抄録
It is an important issue to prevent and cure knee osteoarthritis. Gait pattern is suggested to be related with the knee osteoarthritis progression. Therefore our objective is to analyze an elevation angle of knee osteoarthritis patient gait and to clarify the feature of movement by using approximate plane of elevation angle. As a result, the same planar law could be applied to a knee osteoarthritis patients gait as a healthy people gait. Some patients have the different approximate plane slope from that of healthy people.