US Patent 10099084 Balance board fitness training device

A balance board fitness training device is provided. The fitness training device may include a deck having a top surface, a bottom surface, and opposing first and second side edges and opposing front and rear longitudinal edges together forming a perimeter of the deck; at least one wheel bracket structure positioned below the deck, the at least one wheel bracket structure rotatably supporting at least two wheels and configured so as to be movable relative to the deck about a pivot line at least partially extending between the opposing first and second side edges of the deck; and at least one resilient member connected to the at least one wheel bracket structure and the deck.