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Study on effectiveness of a passive mechanical joint introduced to a passive motion exercise device of ankle dorsiflexion/plantarflexion

被动机械关节引入踝关节背屈/跖屈被动运动锻炼装置的有效性研究

基本信息

批准号：
18500449
负责人：
HOMMA Keiko
金额：
$ 2.59万
依托单位：
National Institute of Advanced Industrial Science and Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18500449/
关键词：
Ankle joint Range of Motion Exercise Machine Passive Degree of Freedom

项目摘要

We proposed and have been developing a passive motion exercise device which enables passive dorsiflexion/plantarfrexion movements of ankle with adjustable inversion/eversion. This research project aimed to examine the effects of dampers attached to the passive mechanical joint around inversion/eversion axis of the device. The project also aimed to find indicators of the effect of exercise motion through experiments with healthy subjects.We have conducted preliminary experiment on the effect of the dampers employed on the inversion/eversion axis. In the experiment, small pneumatic dampers were attached to the footplate of the prototype device. The results show that the dampers attached to the passive mechanical joint will avoid the rapid motion of the footplate that may cause undesirable reaction of the patients. In order to find indicators that represent effects of the exercise motion, we conducted experiments with healthy subjects and biosignals were obtained during exercise motion as well as before and after exercise motion. Among measured biosignals, skin blood flow and surface/deep tissue temperature showed patterns of variation which may be related to exercise motion. We also modified the prototype device to make it more adjustable to the users.

我们提出并一直在开发一种被动运动锻炼装置，该装置能够实现踝关节的被动背屈/跖屈运动，并具有可调节的内翻/外翻。本研究项目旨在检查阻尼器连接到被动机械关节周围的设备的内翻/外翻轴的影响。该项目还旨在通过健康受试者的实验找到运动效果的指标。我们对在倒置/外翻轴上使用的阻尼器的效果进行了初步实验。在实验中，小型气动阻尼器连接到原型装置的踏板。研究结果表明，在被动机械关节上附加阻尼器，可以避免踏板的快速运动引起患者的不良反应。为了找到代表运动效果的指标，我们对健康受试者进行了实验，并在运动过程中以及运动前后获得了生物信号。在测量的生物信号中，皮肤血流和表面/深层组织温度显示出可能与运动运动有关的变化模式。我们还修改了原型设备，使其更适合用户。