Motion assistance apparatus and method of controlling the same

A method of controlling a motion assistance apparatus, the motion assistance apparatus including a driving source having a motor, a main fixing member including a first end and a second end, the first end of the main fixing member configured to selectively connect to the second end of the main fixing member to switch the main fixing member from a main unfixed state to a main fixed state in which the main fixing member encircles a first portion of a user that is not legs of the user, an action side fixing member including a first end and a second end, the first end of the action side fixing member configured to selectively connect to the second end of the action side fixing member to switch the action side fixing member from an action side unfixed state to an action side fixed state in which the action side fixing member encircles one or more of the legs of the user, a power transmitting member including a first end and a second end, the first end of the power transmitting member connected to the driving source and the second end of the power transmitting member connected to the action side fixing member such that the power transmitting member is configured to transmit power between the driving source and the action side fixing member, and a controller configured to control the driving source, the method comprising:

• performing, by the controller, a motion assistance operation for the user in response to the action side fixing member being set to the action side fixed state to encircle the one or more of the legs of the user.