Training Device

Abstract

A training device includes a sack into which weights may be inserted, and a tether. A method using a training device includes attaching the device to a person's leg, placing the sack on the ground, moving forward along the ground, and pulling the sack along the ground.

What is claimed is: 
     
         1 . A training device, the device comprising:
 a sack;   a tether attached to said sack;   a leg attachment component attached to said tether, for attaching said device to a person's leg.   
     
     
         2 . The training device of  claim 1 , said sack being of substantially a cylindrical form. 
     
     
         3 . The training device of  claim 1 , said sack for containing one or more weights. 
     
     
         4 . The training device of  claim 3 , said sack comprising one or more compartments for containing said one or more weights. 
     
     
         5 . The training device of  claim 3 , said sack further comprising an opening for receiving said one or more weights to be inserted inside of said sack. 
     
     
         6 . The training device of  claim 5 , said opening extending longitudinally along the sack from the front of the sack to the rear of the sack. 
     
     
         7 . The training device of  claim 5 , said opening disposed at the front of the sack. 
     
     
         8 . The training device of  claim 7 , said sack further comprising an elastic band disposed at said opening, for permitting said one or more weights to be inserted inside of said sack, and for retaining said one or more weights inside of said sack. 
     
     
         9 . The training device of  claim 1 , said sack having a weight of at least three pounds. 
     
     
         10 . The training device of  claim 1 , said sack comprised at least partially of a friction-providing material. 
     
     
         11 . The training device of  claim 10 , said friction-providing material capable of providing friction sufficient for keeping the velocity of said sack relatively constant when pulled along the ground. 
     
     
         12 . The training device of  claim 10 , said friction-providing material being rubberized polyester mesh. 
     
     
         13 . The training device of  claim 1 , wherein said leg attachment component is capable of detaching from the person's leg when a threshold force is exceeded. 
     
     
         14 . The training device of  claim 1 , said tether being made of stretchable material. 
     
     
         15 . A training device, the device comprising:
 a sack;   a tether attachable to said sack;   a leg attachment component attachable to said tether, for attaching said device to a person's leg.   
     
     
         16 . The training device of  claim 15 , said sack for containing one or more weights. 
     
     
         17 . The training device of  claim 16 , said sack further comprising an opening for receiving said one or more weights to be inserted inside of said sack. 
     
     
         18 . The training device of  claim 15 , said sack comprised at least partially of a friction-providing material capable of providing friction sufficient for keeping the velocity of said sack relatively constant when pulled along the ground. 
     
     
         19 . The training device of  claim 18 , said friction-providing material being rubberized polyester mesh. 
     
     
         20 . A method of using the training device of  claim 1 , the method comprising:
 attaching said tether to a person's leg;   placing said sack on the ground;   moving forward along the ground;   pulling said sack along the ground.