Explain the purpose of fitness tests and provide two examples of specific fitness tests.

The purpose of a fitness test is to make sure you are able to perform workouts at a normal rate an example would be the mile run

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)