1200m Shuttle Test (1.2SRT)

The 1200m Shuttle Test is an aerobic fitness test involving running to-and-from a start line to 20, 40 and 60-m marks, 5 times without a break (Kelly & Wood, 2013). The test is also known as the Bronco test. The score from this test can be used to calculate maximal aerobic speed.

Equation for athletes with a heavy body mass (approx. 100 kg):

MAS (m/s) = 1200 / (time in seconds – 29)

Equation for athletes with a light body mass:

MAS (m/s) = 1200 / (time in seconds – 20.3)


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