| 摘要 |
PURPOSE: An exercise device for waist backbone is provided to strengthen muscular strength and to make the waist, back, and belly of a human body flexible. CONSTITUTION: An exercise device for waist backbone comprises a buttock support part for supporting the buttocks of a user, an upper body support part for supporting the head, shoulder, and waist of the user, and a lower body support part for supporting the leg part of the user. The buttock support part comprises a buttock support frame(1), a motor/reducer(5), a power transmission device(6), a rotary connecting rod(10), and a buttock supporting board.
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