| 摘要 |
A method of performing an aerobic exercise includes providing an exercise step having a base and a leg assembly. A first height level could be achieved by mounting the base directly on a support surface, such as a floor. A second height level could be achieved by detachably engaging the leg assembly to the base so as to elevate the base. In performing the aerobic exercise one of the height levels is selected and the user repeatedly steps up to and down from the top surface or horizontal platform of the base.
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