Final answer:
To assess cardiovascular fitness, Brian should choose the VO2 max test, one-mile run test, and push-up test.
Step-by-step explanation:
To assess cardiovascular fitness, Brian should choose the following scientifically based tests:
VO2 max test: This test measures the maximum amount of oxygen the body can use during exercise and is considered the gold standard for assessing cardiovascular fitness.
One-mile run test: This test measures the time it takes for Brian to run a mile and provides an indication of his cardiovascular endurance.
Push-up test: While not specifically assessing cardiovascular fitness, the push-up test can provide an overall indication of upper body strength and muscular endurance.