The FitnessGram pacer™ test is a multistage aerobic capacity test that progressively gets more difficult as it continues, The 20 meter pacer test will begin in 30 seconds.Line up at the start.The running speed starts slowly,but gets faster every minute. After you here this signal. [BEEP] A single lap should be completed each time you here this sound [DING].Remember to run in a straight line,And run as long possible. If you fail a second time before the ding your test will be over.