Ghiringhelli Rosângela, Ganança Cristina Freitas
Universidade Federal de São Paulo, São Paulo, SP, Brasil.
J Soc Bras Fonoaudiol. 2011 Sep;23(3):264-70. doi: 10.1590/s2179-64912011000300013.
To analyze the findings of posturography with virtual reality stimuli carried out in young healthy adults with no otoneurological complaints, based on the parameters center of pressure, limit of stability and sway speed for different visual stimuli, and regarding differences between female and male genders.
Participants were 50 healthy individuals of both genders (50% female and 50% male) with ages ranging from 18 to 25 years (mean age 21.30 years), with no complaints regarding body balance, and with vestibular outcomes assessed through digital vectonistagmography within normal limits. Posturography was composed of 11 visual stimuli and determined the limit of stability area (LOS), the ellipse area, and the sway speed in ten sensorial conditions. Results were calculated for the studied age range and analyzed according to the values for each stimulus, with the aim to obtain normality parameters.
The average values obtained in posturography regarding limit of stability, ellipse area and sway speed for stimuli with viso-vestibular interaction presented significant differences between genders, and, in all cases, women obtained lower values than men.
The findings of posturography with virtual reality stimuli in healthy young adults evidence that the parameters center of pressure, limit of stability and sway speed present differences between genders and, therefore, must be considered separately.
基于压力中心、稳定极限和不同视觉刺激下的摆动速度等参数，分析在无耳神经学症状的年轻健康成年人中进行的虚拟现实刺激姿势描记术的结果，并探讨男女之间的差异。
参与者为50名健康个体，男女各半（女性50%，男性50%），年龄在18至25岁之间（平均年龄21.30岁），无身体平衡方面的主诉，且通过数字矢量眼震图评估的前庭结果在正常范围内。姿势描记术由11种视觉刺激组成，并在十种感觉条件下确定稳定极限面积（LOS）、椭圆面积和摆动速度。计算所研究年龄范围的结果，并根据每种刺激的值进行分析，以获得正常参数。
在姿势描记术中，关于视觉 - 前庭相互作用刺激的稳定极限、椭圆面积和摆动速度的平均值在性别之间存在显著差异，并且在所有情况下，女性的值均低于男性。
在健康年轻成年人中进行的虚拟现实刺激姿势描记术的结果表明，压力中心、稳定极限和摆动速度等参数在性别之间存在差异，因此必须分别考虑。
