Sprint training exercise system and method

DETAILED DESCRIPTION I claim: 1.
An exercise system for restraining a moving animal comprising: (a) two spaced-apart railings defining an exercise track therebetween; (b) two restraining means, each slidably carried by one of said two spaced-apart railings for providing a net restraining force; and (c) harness means for restraining an animal moving on said exercise track, and attached to said two restraining means and adapted to be worn by an animal so that the net restraining force is conveyed to a moving animal wearing said harness means on said exercise track.
2.
The system as defined in claim 1 further comprising aligning means for aligning the net restraining force generally parallel to the center line of said two spaced-apart railings.
3.
The system as defined in claim 2 wherein said aligning means comprises: detection means for sensing the forces conveyed to an animal wearing said harness means that are perpendicular to said center line; and regulation means for regulating each of said two restraining means responsive to the sensed perpendicular forces so that the net restraining force is aligned generally parallel to said center line.
4.
The system as defined in claim 2 wherein said aligning means comprises control means for controlling the magnitude of the net restraining force.
5.
The system as defined in claim 4 wherein said control means comprises force adjusting means for adjusting the magnitude of the net restraining force during movement of an animal wearing said harness means on said exercise track.
6.
The system as defined in claim 1 further comprising control means for controlling the magnitude of the net restraining force.
7.
The system as defined in claim 6 wherein said control means comprises means for adjusting each of said two restraining means so that the magnitude of the net restraining force is controlled.
8.
The system as defined in claim 6 wherein said control means comprises force adjusting means for adjusting the magnitude of the net restraining force during animal exercise on said exercise track