University of Tennessee running back Jalen Hurd runs a 4.47 40-Yard Dash, according to nfldraftscout.com.
But, as shown in the video below, he can run 19.5 mph on an incline treadmill.
What he's doing is referred to as overspeed training. It teaches his legs to cycle faster during a sprint to increase his top-end sprint speed. He holds on to the handles because the speed and incline combination would otherwise be too fast for him—hence overspeed.
Hurd's running style combines strength and finesse. He runs with great force, rolling through any player in his path; however, he also has the kind of natural speed that allows him to break open into the backfield for long gains.
If Hurd can keep his speed up, LSU's Leonard Fournette and Stanford's Christian McCaffrey may not be the only running backs taken near the top of next year's NFL Draft.
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