The 15 metre shuttle run is maximal and progressive, i.e. the test gets harder as it progresses, and you work to exhaustion. The test is run to and fro along a 15 metre course as and when indicated by the electronic bleep. You will start at one end of the gymnasium and you will run to the end line of the course. You should arrive at the other end of the course when the bleep sounds, turn 180 degrees and run back to the other end of the gym, again in time with the bleep. If you arrive at the line before the bleep has sounded you should stop, turn and wait for the bleep to sound before you start running. You should then adjust your running speed to ensure you reach the line when the bleep sounds.
If you fail to contact the line when the bleep sounds you will be given a first warning. If you fail to contact the next consecutive line on the bleep, you will be given a second warning. If you fail to contact the third consecutive line on the bleep your test will end.
However, if after the first or second warning you contact the next line on the bleep, your warnings are cancelled and you continue with your test. The warnings are there to let you know that you have fallen off the pace, and that if you wish to continue, you must increase your running speed.
You are not allowed to run around the line in a circle, if you do, you will be warned. If you continue to run in circles you will be called out of the test. You are not allowed to leave either end before the bleep has sounded. If you do so you will be warned. If you continue to leave early you will be called out of the test.
You are required to reach level 5 shuttle 4 to pass the endurance test. If you fail to reach level 5 shuttle 4 you would have failed the test as a whole.