The multi-stage fitness test, also known as the bleep test, beep test, pacer test, or shuttle run test, is used by sports coaches and trainers to estimate an athlete's VO2 Max (maximum oxygen uptake).
The test involves running continuously between two points that are 20 m apart. These runs are synchronised with a pre-recorded audio tape or CD, which plays beeps at set intervals. As the test proceeds, the interval between each successive beep reduces, forcing the athlete to increase velocity over the course of the test, until it is impossible to keep in sync with the recording.
The recording is typically structured into 23 'levels', each of which lasts 60 seconds. Usually, the interval of beeps is calculated as requiring a speed at the start of 8.5 km/h, increasing by 0.5 km/h with each level. The progression from one level to the next is signalled by 3 rapid beeps. The highest level attained before failing to keep up is recorded as the score for that test.
The procedure is designed to measure the maximum endurance of an individual.
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http://www.topendsports.com/testing/beephome.htm
The test will be done straight after exams for B boys!