Abstract：
A three-partition distributed force platform (3P-DFP) is proposed to measure the plantar pressure distribution, and foot support characteristics are evaluated with the obtained pressure distribution information. Twenty-seven young adults and 40 elderly adults were randomly recruited to perform the test in three phases: double-leg stance with eyes closed, double-leg stance with eyes opened, and single-leg stance with eyes opened. The evaluation parameters of foot support surface characteristics and support point characteristics were calculated based on the average position information of the center of pressure in the lateral of sole, media of sole, posterior of heel, and entire pelma. The results showed that the support width of the foot sole was significantly greater in the elderly group (p <0.01), but the overall support area showed a decreasing trend. The CoP excursion in the media-lateral direction was significantly higher in the elderly group from double-leg stance to single-leg stance (p <0.01). The CoP trajectory in the elderly group tends to shift in a medial direction with increasing age or postural difficulty.
摘要：
提出了一种三分区分布力平台（3P-DFP）来测量足底压力分布，和足部支撑特性用获得的压力分布信息进行评估。随机招募27名年轻人和40名老年人分三个阶段进行测试:闭眼双腿站立,睁开眼睛的双腿姿势，睁开眼睛的单腿姿势。根据鞋底外侧压力中心的平均位置信息，计算了足部支撑面特征和支撑点特征的评价参数，鞋底媒体，脚跟后部，和整个骨盆。结果表明,老年组足底支撑宽度明显增大(p<0.01),但总体支持面积呈下降趋势。从双腿姿势到单腿姿势，老年组中侧方向的CoP偏移显着增加（p<0.01）。老年人组的CoP轨迹倾向于随着年龄或姿势难度的增加而向内侧方向移动。
