Before revision: The multi-stage fitness test (MSFT), also known as the beep test, bleep test, PACER (Progressive Aerobic Cardiovascular Endurance Run), PACER test, FitnessGram PACER test, or the 20 m Shuttle Run Test (20 m SRT) , is a running test used to estimate an athlete's aerobic capacity (VO2 max).
After revision: The multi-stage fitness test (MSFT), also known as the beep test, bleep test, PACER test (progressive aerobic cardiovascular endurance run), or the 20m shuttle run test , is a running test used to estimate an athlete's aerobic capacity (VO2 max).