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Biomechanical Approach toward Rehabilitation

康复的生物力学方法

基本信息

批准号：
11650275
负责人：
TAGAWA Yoshihiko
金额：
$ 2.18万
依托单位：
Kurume Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650275/
关键词：
Abnormal walking Compensatory action Model analysis Electrical stimulation MR imaging Strain distribution Restoration of human walking Stress analysis 筋力増強脳卒中装具歩行弛緩性麻痺 Walk-about 歩行シミュレーション筋力維持・増強 QOL 運動療法関節間力

项目摘要

Main results are summarized as follows :(1) We developed a model that simulates gaits of patients with flaccid paralyzed legs, who usually require braces such as Walk-abouts and canes.(2) Comparing pathological gaits of patients with muscular dystrophy and after pelvic osteotomy, the pelvic motions of them in the frontal plane were just the opposite. It results from the difference of the incomplete or complete loss of function of the abductor muscle at their hip joints.(3) We developed an estimating method of inner forces during exercise. This method is based on exercise models and measurements of the integrated EMG and external forces during exercises. In spite of this simple method, the estimated results were very similar to the results by in vivo measurements abroad.(4) In the electrical stimulation method using surface electrodes, it is important to study how the electrode can stimulate skeletal muscles deeply. We ensured how by using the intensity of the MR imaging reflecting muscle activities. Also we tern developed a new electrical stimulation method.(5) Advantages of the new method were confirmed in a long-term experiment on upper and lower limbs in comparison with other training methods.(6) Strain distribution of entire ligament could be measured three-dimensionally.(7) Reciprocal gait orthosis was applied to improve characteristics of hemi-paralytic walking. The circumduction gait and the rotational movement of upper torso were improved.(8) The finite element method was performed using 3-dimensional models to examine the biomechanical characteristics of the femoral component in resurfacing hip arthroplasty. The highest stress concentration was observed in the same region of the neck of a patient with a nontraumatic femoral neck fracture.

主要结果总结如下：（1）我们建立了一个模型，模拟腿部弛缓性瘫痪患者的步态，这些患者通常需要步行器和手杖等支具。（2）比较肌营养不良症患者和骨盆截骨术后患者的病理步态，骨盆在额面的运动正好相反。这是由于髋关节外展肌功能不完全或完全丧失的差异造成的。(3)我们开发了一种运动过程中内力的估计方法。该方法基于运动模型以及运动期间综合肌电图和外力的测量。尽管这种方法简单，但估计的结果与国外体内测量的结果非常相似。(4)在使用表面电极的电刺激方法中，研究电极如何深层刺激骨骼肌具有重要意义。我们通过使用反映肌肉活动的 MR 成像强度来确定如何进行。我们还开发了一种新的电刺激方法。(5)与其他训练方法相比，在上肢和下肢的长期实验中证实了新方法的优点。(6)可以三维测量整个韧带的应变分布。(7)应用交互步态矫形器改善偏瘫行走特性。环转步态和上躯干的旋转运动得到改善。(8)利用三维模型进行有限元分析，研究置换髋关节置换术中股骨假体的生物力学特性。在非创伤性股骨颈骨折患者的颈部同一区域观察到最高的应力集中。