Resistance training handles for forearm strength and endurance

Abstract

Resistance training handles for forearm strength and endurance. The resistance training handles include a shaft, a handle, and a coupler. The handle is rotationally mounted to the shaft. The coupler is secured to the shaft and configured to selectively couple to a resistance source. In some examples, the resistance training handle further comprises a second handle rotationally mounted to the shaft in a position spaced from the first handle. In certain examples with two handles, the spacing between the handles is selected to fall within a standard range of spacing between handles of motorcycles used for motocross races.

1 . A resistance training handle, comprising:
 a shaft;   a handle rotationally mounted to the shaft; and   a coupler secured to the shaft and configured to selectively couple to a resistance source.   
     
     
         2 . The resistance training handle of  claim 1 , wherein:
 the handle defines a first handle; and   the resistance training handle further comprises a second handle rotationally mounted to the shaft in a position spaced from the first handle.   
     
     
         3 . The resistance training handle of  claim 2 , wherein the spacing between the first handle and the second handle is selected to fall within a standard range of spacing between handles of motorcycles used for motocross races. 
     
     
         4 . The resistance training handle of  claim 1 , wherein the handle and the shaft are coaxial. 
     
     
         5 . The resistance training handle of  claim 1 , wherein the handle includes a handgrip. 
     
     
         6 . The resistance training handle of  claim 5 , wherein:
 the handgrip includes an inner surface; and   the inner surface of the handgrip is smooth.   
     
     
         7 . The resistance training handle of  claim 6 , wherein inner surface of the handgrip defines a bearing surface. 
     
     
         8 . The resistance training handle of  claim 1 , wherein the handle is mounted proximate to a terminal end of the shaft. 
     
     
         9 . The resistance training handle of  claim 8 , wherein handle includes an endcap mounted to the terminal end of the shaft. 
     
     
         10 . The resistance training handle of  claim 9 , wherein:
 the shaft includes a hollow bore; and   the endcap inserts into the hollow bore of the shaft.   
     
     
         11 . The resistance training handle of  claim 10 , wherein:
 the endcap includes a flange;   the flange has a diameter larger than a corresponding diameter of the handgrip to restrict the handgrip from moving axially beyond the endcap to retain the handgrip on the shaft.   
     
     
         12 . The resistance training handle of  claim 11 , wherein handle includes a collar operatively mounted to the shaft at a medial position spaced from the flange. 
     
     
         13 . The resistance training handle of  claim 12 , wherein the spacing between the collar and the flange is selected to correspond with a length of the handgrip. 
     
     
         14 . The resistance training handle of  claim 13 , wherein the endcap and the collar cooperate to retain the handgrip between them while allowing the handgrip to rotate around the shaft. 
     
     
         15 . The resistance training handle of  claim 12 , wherein the collar includes:
 a ring member disposed around the shaft; and   an adjustment mechanism configured to selectively reduce an inner diameter of the ring member.   
     
     
         16 . The resistance training handle of  claim 15 , wherein the adjustment mechanism includes a threaded shaft extending through threaded bores defined in the ring member. 
     
     
         17 . The resistance training handle of  claim 12 , wherein the handle includes an annular spacer disposed between the collar and the shaft. 
     
     
         18 . The resistance training handle of  claim 1 , wherein the coupler includes a strap. 
     
     
         19 . The resistance training handle of  claim 18 , wherein the coupler includes a hook-and-loop fastener disposed on the strap. 
     
     
         20 . The resistance training handle of  claim 1 , wherein:
 the coupler defines a first coupler;   the resistance training handle further comprises a second coupler secured to the shaft and axially spaced from the first coupler; and   the first coupler and the second coupler are each offset an equal distance from a middle of the shaft on opposite sides of the middle of the shaft.