PROBLEM TO BE SOLVED: To provide a motion assistance apparatus and a method of controlling the same.SOLUTION: A motion assistance apparatus includes a first fixing member to be fixed to a portion of a subject, a second fixing member to be fixed to another portion of the subject, a driving source provided in the first fixing member, a power transmitting member connected between the driving source and the second fixing member, a sensing portion configured to sense a fixing state of the first fixing member or the second fixing member, and a controller configured to control the driving source on the basis of information received from the sensing portion.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】 運動補助装置及びその制御方法を提供する。【解決手段】 運動補助装置は、対象体の一部に固定可能な第1固定部材と、前記対象体の他の部分に固定可能な第2固定部材と、前記第1固定部材に備えられる駆動源と、前記駆動源及び第2固定部材の間に接続される動力伝達部材と、前記第1固定部材又は第2固定部材の固定状態を検出するためのセンシング部と、前記センシング部から伝えられる情報に基づいて前記駆動源を制御する制御部を含む。【選択図】 図1