Abstract
The turnover by older persons causes disorders such as the bone fracture. There are a lot of cases that these disorders make them bedridden and then it is connected with their death. Because turnovers in elderly adults will increase as the aging proceeds, it will become large scale social problem. Various researchers investigated the development of training methods and improvement of their living environment for prevention of the turnover. however, quantitative and qualitative evaluations for the load by muscle in the actual turnover are still unclear. From the viewpoint of dynamics, it's necessary to understand a joint torque and muscle activation during turnover to develop the training method and improve their living environment. Here, the link model of the whole body of human is established. By the updated-Lagrangian method, the rate-form equation of motion with the muscle contraction is derived. Then the inverse dynamics analysis by the three-dimensional measurement of turnover process is performed.
