Foot sensor and other sensor pads

An insole configured to be inserted into a shoe, the insole comprising:

• a flexible enclosure that is foldable;
• a sensor layer enclosed by the flexible enclosure, the sensor layer defining a sensing area shaped for the sole of a foot;
• a plurality of rigid stiffeners coupled to the flexible enclosure at predefined locations to define a folding pattern of the flexible enclosure, the flexible enclosure corresponding to at least a sensing region and a peripheral region, the sensing region including a majority of the sensing area of the sensor layer, the peripheral region is configured to be folded at an angle relative to the sensing region;
• and
• an electrical connector connected to the sensor layer at a point of connection that is located in the peripheral region.

A system comprising:

• a sensor pad configured to output sensor pad data, the sensor pad comprising:
• a sensor layer having a surface area that defines a sensing area, the sensor layer configured to measure values detected at a plurality of locations of the sensing area;
• and
• a stiffener layer coupled to at least a majority of the surface area of the sensor layer, the stiffener layer having a micro-cut pattern that reduces resistance of the stiffener layer in one or more predefined directions to enhance the sensor layer stretching or compressing in the one or more predefined directions to conform with the contoured surface.
• an application in communication with the sensor pad, the application comprising a user interface configured to:
• display a heatmap of a pressure differential across the sensor pad;
• display a gait visualization;
• and
• display a load graph of representing force exerted on the sensor pad.