National Personal Trainer Certification

personal trainer
A personal trainer is a person who helps people exercise. The scope of practice for a personal trainer is to enhance the components of fitness for the general, healthy population.
A person who creates custom individualized diet and exercise portfolios for the client.
Individual that may or may not hold any certification or degree in the related field of strength and conditioning. This person is commonly found in a private gym setting. (Former players, weight lifters, want-a-be coaches)

certification
documentation: confirmation that some fact or statement is true through the use of documentary evidence
the act of certifying or bestowing a franchise on
certificate: a document attesting to the truth of certain stated facts

national
Owned, controlled, or financially supported by the federal government
Of or relating to a nation; common to or characteristic of a whole nation
a person who owes allegiance to that nation; "a monarch has a duty to his subjects"
of or relating to or belonging to a nation or country; "national hero"; "national anthem"; "a national landmark"
limited to or in the interests of a particular nation; "national interests"; "isolationism is a strictly national policy"