Patent ID: 7160229

Claim:
An exercise step, comprising: a plate-shaped panel; and an air-cushioning leg provided under the panel to support the panel, and absorbing a load applied to the panel by an air cushioning effect, wherein said air-cushioning leg comprises a main body including: a plurality of tubular bulged parts having different load absorbing capacities, said bulged parts being arranged to form a layered structure; a closed base part coming into contact with a support surface, and an upper end partially opened to define an air passage, wherein a plurality of foot parts are projected from a bottom surface of the base part of the main body, thus preventing the base part of the main body from being compressed due to the load; an air control unit seated in the open part of the upper end to control an amount of air which flows into and out of the main body; and a cover member covering the upper end of the main body in which the air control unit is seated.