PROBLEM TO BE SOLVED: To provide a knee bending exercise tool that can be used when a person with a bad knee sits on a chair, bends both legs, sandwiches a columnar air bag main body between thighs, and performs an exercise of bending the knee. .. SOLUTION: A knee bending exercise tool is provided with an air hole 3 in a columnar air bag main body 1, a connection portion 5 is provided on both sides of the columnar air bag main body 1, and a handle 2 is attached to both sides. The handle stoppers 6 on both sides were provided so that the handles 2 would not come off, and the net cover 4 was put on the columnar air bag main body 1 and the handles 2 on both sides. [Selection diagram] Fig. 1【課題】ひざの悪い人が、椅子に座って、両足を曲げて、太ももの間に円柱状の空気袋本体をはさみ、ひざを曲げる運動を行うときに、使用できるひざ曲げ運動具を提供する。【解決手段】ひざ曲げ運動具は円柱状の空気袋本体１に、空気孔３を設け、円柱状の空気袋本体１の両側に接続部５、を設け、持手２、を取り付け、両側の持手２、が外れないように、両側の持手止部６、を設け、円柱状の空気袋本体１と、両側の持手２、に網カバー４を被せた。【選択図】図１
