Patent ID: 7789463

Claim:
A chair for a waist exercise, comprising: a seat which has a circular plate for stably supporting a user's hips, and a receptacle which is vertically extended in a downward direction from a lower side of the circular plate; a cylindrical connection unit, which has an upper end inserted into the receptacle of the lower side of the seat, absorbs a pressure from a vertical weight on the seat, and a length of the cylindrical connection unit is adjustable so as to adjust the height of the seat; a support unit which has an upper side engaging a lower side of the connection unit and is provided with a plurality of legs which are extended in a direction perpendicular to an axis of the cylindrical connection unit; handles provided in the circular plate, wherein the handles include holes through the circular plate having a predetermined shape for supporting a user's body as the user holds the handles for a waist and pelvic rotation and are installed at both sides of the circular plate; a plurality of pressurizing portions provided on circular plate of the seat between the handles for pressurizing the user's hips when the user sits for thereby enhancing a blood circulation; and a front protrusion provided on the portions of the circular plate in which the user's scrotum is positioned.