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Development of Computerized Sensation Exercise and Inspection System for Sensational Dysfunctions in Hand and Its Clinical Application in Rehabilitation

手部感觉障碍电脑感觉锻炼检查系统的研制及其康复临床应用

基本信息

批准号：
15500370
负责人：
TSUJIO Showzow
金额：
$ 2.3万
依托单位：
Kagoshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

Rehabilitation of sensational dysfunctions in a hand, i.e. dysfunctions of tactile sensation, pressure sensation, vibratory sensation (pallesthesia) and so on, is very important for manipulation skill of an upper limb and a hand of brain damaged patients. We developed a new "Computerized Hand Sensation Exercise and Inspection System" with which we can be repeatedly to exercise or to examine the tactile and vibratory sensibilities of a hand.The system consists of two modules, a tactile stimulation module and a vibratory stimulation module. The tactile stimulation module possesses nylon monofilament testers, each of which automatically moves to touch a finger pad. The module gives a sequence of the tactile stimulation and its placebo to the finger randomly and gets sensibility responses of a subject. If the responses are correct enough, then the stimulation level is decreased. A minimum stimulation level finally reached by the subject is defined as the tactile sensibility threshold of th … More e subject. A tactile sensation exercise is given the repeated stimulations around the sensibility threshold level.A vibratory stimulation module is equipped with a small vibrator, which is controlled to output the 128 Hz-sinusoidal vibration with variable amplitude. The first joint of a hand finger is given vibratory stimulations by the head of the vibrator. A vibratory sensibility threshold is measured as a minimum stimulation level in the same manner of the tactile sensibility threshold. The vibratory sensation exercise is given the repeated stimulations around the sensibility threshold level.The sensibility thresholds were measured at intervals of over 24 hours and the correlation coefficients of the thresholds were calculated as 0.91 for the tactile sensation examination and 0.78 for the vibratory sensation examination. These values are reasonably high for the reliability and the reproducibility of the sensibility thresholds by using the stimulation modules. The rehabilitation exercises show that the sensibility thresholds decreased for the duration of one week training both of the tactile sensation and vibratory sensations. These results suggest that this system is useful for both of the examination and the training exercise for the tactile and vibratory sensation dysfunctions of a hand. Less

手部感觉功能障碍的康复，即触觉、压感、振动感（感觉麻木）等功能障碍，对于脑损伤患者的上肢和手的操作技能非常重要。我们开发了一种新的“电脑手部感觉锻炼和检查系统”，可以反复锻炼或检查手的触觉和振动感觉。该系统由两个模块组成，触觉刺激模块和振动刺激模块。触觉刺激模块拥有尼龙单丝测试器，每个测试器都会自动移动以触摸指垫。该模块随机向手指提供一系列触觉刺激及其安慰剂，并获得受试者的敏感性反应。如果反应足够正确，那么刺激水平就会降低。受试者最终达到的最小刺激水平被定义为受试者的触觉阈值。触觉练习是在感觉阈值水平附近给予重复刺激。振动刺激模块配备有小型振动器，控制该振动器输出128 Hz、可变幅度的正弦振动。手指的第一关节由振动器的头部给予振动刺激。以与触觉灵敏度阈值相同的方式将振动灵敏度阈值测量为最小刺激水平。振动感觉练习是在感觉阈值水平附近进行重复刺激。以超过24小时的间隔测量感觉阈值，计算出阈值的相关系数：触觉检查为0.91，振动感觉检查为0.78。对于使用刺激模块的敏感性阈值的可靠性和可重复性来说，这些值相当高。康复训练表明，触觉和振动感觉训练一周后，感觉阈值均下降。这些结果表明该系统对于手的触觉和振动感觉功能障碍的检查和训练都是有用的。较少的