Proprioceptive element with adjustable height

Abstract

A proprioceptive element including a base for attachment to a bottom surface of a sole of a shoe, the base including a flange nut with a first set of threads formed thereon, a height adjustment ring including a threaded portion which mates with the first set of threads of the flange nut of the base, and a bulbous cap element having a curved outer contour and which is attached to the height adjustment ring, wherein turning of the height adjustment ring on the flange nut of the base adjusts the height of the bulbous cap element with respect to the base.

1 . An article comprising:
 a proprioceptive element comprising a base for attachment to a bottom surface of a sole of a shoe, said base comprising a flange nut with a first set of threads formed thereon;   a height adjustment ring comprising a threaded portion which mates with the first set of threads of said flange nut of said base; and   a bulbous cap element having a curved outer contour and which is attached to said height adjustment ring, wherein turning of said height adjustment ring on the flange nut of said base adjusts the height of said bulbous cap element with respect to said base.   
     
     
         2 . The article according to  claim 1 , wherein the flange nut of said base is formed with a second set of threads, and the proprioceptive element further comprises a locking ring comprising threads which mate with the second set of threads of the flange nut, wherein said locking ring is arranged for tightening against said height adjustment ring. 
     
     
         3 . The article according to  claim 1 , wherein said height adjustment ring comprises an outer rim that has markings at different places on its perimeter. 
     
     
         4 . The article according to  claim 3 , wherein said markings indicate a direction for turning said height adjustment ring to lower and raise said bulbous cap element with respect to said base. 
     
     
         5 . The article according to  claim 1 , wherein said bulbous cap element is attached to a cap support element which is attached to said height adjustment ring. 
     
     
         6 . The article according to  claim 1 , wherein an inner perimeter of the threaded portion of said height adjustment ring is formed with a plurality of axial grooves, spaced from one another around the inner perimeter. 
     
     
         7 . The article according to  claim 6 , further comprising a peg disposed in a channel formed in said base, said peg being arranged to click against said axial grooves when the height adjustment ring is turned. 
     
     
         8 . The article according to  claim 1 , comprising a set of bulbous cap elements having different weights. 
     
     
         9 . The article according to  claim 1 , comprising a set of bulbous cap elements having different elasticity.