This study is continued from Part 3 , the method ofaging simulation w 曲 orthotic devices was applied to estimate the effect ofthe aging for multiple residential environments ' arranging related to the movement ofstanding up and sitting down , stepping up and dQwn. As the result , changing C . S. R effects on the case ofone side handrail attached more than the case of both sides handrails attached like armrest or parallel bars especially fbr the aged , Moreover , changing C . S. R effects en similarly in all height of seat or step , KqJnvords, ' standing up andsiting down, stePP ing up and down, nursing caneprevention