PROBLEM TO BE SOLVED: To provide a knee extention restriction supporter for knee which imposes knee extention restriction in walking in order to reduce burden on a lower limb bone or joint of a person having a knee ache due to gonarthrosis of the elderly, etc., enables the person to smoothly move body weight from a heel to toe, increases contractive force of muscle of the whole lower limb, reduces burden on a knee joint, and alleviates knee ache in walking.SOLUTION: The knee extention restriction supporter for knee includes: hook-and-loop fasteners 2 on right/left upper/lower edges of a front-opening knee supporter body 1 a flexible knee extention restriction belt 3 fixed on an upper edge of a side face of the supporter body 1. The hook-and-loop fasteners 2 are attached on a lower edge of the knee extention restriction belt 3 and on a lower edge of the side face of the supporter body 1 for pulling the lower edge in an arrow 4 direction and fixing the lower edge on the supporter body 1. The knee extention restriction supporter also comprises a coil bone 5 attached on the side face of the supporter body 1 and preventing reduction of a knee extention restriction function.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】高齢者の変形性膝関節症などで膝に痛みがある方に対して、下肢の骨や関節にかかる負担を軽減させるために、歩行時に膝の伸展制限を加えることで、踵から爪先へのスムーズな体重移動が行え、下肢全体の筋肉の収縮力を増すことが出来て、膝関節への負担も軽減し歩行時の膝の痛みの緩和が出来る膝伸展制限膝用サポーターを提供する。【解決手段】前開き用の膝用サポーター本体1の左右の上下両端に面ファスナ2を付け、本サポーター本体1の側面の上端に伸縮性の膝伸展制限ベルト3を固定して、膝伸展制限ベルト3の下端と、それを矢印4の方向に引っ張って本サポーター本体1に固定するために、本サポーター本体1の側面の下端に面ファスナ2を付け、本サポーター本体1の側面に膝伸展制限の機能を低下させないためのコイルボーン5を付けた膝伸展制限膝用サポーターを特徴とする。【選択図】図1