| 摘要 |
One embodiment of the present invention comprises a balance platform apparatus, including, a balance platform having upper and lower surfaces, and a freely rotatable ball member. The lower surface of the balance platform includes a rim member which projects in a generally perpendicular direction away from the platform and which encircles an area of the lower surface of the platform. In use, the balance platform is placed upon the ball member, and the user tries to balance platform upon the ball member. During the balancing activity, the rim member tends to confine movement of the ball member to within the area encircled by the rim member. In another embodiment of the invention, the ball member is rotatably supported in a cradle member.
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