Patent ID: 8025588

Claim:
A sports training device comprising: a flexible enclosure defining a base chamber therein and having a generally planar top wall that is configured to receive a user's foot thereupon during use, the enclosure deforming in shape in response to a changing application of user weight thereto, such that the shape deformations of the enclosure correspondingly change a volume of a void space of the base chamber; and indicator assembly connected to the enclosure and being configured to convey a perceptible cue to a user in response to a changing application of user weight to the flexible enclosure, the indicator assembly further comprising a valve that is fluidly coupled to the base chamber, the valve being configured to emit an audible cue when air flows therethrough, and wherein the changing volume of the void space of the base chamber establishes an airflow through the valve so as to emit the audible cue.