| 摘要 |
PURPOSE: A shaking-type sporting apparatus the coccyx of user does not interfere with the seat part even if the seat part shakes, the case where user disagreeably feels gets a few. CONSTITUTION: A shaking-type sporting apparatus. By shaking the seat part(2) in which the user takes a seat the exercise load is given to user. The depression is formed on the central location of the width direction of the seating area(40) of the seat part on the seam of the coccyx of the user taking a seat.
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