[Computerized analysis of the effects of age on posture control]

The authors examined postural sway in 112 normal subjects by means of a computerized force platform system. The performances of 14 subjects (7 males and 7 females) for each of these age groups: 12-15, 16-19 and the six next decades until 79 years were considered. The posturographic test requires two trials, one with eyes open and another with eyes closed, with patients in Romberg's position. On the average eyes-closed measurements have always been greater than those with eyes open. Moreover this study shows that during the growth the characteristics of postural control are different between the two sexes and as regards adult performances. During ageing a progressive significant stability impairment, especially upon visual deprivation, was shown.