Construction of multi motion analysis system and development of measurement methods for design.

到目前为止，为了对产品/环境设计的数据进行分类，已经从不同的角度对运动/姿势进行了大量的人体工程学研究。然而，随着生活环境的变化，设计所需的人体特征数据的范围也发生了显著的变化。对于这种情况，既没有对人体应激进行定量分析的人体特征数据库，也没有很好的评价方法。在本研究中，基于动态视图对工作姿势数据进行了分析。门或柜子的启闭操作被假定为一项实验任务。特别是在拉扯练习中，研究了姿势与身体操作部位之间的因果关系。实验采用光电三维运动捕捉系统、测力板和肌电图。结果表明，身体平衡和身体功能的压力差异对牵拉运动有很大的影响，并且下肢的压力随姿势、操作负荷和操作区域的不同而不同。此外，还考虑了工作条件与生理压力之间的关系与年龄和性别差异。结果表明，这些差异受工作高度的影响。本研究旨在建立一种基于这些人体数据的评价方法。随着年龄的增长，体位变化的特点是胸廓曲线增加，如圆背。圆背站立需要背部肌肉和腿部肌肉很大的力量，因为脊柱活动性差，重心向后。随着年龄的增长，不仅足部肌肉无力，而且足部功能不全，是圆背老年人难以进行姿势控制的原因。我们认为地板的柔软度和地板的微小滑移容易造成体位晃动。由于这些事实，他们往往会摔倒，并可能有严重的伤害。我们认为，圆背使姿势控制困难。少

So far, a large number of ergonomic studies on movement/posture have been carried out from various points of view in order to classify data for a product/environment design. However, the scope of the human characteristics data needed for the design has changed remarkably with the change of living environment. For such a situation, neither human characteristics database in which physical stress is analysed quantitatively, nor the evaluation method is well established.In this study, data on working posture were analysed based on a dynamic view. The opening-and-closing operation of a door or cabinet was assumed as a task for experiment. Especially about the pulling exercise, a causal relationship between posture and the operating part of the body were studied. An opto-electronic 3D motion capture system, a force plate and an electromyogram were employed for the experiment. As a result, it has turned out that body balance and stress difference by physical functions have a large influence o … More n pulling exercises, and that stress on lower extremities differs with posture, operation load and operating region. Also, the relationship between working condition and physical stress was considered with age and sex differences. It is shown that these differences are influenced by working height. This study is aimed to establish an evaluation method based on these human data.The characteristic of postural change with aging is to increase thoracic curve such as round back. Standing posture in round back needs much strength of the back muscles and leg muscles, because spinal mobility is poorly and center of gravity exists backward. It is difficult to perform postural control for the elderly in round back, because of not only muscular weakness of foot with aging but insufficiency of foot. We think that it is easy to occur postural sway by softness of floor and tiny slip of floor. As a result of these facts they tend to fall and may have a serious injury. We suggest that round back makes posture control difficult. Less