20 yard shuttle
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The 20-yard shuttle, also simply called the short shuttle, is a test performed by American football athletes at the NFL combine. It is primarily run to evaluate the quickness and change-of-direction ability of players by scouts, particularly for the NFL Draft but also for collegiate recruiting. While not as highly regarded a test as the 40 yard dash, it is still an important barometer used by NFL personnel to compare players.
[edit] The Drill
The name "20-yard shuttle" is derived from the total yards that athletes travel during the drill. First they start in the middle of a 10 yard distance with one hand touching the ground. The athlete then pushes off their dominant leg in the opposite direction 5 yards. After covering this distance, as quick as possible they reverse direction and go 10 yards the exact opposite way. Finally they reverse directions one last time ending the drill at the point where they started. Athletes are timed for this whole procedure.[1]