It's now time to assess aerobic capacity with the Fitnessgram 20-meter Pacer Test. So who's ready to get active? The goal is to complete as many laps as possible, by running across the line before you hear each sound. *beep* The running speed will slowly go faster each time you hear this signal. *higher beep* Here's the catch though! The lap doesn't count if your body doesn't cross the line before you hear this sound. *beep* Do your best! Have fun! Are you ready! Get set! Go!