If you’re looking to get fit in a hurry, you should hit high intensities often. But understand that you are getting fit by only attacking one side of the equation, and there’s a limit to how fit you can ultimately get this way (not to mention a greater risk of injury and overtraining). Complete aerobic fitness happens when you put in the work at low intensities over time and develop the “low end” aerobic adaptations to support the higher intensity work.
Max-testing has long been a staple of football programs at every level. Often, the first order of business every pre-season is to have all the athletes prove their physical ability through a series of movement and lift tests. Athletes prove their hard work over the offseason, demonstrate their various strengths to coaches, and build a common culture of teamwork and dedication. Maxing is something of a tradition, but is it really a valuable tool?