Abstract:
A system may be provided for incorporation in an article of footwear that has an upper coupled to a sole, where the sole has an insole and an outsole and the upper and the insole define an interior space for receiving a foot of a user. The system may include a device configured to be coupled to the footwear beneath the user's foot and a structure for fixing the device in place in a predetermined position in the footwear. In such system, the structure may include a compressible portion coupled to a substantially incompressible portion, and the device may be directly supported by the hard plastic portion of the structure to provide a feedback signal to the user when a pressure applied to the device by the user's foot exceeds a threshold value.