Abstract: A wedge-shaped tilt provider is attached in contact with the bottom surface of a seat and the upper surface of a seat connection member of a rocking mechanism to set the seat to an initial inclined position relative to a reference position. By setting the seat to a forwardly inclined position from a horizontal position where the seated surface of the seat is set horizontal, the user straddling the seat can increase the amount of muscle activity of his or her rectus muscle of abdomen, or abdominal muscle. Further, by setting the seat to a rearwardly inclined position, the user straddling the seat can increase the amount of muscle activity of his or her back muscle such as paraspinal muscle.

Abstract: A wedge-shaped tilt provider is attached in contact with the bottom surface of a seat and the upper surface of a seat connection member of a rocking mechanism to set the seat to an initial inclined position relative to a reference position. By setting the seat to a forwardly inclined position from a horizontal position where the seated surface of the seat is set horizontal, the user straddling the seat can increase the amount of muscle activity of his or her rectus muscle of abdomen, or abdominal muscle. Further, by setting the seat to a rearwardly inclined position, the user straddling the seat can increase the amount of muscle activity of his or her back muscle such as paraspinal muscle.

Abstract: A facial treatment device wherein an air pumping means and a rotary member are driven by a rotary power source so as to perform skin cleaning and massaging actions with sucking and rotary functions through a sucking or rotary attachment. A stationary shaft having an axial hole is provided in the device to have an end of the hole communicated with air-intake side of the pumping means and the other end exposed to the exterior, and the rotary member is rotatably supported coaxially with the stationary shaft. The sucking attachment is mounted to the stationary shaft at said the other end of its axial hole, whereas the rotary attachment is mounted, in place of the sucking attachment, to the rotary member made accessible thereto on the same side with said end of the stationary shaft to which the sucking attachment is mounted. Preferably, the common axis of the stationary shaft and rotary member is disposed to intersect at right angles the axis of rotary output shaft of the power source.