足底振动噪声对老年人平衡能力的影响

被引:5
作者
吴方芳 [1 ]
王人成 [1 ]
金德闻 [1 ]
张济川 [1 ]
水户部一孝 [2 ]
吉村昇 [2 ]
机构
[1] 清华大学摩擦学国家重点实验室智能与生物机械分室
[2] 日本秋田大学工学资源学部电器电子工学科
基金
中国博士后科学基金; 教育部留学回国人员科研启动基金;
关键词
平衡控制; 平衡能力; 振动噪声;
D O I
10.16289/j.cnki.1002-0837.2007.04.003
中图分类号
R363 [病理生理学];
学科分类号
100104 ;
摘要
目的通过足底振动噪声刺激,提高老年人足底感觉敏感度,改善其平衡控制能力。方法采用可调频振子作用于足底,利用三维运动跟踪系统对6名老年人及8名年轻人进行了平衡能力测试和评估,提取4个主要评估参量:移动轨迹总距离、最大前后动摇径、最大左右动摇径和身体移动包络面积。分析了在5种测试条件下老年人立位姿势的变化。结果加振后4个参量均有减弱趋势,其中3个参量(移动轨迹总距离、最大左右动摇径、身体移动包络面积)有明显差异(P<0.05),而最大前后动摇径未有明显差异(P>0.05)。不同振动频率对老年人平衡控制能力有着不同的影响。结论微弱的振动噪声刺激,能够改善老年人平衡控制能力,可以利用在足底增加振动刺激的方法对老年人立位平衡能力进行训练。
引用
收藏
页码:299 / 303
页数:5
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