Final answer:
A max test measures an individual's maximum capacity in an activity, while a submax test measures their performance at a submaximal level.
Step-by-step explanation:
A max test, also known as a maximal test, is a fitness test that measures an individual's maximum capacity or limits in a specific activity or exercise.
On the other hand, a submax test, also known as a submaximal test, is a fitness test that measures an individual's performance at a submaximal level, which is below their maximum effort.
For example, in a max test, a person may try to lift the heaviest weight they can handle. In a submax test, they may lift a lighter weight for a certain number of repetitions or a specific duration.