This is something that probably everyone has done at one time or another. Many coaches uses this as a training technique and you probably even performed this in school. The test will measure agility by determining a persons a ability to accelerate, decelerate, and switch directions (multiple times).

Setting up the Shuttle Run:
Set up 3 cones exactly 5 yards (or meters) apart in a straight line. The athlete Enter information in left column; select appropriate menus. Click "Calculate". After a warm up, the subject runs as fast a possible for 12 minutes. Tester records distance covered (miles, yards, kilometers, meters). Evaluates cardiovascular fitness for adults.