Shoe insole

Abstract

There is provided a shoe insole that facilitates a movement to grasp the ground with toes while ensuring stability and motility. A shoe insole 1 includes, in order to maintain an inner longitudinal arch 121, an outer longitudinal arch 122, and a transverse arch 120 of a foot, a calcaneal anterior-part support protrusion 90 that abuts a calcaneal anterior part 12A of the foot, and a toe ball support part 100 that supports a thenar 26A and a hypothenar 34A of the foot, with the calcaneal anterior-part support protrusion 90 maintaining the inner longitudinal arch 121, the outer longitudinal arch 122, and the transverse arch 120, wherein an insole front part 110 thinner than the toe ball support part 100 is provided in front of the toe ball support part 100.

1 . A shoe insole comprising: in order to maintain an inner longitudinal arch, an outer longitudinal arch, and a transverse arch of a foot, a calcaneal anterior-part support protrusion that abuts a calcaneal anterior part of the foot; and a toe ball support part that supports a thenar and a hypothenar of the foot, with the calcaneal anterior-part support protrusion maintaining the inner longitudinal arch, the outer longitudinal arch, and the transverse arch, wherein an insole front part thinner than the toe ball support part is provided in front of the toe ball support part. 
     
     
         2 . The shoe insole according to  claim 1 , wherein an upper surface is flat from the insole front part to the toe ball support part, and the toe ball support part bulges downward. 
     
     
         3 . The shoe insole according to  claim 1 , wherein an anterior edge of the toe ball support part extends on a line connecting from a first proximal phalanx to a fifth proximal phalanx of the foot, and a portion of the anterior edge between the first proximal phalanx and a second proximal phalanx is recessed backward. 
     
     
         4 . The shoe insole according to  claim 1 , wherein a trailing edge of the toe ball support part has a central portion in a width direction recessed forward. 
     
     
         5 . The shoe insole according to  claim 1 , wherein a thickness of an outer peripheral part of the toe ball support part gradually decreases. 
     
     
         6 . The shoe insole according to  claim 1 , wherein a cuboid bone support protrusion is arranged so as to overlap the calcaneal anterior-part support protrusion, and the cuboid bone support protrusion including an area from a region corresponding to a cuboid bone of the foot to a region corresponding to a navicular bone of the foot is downwardly inclined toward both left and right side edges to gradually decrease a thickness, and downwardly inclined from the region corresponding to the cuboid bone in a forward-and-backward direction to gradually decrease the thickness, so that the thickness in front-back and left-right radial directions gradually decreases.