Patent ID: 6419611
Filing Date: 2002-07-16
Classification: A63B

Abstract:
An exercise device for supporting a left and right foot of a user and allowing alternate successive raising and lowering action of each foot for exercise of said user, said device comprising:a first elastic membrane portion and a second elastic membrane portion in position to closely support said left and right foot of a user above the ground, a support structure for said first and second membrane portions for permitting raising and lowering movement of said left and right foot in a stair stepping action to elastically stretch said membrane portions in succession and allow return to said unstretched condition, said support structure comprising a base defining a first and second fluid containing chamber, each chamber having substantially rigid surfaces and an open top, a fluid underlying said first and second elastic membrane portions which fluid is displaced by stretching of each membrane portion and at least one passageway interconnected with said base for determining fluid flow under said first and second elastic membrane portions.