How is cardiovascular endurance typically assessed?

Cardiovascular endurance is generally assessed through activities that measure the efficiency of the heart, lungs, and muscles during prolonged physical activity. The 1.5-mile run and the VO2 max test are both standard methods used to determine an individual's cardiovascular fitness level.

The 1.5-mile run is a practical test that measures how quickly a person can cover the distance, indicating their aerobic capacity and endurance. This performance correlates with the overall efficiency of the cardiovascular system in delivering oxygen to the muscles during sustained exercise.

The VO2 max test is a more scientific approach that quantifies the maximum amount of oxygen an individual can utilize during intense exercise. A higher VO2 max indicates better cardiovascular endurance and aerobic fitness.

In contrast, body fat measurement, flexibility tests, and weightlifting max tests do not directly assess cardiovascular endurance. Body fat measurement helps determine body composition, flexibility tests assess the range of motion, and weightlifting max tests evaluate muscular strength, none of which provide insight into cardiovascular fitness. Therefore, the methods mentioned in the question specifically target cardiovascular endurance, making it the correct choice.