Development of biomechanically musculoskeletal models and its application in understanding of ageing process for health

The ageing process in health is one of main research topics currently and in the near future. The key icon for ageing in health is daily movements, e.g.walking. Sometime, people are unable to walk as normal because of various reasons, e.g. for the ageing in the elderly. As gait change indicates the ageing process, and thus it is important to look into how walking changes. So far, the updated motion capture system is capable of investigating gait in detail, e.g. the angles, forces, moments and powers in the joints during walking, but there is a lack of knowledge on how muscles and bones co-ordinately work and how much forces exist in the muscles and bones during gait with the ageing. Though a few of previous studies have explored muscle force and joint force during gait, there are many research questions remaining not solved.