BALANCE PRACTICING MACHINE USED TO PRACTICE BALANCING BODY OF USER AND PROVIDE EXERCISE FOR USER

摘要

PURPOSE: A balance practicing machine is provided to do more effective balancing practice by allowing adjustment of a size of a seat to comfortably accommodate a user's body type and by imparting a compound motion to the seat when the machine is in use. CONSTITUTION: The balance practicing machine includes a seat(4) on which a user sits, a drive mechanism imparting a swinging motion to the seat, an expandable and contractible member provided on a seating surface(5) of the seat, and a mechanism expanding and contracting the expandable and contractible member. The expandable and contractible member is positioned to oppose thighs and knees of the user when the user sits on the seat. The expandable and contractible member includes a first expandable and contractible element and a second expandable and contractible element.