Data for: Postural data from Stargardt's syndrome patients

The database is a collection of postural data acquired from 10 patients affected by the rare Stargardt’s syndrome, all having the ABCA4 gene mutation, and from 10 control healthy subjects. Specifically, the database includes a file (.xlxs) called SubjectsData and 20 datasets (MATLAB structures) containing postural signals. Each subject performed a total of 15 postural tests, 5 postural tests for 3 different conditions (‘C’: eyes-closed; ‘O’: eyes-open, still target fixation; ‘M’: eyes-open, moving target tracking). For each postural test, 11 postural derived signals (the anterior-posterior force, the medio-lateral force, the weight force, the three torques on the three reference axis , the two torques on the x and y axis on the platform surface, the two coordinates of the center of pressure, and the free torque on the z axis) were computed from 8 raw signals, acquired at the Ophthalmic Hospital of Turin, Italy, through an 8-channel Kistler 9286A force platform connected to a Step32 system. Thus, a total of 285 postural signals (120 raw and 165 derived) are available for each subject. The database may be useful to: (1) investigate postural adaptations of patients affected by Stargardt’s syndrome; (2) support definition of rehabilitative procedures to reduce postural instability of patients affected by Stargardt’s syndrome; and (3) support investigation on visual control of balance in the general population.

该数据库收录了10名患有罕见斯塔加德综合征（Stargardt’s syndrome）且均携带ABCA4基因突变的患者，以及10名健康对照受试者的姿势数据。具体而言，该数据库包含一个名为SubjectsData的.xlxs文件，以及20组搭载姿势信号的MATLAB结构体数据集。每位受试者总计完成15项姿势测试，涵盖3种不同测试条件：‘C’为闭眼状态，‘O’为睁眼、固定目标注视状态，‘M’为睁眼、追踪移动目标状态，每种条件下各开展5项测试。针对每一项姿势测试，研究人员通过连接至Step32系统的8通道奇士乐（Kistler）9286A测力台，在意大利都灵眼科医院采集8路原始信号，并从中计算得到11项姿势衍生信号，包括前后向力、内外侧向力、体重力、作用于三个参考轴的三项扭矩、平台表面x轴与y轴上的两项扭矩、压力中心的两项坐标，以及z轴上的自由扭矩。每位受试者总计可获得285项姿势信号，其中120项为原始信号，165项为衍生信号。该数据库可应用于以下研究场景：（1）探究斯塔加德综合征患者的姿势适应特征；（2）辅助制定旨在改善斯塔加德综合征患者姿势不稳症状的康复方案；（3）助力开展普通人群平衡视觉调控机制的相关研究。