBv) in 63 normal people. Four parameters (i.e. maximal extent of antero-posterior displacement: lateral wards; full length of the shifting; and the surfaced limited for the changes of the pressure center) in 6 several body positions (Romberg with open and closed eyes; closed eyes and overextended head; closed eyes and right and left cervical turn and standing on only one foot with open eyes) were evaluated. The outcome of the proofs become gradually worsened in accordance with the difficulties of the tests, although there were no differences when considering the results of the proofs with turning or hyperextending the head. Diagnostic possibilities trying dynamometric platforms are considered.