Combination exercise device

Abstract

Apparatuses and methods are presented herein for an exercise apparatus that functions as a floor slider and balance disc. The apparatus comprises a disc comprising a convex side and a flat side. The disc is coupled to a foam annulus that is removably attached to the flat side of the disc. The foam annulus comprises a side surface between a radially inner surface and a radially outer surface. At least one coupling element arranged on the side surface of the foam annulus. At least one complementary coupling element arranged on the flat side of the disc comprises and configured to interface with the at least one coupling element on the side surface of the foam annulus.

What is claimed is: 
     
         1 . An apparatus comprising:
 a disc comprising a convex side and a flat side; and   a foam annulus that is removably attached to the flat side.   
     
     
         2 . The apparatus of  claim 1 , wherein:
 an inner radius of the foam annulus is at least 25 millimeters wide and up to 75 millimeters wide; and   the foam annulus is configured to receive an end of a training stick or a portion of a human foot.   
     
     
         3 . The apparatus of  claim 1 , wherein an outer radius of the foam annulus is between 75% and 100% of an outer radius of the second flat side of the disc. 
     
     
         4 . The apparatus of  claim 1 , wherein the foam annulus comprises a side surface between a radially inner surface and a radially outer surface, the apparatus further comprising at least one coupling element arranged on the side surface of the foam annulus. 
     
     
         5 . The apparatus of  claim 4 , further comprising at least one complementary coupling element arranged on the flat side of the disc and configured to interface with the at least one coupling element on the side surface of the foam annulus. 
     
     
         6 . The apparatus of  claim 5 , wherein:
 the at least one coupling element comprises a plurality of coupling elements;   the at least one complementary coupling element comprises a plurality of complementary coupling elements.   
     
     
         7 . The apparatus of  claim 6 , wherein:
 the plurality of coupling elements are spaced at equal distances around a surface of the foam annulus; and   the plurality of complementary coupling elements are spaced at equal distances around the flat side of the disc.   
     
     
         8 . The apparatus of  claim 7 , wherein:
 a center surface area of the flat side of the disc corresponds to a surface area, defined by the radially inner surface of the foam annulus, that remains exposed; and   the plurality of complementary coupling elements are radially spaced away from the center surface area.   
     
     
         9 . The apparatus of  claim 5 , wherein:
 the at least one coupling element comprises one or more of a hooked surface or a looped surface; and   the at least one complementary coupling element comprises one or more of a hooked surface or a looped surface that complements a surface of the at least one coupling element.   
     
     
         10 . The apparatus of  claim 5 , wherein:
 the at least one coupling element comprises an extension; and   the at least one complementary coupling element comprises one or more of a recess or slot configured to receive and secure the extension.   
     
     
         11 . The apparatus of  claim 5 , wherein:
 the at least one coupling element comprises a fastener; and   the at least one complementary coupling element comprises a threaded hole configured to receive the fastener.   
     
     
         12 . The apparatus of  claim 5 , wherein the at least one coupling element and the at least one complementary coupling element when interfacing with each other comprise one or more of a snap fastener assembly or snap fastener interface. 
     
     
         13 . The apparatus of  claim 1 , wherein the flat side comprises a surface roughness of a low enough magnitude to enable the flat side to be slid horizontally over a carpeted surface when a vertical load corresponding to a weight of an adult human is applied to the flat side. 
     
     
         14 . The apparatus of  claim 13 , wherein the convex side comprises at least one feature indicating a position to align one or more appendages to enable controlled sliding of the flat side over a surface. 
     
     
         15 . The apparatus of  claim 13 , wherein the flat side comprises a cloth surface suitable for sliding the flat side over a surface comprised of one or more of wood, tile, laminate, veneer, or stone. 
     
     
         16 . The apparatus of  claim 1 , wherein the disc is comprised of one or more of acetal, thermoplastic, or plastic. 
     
     
         17 . The apparatus of  claim 1 , wherein an apex of the convex side is axially arranged at least 3.5 mm from a radially centered point of the flat side. 
     
     
         18 . The apparatus of  claim 1 , wherein:
 an axial distance between an apex of the convex side and a radially centered point of the flat side is based on a target support weight for a convex profile of the first convex side; and   a height profile of the convex side is structured to limit mechanical deformation of the convex side when the target support weight is applied at or around the apex of the convex side.   
     
     
         19 . A method of assembly of an apparatus, comprising:
 securing at least one coupling element to a flat side of a disc, wherein the disc comprises a convex side and is comprised of molded plastic; and   coupling a foam annulus to the at least one coupling element using at least one complementary coupling element arranged on a side surface of the foam annulus.   
     
     
         20 . The method of  claim 19 , wherein a coefficient of friction of the convex side permits horizontal sliding of the convex side over a carpeted surface when an angled load is applied to the flat side.