Define and explain the FITT principles and the PROS principles.

Define and explain the FITT principles and the PROS principles. In your explanation, be sure to address why these principles are so important in exercise design and how they are utilized.
Requirements:
300 words
APA format (proper references and in-text citation) At least two references
DUE BY 11/6/2015 AT 1 P.M. PST!!!