What is the main purpose of the 12-minute run fitness test?

The primary purpose of the 12-minute run fitness test is to estimate VO2 max, which is a key indicator of cardiovascular endurance and aerobic fitness. VO2 max represents the maximum volume of oxygen that an individual can utilize during intense exercise, and it plays a crucial role in determining an athlete's stamina and overall fitness level.

During the 12-minute run, participants run for as long and as far as possible within a twelve-minute period. The distance covered is then used to estimate the individual's VO2 max using established equations. This test is beneficial because it’s simple, requires minimal equipment, and can be administered to large groups, making it a practical choice in both clinical and athletic settings.

In contrast, other options such as measuring flexibility, assessing muscular strength, or evaluating body composition do not align with the goals of the 12-minute run. Flexibility requires different measurement tools and protocols, muscular strength involves specific resistance exercises, and body composition assessment often utilizes methods like skinfold measurements or bioelectrical impedance, none of which are captured by the 12-minute run test.