Sprint trainer aid

Abstract

Disclosed is a sprinter training aid which pulls the sprinter forward in an over speed condition, for the purpose of exercise the muscles which pull the leg forward when running, such the hip flexor muscles. Two devices can be used, one pulling the sprinter forward and one pulling the sprinter backward at the start of a run. The backward pulling at the start of the run exercises the sprinter's muscles which are used when going from a stationary position, to a full speed sprint. The device which pulls the sprinter forward would take over when the rearward pulling device shut off, and pull the sprinter to an over speed condition. Include in the device is a cable and cable winder, and a motor, computer, and a wireless connection to a data compilation computer.

1 . A sprinter training device, comprising: a first motor with a first cable winding reel, configured to let out and take in a first cable to maintain a predetermined line tension;
 a first power source for said motor;   a first training device frame comprising a mounting position for said first motor;   a first harness attached to a first end of said cable, for attachment to a sprinter, with said first cable having a second end attached to said first cable winding reel; wherein,   said first motor is configured to pull said sprinter forward toward said first motor by taking in said first cable fast enough to maintain a selected line pressure on said first cable in order to pull said sprinter forward faster than he could otherwise run.   
     
     
         2 . The sprinter training device of  claim 1  which further comprises a computer for inputting a line pressure to be maintained as said sprinter approaches said first motor and first cable winding reel. 
     
     
         3 . The sprinter training device of  claim 2  in which said computer includes a database of sprinters' unassisted speeds for selected distances, and a means for inputting a selected percent of over speed to retract said cable in order to pull said sprinter toward said first motor with a preselected tension on said first cable. 
     
     
         4 . The sprinter training device of  claim 2  in which said computer further comprises a start cycle which takes in said first cable after a start of a run to match the sprinter's acceleration, and gradually increases take up speed until a calculated over speed rate is achieved. 
     
     
         5 . The sprinter training device of  claim 2  which further comprises a first tensioning arm rotatingly anchored to said frame at one end, with said first cable passing over a pulley on a non-anchored end of said tensioning arm, with said tensioning arm movable to maintain first cable tension constant even if said sprinter's forward progress is of uneven speed. 
     
     
         6 . The sprinter training device of  claim 2  which further comprises a first cable meter, for measuring the length of first cable as it is pulled out. 
     
     
         7 . The sprinter trainer device of  claim 6  which further comprises a first cable feed reel for feeding out first cable from said first cable winding reel, with said first cable meter built into said first cable feed reed reel. 
     
     
         8 . A sprinter training device, comprising:
 a first motor with a first cable winding reel, configured to let out and take in a first cable to maintain a predetermined line tension;   a first power source for said first motor;   a first training device frame comprising a mounting position for said first motor and other components;   a first harness attached to a first end of said first cable, for attachment to a sprinter, with said first cable having a second end attached to said first cable winding reel;   a first cable feed reel with a first cable measuring unit for tracking how much cable has been pulled out, said first cable feed reel for feeding out first cable from said first cable winding reel;   a first tensioning arm rotatingly anchored at one end, with said first cable passing over a pulley on a non-anchored end of said first tensioning arm, with said first tensioning arm movable to maintain cable tension constant even if said sprinter's forward progress is of uneven speed;   a computer for inputting a line pressure to be maintained as said sprinter approaches said first motor and first cable winding reel, and for shutting off said first motor when a measured amount of extended first cable has been retracted; wherein,   said first motor is configured for retracting first cable at a rate to maintain a selected line pressure on said first cable in order to pull said sprinter forward faster than he could otherwise run.   
     
     
         9 . The sprinter training device of  claim 8  in which said computer includes a database of sprinters' unassisted speeds for selected distances, and a means for inputting a selected percent of over speed to retract said first cable in order to pull said sprinter toward said first motor with a preselected tension on said first cable. 
     
     
         10 . The sprinter training device of  claim 8  in which said computer further comprises a start cycle which takes in first cable after a start of a run to match the sprinter's acceleration, and gradually increases take up speed and line pressure until the calculated over speed rate is achieved. 
     
     
         11 . The sprinter training device of  claim 2  which further comprises a first extending brace attached to said frame for stabilizing said device against a pull by said cable being retracted by said first motor. 
     
     
         12 . The sprinter training device of  claim 2  in which a start cycle is initiated by said computer sensing slack in said first cable as the sprinter begins to run. 
     
     
         13 . The sprinter training device of  claim 2  in which said cable further comprises an auto release link, for disengaging said cable from said motor upon reaching a selected release tension. 
     
     
         14 . The sprinter training device of  claim 2  which further comprises a second device frame with a second motor and a cable winding reel, configured to let out and take in a second cable to maintain a predetermined line tension, with a power source for said second motor, with a second harness attached to a first end of said second cable, for attachment to said sprinter, with said second cable having a second end attached to said second cable winding reel; wherein,
 said second motor is configured to pull against said sprinters forward motion away from said second motor, by letting out second said cable fast enough to maintain a selected line pressure on said cable in order to present a rearward pull on said sprinter simultaneous to said forward pull from said first cable. 
 
     
     
         15 . The sprinter training device of  claim 14  which further comprises a second computer and a wireless communication with said first computer for coordination of cable retraction and release. 
     
     
         16 . The sprinter training device of  claim 14  which further comprises a second computer for inputting a line pressure to be maintained as said sprinter recedes from said second motor and said second cable winding reel. 
     
     
         17 . The sprinter training device of  claim 1  which further comprises an audible report of the length of cable played out, so a sprinter can move to a measured distance of his choosing. 
     
     
         18 . The sprinter training device of  claim 1  which further comprises a start cycle in which said cable winding reel is delayed from applying the selected cable pressure to said sprinter for a short period of time as the sprinter starts. 
     
     
         19 . The sprinter training device of  claim 14  which further comprises a start cycle in which said cable winding reel and said second cable winding reel are both delayed from applying the selected cable pressure to said sprinter for a short period of time as the sprinter starts. 
     
     
         20 . The sprinter training device of  claim 1  which further comprises a data collection function for saving data from each run cycle, for later analysis of run data. 
     
     
         21 . The sprinter training device of  claim 1  which further comprises a data analysis module with wireless connection to and from the computer to a data analysis module for data collection and analysis. 
     
     
         22 . A sprinter training device, comprising:
 a first motor with a first cable winding reel, configured to let out and take in a first cable to maintain a predetermined line tension;   a first power source for said first motor;   a training device first frame comprising a mounting position for said first motor;   a first harness attached to a first end of said first cable, for attachment to a sprinter, with said first cable having a second end attached to said first cable winding reel;   a computer for inputting a line pressure to be maintained as said sprinter approaches said first motor and first cable winding reel   a second device frame with a second motor and a second cable winding reel, configured to let out and take in a second cable to maintain a predetermined line tension, with a power source for said second motor, with a second harness attached to a first end of said second cable, for attachment to said sprinter, with said second cable having a second end attached to said second cable winding reel; wherein,   said second motor is configured to pull against said sprinters forward motion away from said second motor, by letting out second said cable fast enough to maintain a selected line pressure on said cable in order to present a rearward pull on said sprinter simultaneous to said forward pull from said cable; wherein,   said first motor is configured to pull said sprinter forward toward said motor by taking in said cable fast enough to maintain a selected line pressure on said cable in order to pull said sprinter forward faster than he could otherwise run, and said second motor is configured to pull said sprinter toward said second motor, with said second motor pulling more at the start of said sprint, and said second motor pulling less at the end of said spring.