If you are currently doing very little sprinting and then decide to begin a sprint routine on a regular basis you should improve you conditioning and work capacity but not necessarily your absolute speed. Running is a movement that requires a certain amount of skill if you wish to be great at it. Think about it…would you tell your kid to just go swing the bat in the cage to be a better hitter or throw the ball at the basket to be a better shooter. It would be much more beneficial to correct and perfect their technique with an expert coach before you have them do high volumes of repetitions. Perfect practice makes perfect! This concept holds true with movement training.
Most athletes I train have zero sprint training experience. It would be extremely beneficial to teach these athletes the correct sprinting technique before I tell them to go out there and run. Just like any other sports skill I implement remedial drills to emphasize form and technique. One drill that is great for demonstrating correct sprinting mechanics is the wall drill.

Once the athletes understand this body position and how the legs and arms move in space, then it is appropriate to say, “Go out there and run to get faster.”
You can teach kids to be faster – check out a previous post on this topic – http://blog.matthank.com/2008/10/03/mlb-leader-in-stolen-bases/
Train Hard-Train Smart
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Rather interesting. Has few times re-read for this purpose to remember. Thanks for interesting article. Waiting for trackback