Nebraska’s defensive backs coach was watching film of his cornerbacks one day over the summer when he noticed an important detail.
His guys were changing directions — transitioning from their backpedal to a full sprint, for example — but it was taking too many steps to reach top speed. Assistant coach Brian Stewart wanted to know why.
So he called Dr. Jack Ransone, director of the Nebraska Athletic Performance Laboratory.
Soon, Stewart and some defensive backs were in the state-of-the-art training center inside the east grandstand of Memorial Stadium. The players were cutting and running on the artificial turf as motion-capture cameras tracked their movements and force plates installed under the surface measured their power output. They got the results right away.
And indeed Stewart was right. The way the cornerbacks were planting their feet limited their ability to burst — a flaw Stewart eventually realized was an unintentional consequence of drills he had used to imprint other unrelated techniques.