Ran on a Treadmill for 45 seconds.

This one will really tire you out. The best place I found to get it is from the main menu select "practice", then choose the avatar you want to use, then for the difficulty select "tryouts". It will then ask you to choose your course, select "Wipeout Zone Tryouts". Once you get on a treadmill that is asking you to duck under the bars just keep running and you will stay in one place as long as you dont crouch under the bars. You need to make sure you are running at full speed because if your character starts walking/jogging the time will restart. Run in place as fast as you can until it unlocks.