| 摘要 |
A waist twister includes a base disk, a rotation disk rotatably mounted on the base disk, a top disk secured on the rotation disk, a drive motor secured on the top disk and having an impeller, and a top cover secured on the top disk to cover the impeller. Thus, the impeller has an unevenly distributed weight on the drive motor, so that when the drive motor is operated to rotate the impeller, the drive motor produces a vibration to vibrate the top disk, the rotation disk and the base disk to provide a swaying function to the user standing on the top disk. In addition, the top cover has ventilating holes to introduce the air flow produced by the impeller to flow outwardly to provide a heat dissipation effect to the user.
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