老年人辅助站立椅运动安全性研究

Study on the Safety of the Elderly Standing Chair

随着老龄化程度的日益加剧,老年人能够维持正常生活的能力是整个社会所关心的。而起立是老年人日常生活不可或缺的运动,想完成这一运动对老年人来说又是相当困难的。因此市场上从辅助站立角度设计的辅助站立座椅便应运而生。对市场上大多产品进行考量发现在辅助站立过程中老年人的舒适性及安全性并不能得到很好的保障,过慢的辅助速度对老年人的膝关节有较大的损伤,而过快的辅助速度又会导致老年人在辅助完成阶段前倾跌倒。为使老年人能够安全舒适的起立,本研究通过vicon步态采集系统采集人体在起立过程中人体重心的速度变化情况以及人体前倾跌倒速度阈值实验重心速度的变化来实现。

With the increasing ageing, the ability of the elderly to maintain a normal life is of concern to the whole society. Standing up is an indispensable sport for the elderly in their daily lives. It is quite difficult for the elderly to complete this exercise. Therefore, the auxiliary standing seat designed from the auxiliary standing angle on the market came into being. Considering most products on the market, it is found that the comfort and safety of the elderly in the auxiliary standing process can not be well protected. The slow auxiliary speed has a greater dam-age to the knees of the elderly, and too fast. The assisted speed in turn causes the elderly to fall before the assisted completion phase. In order to enable the elderly to stand up safely and comfortably, this study uses the Vicon gait acquisition system to collect changes in the speed of the human body during the stand-up process and the change in the center of gravity of the human body＇s forward-falling speed threshold.