1. The two key principles of the FITT Principle are and progression. 2. Match up the terms with the correct definitions.
Group of answer choices
refers to increasing how often you exercise
refers to increasing the difficulty of an exercise.
(or duration) refers to increasing the length of each training session.
refers to the kind of activity a person chooses for each area of his or her training program.

A) time
B) type
C) intensity
D) frequency