In one example, an apparatus. includes a shoe having a sole with at least a portion of foam replaced with a composite polymeric foam, at least one probe disposed in the composite polymeric foam, a voltage detector coupled to the probe that detects voltage data generated by the composite polymeric foam, and a transformation module that converts voltage data generated by the composite polymeric foam in response to deformation events into GRF, acceleration, or pressure data. In another example, a method includes receiving voltage data produced by composite polymeric foam, the composite polymeric foam providing support and padding in the sole of a shoe, converting the voltage data to force data, comparing the force data to a profile, and transmitting, when the force data fails to fall within a threshold of the profile, a feedback signal to a physical feedback device, the feedback signal indicating a difference with the profile.

An orthotic insole and a method for manufacturing the same, the orthotic insole comprising: an insole body receivable in a footwear, the insole body having a front body end, a rear body end opposite the front body end, a top body surface for receiving a foot of the user and a bottom surface configured to be received on an insole of the footwear, the top insole surface including a plurality of top surface portions, each top surface portion being substantially angled relative to an adjacent top surface portion, the top surface being substantially untwisted along its length between the front and rear body ends such that the top surface remains leveled in a widthwise direction as the top body surface extends from the front body end to the rear body end.

An orthotic insole and a method for manufacturing the same, the orthotic insole comprising: an insole body receivable in a footwear, the insole body having a front body end, a rear body end opposite the front body end, a top body surface for receiving a foot of the user and a bottom surface configured to be received on an insole of the footwear, the top insole surface including a plurality of top surface portions, each top surface portion being substantially angled relative to an adjacent top surface portion, the top surface being substantially untwisted along its length between the front and rear body ends such that the top surface remains leveled in a widthwise direction as the top body surface extends from the front body end to the rear body end.

Sole structures, foot support systems, articles of footwear, and/or other foot-receiving devices include: (a) a first footwear component having a ground-facing surface, wherein a forefoot portion of the ground-facing surface includes arched medial and lateral surfaces and (b) a second footwear component having an upper-facing surface, wherein a forefoot portion of the upper-facing surface includes arched medial and lateral surfaces that face (and optionally contact) the respective arched medial and lateral surfaces of the first footwear component. The first and second footwear components are movably engaged together such that: (a) the arched medial surface of the first footwear component moves with respect to and along the arched medial surface of the second footwear component and (b) the arched lateral surface of the first footwear component moves with respect to and along the arched lateral surface of the second footwear component.

Sole structures, foot support systems, articles of footwear, and/or other foot-receiving devices include: (a) a first footwear component having a ground-facing surface, wherein a forefoot portion of the ground-facing surface includes arched medial and lateral surfaces and (b) a second footwear component having an upper-facing surface, wherein a forefoot portion of the upper-facing surface includes arched medial and lateral surfaces that face (and optionally contact) the respective arched medial and lateral surfaces of the first footwear component. The first and second footwear components are movably engaged together such that: (a) the arched medial surface of the first footwear component moves with respect to and along the arched medial surface of the second footwear component and (b) the arched lateral surface of the first footwear component moves with respect to and along the arched lateral surface of the second footwear component.

Disclosed herein are devices, systems and methods for redistributing the normal weight distribution of a user in a standing position. One example is a postural platform for either the left or right foot having a bottom surface defining a reference plane, a top surface configured as a foot contact surface and a perimeter side wall between the bottom and top surfaces. The top surface of the postural platform is rotated about a first rotational axis parallel to the reference plane and rotated about a second rotational axis orthogonal to the reference plane. In another example, a system includes first and second postural platforms that are independent of one another. In other example, the device is a sandal, shoe, sneaker or any foot covering with a tops surface being at a complex angle to a bottom surface. The top surface is tiled downwardly either to the left or right and turned either counter-clockwise or clockwise based on whether it is a respective left or right postural platform.

An article of footwear including a sole and a first support member and a second support member positioned on the sole, where the first support member and the second support member are separated from each other, and where the first support member has a main body and a terminal end that extends at least partially below the main body of the first support member, and the second support member has a main body and a terminal end that extends at least partially below the main body of the second support member.

An article of footwear including a sole and a first support member and a second support member positioned on the sole, where the first support member and the second support member are separated from each other, and where the first support member has a main body and a terminal end that extends at least partially below the main body of the first support member, and the second support member has a main body and a terminal end that extends at least partially below the main body of the second support member.

A shoe midsole composed of a foamed peroxide-crosslinked polyolefin elastomer includes a silane-grafted polyolefin component, an elastomeric component, and additives dispersed in the foamed peroxide-crosslinked polyolefin elastomer. The elastomer component includes one or more elastomeric polymers selected from the group consisting of ethylene vinyl acetate copolymer, polyolefin elastomers, olefin block copolymer, polyoctenamer, anhydride modified ethylene copolymers, ethylene propylene diene terpolymer, and combinations thereof. The silane-grafted polyolefin component and elastomer component are crosslinked with C—C bonds. Advantageously, the foamed peroxide-crosslinked polyolefin elastomer is substantially free of silane crosslinking as formed and substantially free of water. Characteristically, the additives and one or more elastomeric polymers are in sufficient amount that a melting temperature of crystalline regions in the foamed peroxide-crosslinked polyolefin elastomer is greater than 100° C. as measured by differential scanning calorimeter thermographs.

A shoe midsole composed of a foamed peroxide-crosslinked polyolefin elastomer includes a silane-grafted polyolefin component and an elastomer component. The elastomer component includes ethylene vinyl acetate copolymer and a component selected from the group consisting of polyolefin elastomers, anhydride modified ethylene copolymers, and combinations thereof. The silane-grafted polyolefin component is crosslinked to the elastomer component with C-C bonds. The foamed peroxide-crosslinked polyolefin elastomer includes a plurality of closed cells. Characteristically, the foamed peroxide-crosslinked polyolefin elastomer is substantially free of silane crosslinking as formed and substantially free of water.