A basic study of gait analysis in aged prsons

以8名学生(年龄24.5（]SY.+- -[)4.14，身高171.75(]SY.+- - [)2.86 cm）和10名老年人(年龄79.0（]SY.+- -[)11.37，身高145.29(]SY.+- - [)11.37 cm）为研究对象。受试者被要求以自己喜欢的速度走直线。不同高度的木制立方体物体被设置成与直线成直角的障碍物。障碍物的大小是相同的宽度（2.5 cm），但根据以下5种条件进行测试：0、5、10、15和20 cm。行走的动作被摄像机拍了下来。研究结果如下：1。在学生中，前脚底离障碍物顶部的距离（H1）随着障碍物高度的增加而增加。后脚底距障碍物顶部（H2）的距离显著大于H1.2的距离。学生x与老年人的比较显示，老年受试者H1的距离明显大于老年受试者。3. 在无障碍物（高度为0 cm）和有障碍物（高度为5、10、15、20 cm）的情况下行走的比较表明，老年人步幅的增加速率和行走速度的降低速率均大于学生。4. 在5 cm、10 cm和15 cm高度的障碍物上，老年人跨障时躯干的倾斜度显著大于学生。5. 老年人踏过障碍物时背屈的最大角度相对小于学生。

The walking motions during atepping over the different obstacle height were studied using 8 students (age 24.5(〕SY.+-.〔)4.14, height 171.75(〕SY.+-.〔)2.86 cm) and 10 elderly people (age 79.0(〕SY.+-.〔)11.37, height 145.29(〕SY.+-.〔)11.37 cm) as the subjects. Subjects were requested to wslk a straight coures at a perferred speed. The different heights of wooden cubic objects were set at a arighy angle to the straight course as obstacles. the size of the obstacles were the same width (2.5 cm) but, defferent heights according to the following 5 conditions which were tested : 0,5,10,15 and 20 cm. The walking motions were filmed by a video camera.The results are as follows : 1. In the students, the distance of the forward foot sole from the top fo the obstacle (H1) was increased in accordance with the height of the obstacles. Moreover, the distance of the backward foot sole from the top of the obstacle (H2) was significantly greater than the distance of H1.2. Comparison between the studentx and aged persons showed thea the distance of H1 was ashnificantly greater in aged subjects. 3. Comparison between walking with out obstacle (height : 0 cm) and with obstacles (height : 5,10,15,20 cm) showed that in aged persons the rate of increase of the stride length and the rate of decrease of walking speed were larger than in students. 4. In the aged persons the tilting angle of the trunk during stepping over the obstacles, in case of 5 cm, 10 cm and 15 cm height obstacles, were significantly larger than in the students. 5. In the aged persons the maximal angle of dorsi-flexion during stepping over the obstacle was relatively smaller than in the students.