An apparatus for measuring the temperature distribution over the sole of the foot has a flexible substrate. The substrate defines a plurality of discontinuities forming a plurality of substrate segments. Each substrate segment has a sensor region with a surface for coupling a sensor, and at least one connector to connect to at least one sensor region of an adjacent substrate segment. Each of a plurality of the sensor regions is configured to be movable relative to other sensor regions. The discontinuities cause the flexible substrate to exhibit elastic properties in the aggregate. The apparatus also has a plurality of resistive contact temperature sensors coupled with the flexible substrate.
