Patent ID: 7758523

Claim:
A method of communicating to a remote location a representation of a physical condition caused by a foot, the method comprising: installing a battery through an opening in a foot support operable to be inserted into footwear such that the battery is removably received in a cavity in said foot support and in communication with said opening; communicating a condition signal representing the physical condition sensed by a condition sensor to a transmitter unit held within said cavity, said transmitter unit being powered by said battery; and transmitting from said transmitter unit a radio frequency signal representing said condition signal, for reception by a receiver unit spaced apart from said transmitter unit; wherein said cavity has an increasing thickness between a lateral side of said foot support and a medial side of said foot support, the thickest portion of said cavity being subjacent a medial longitudinal arch of the foot when said foot support is worn by the foot in said footwear, said thickness defined as being along a direction which is perpendicular both to a longitudinal axis and a transverse axis of said foot support.