Athletic Trainer or Athletic Trainer?

As we have wrestled with using "Athletic Trainer" as our professional title, have we actually moved away from a common definition of what defines an athletic trainer? What is the commonality that still unites us as a profession?

An example made by Anthony Maritado on LinkedIn about Physical Therapy:

"Words are important. 

When does “physical therapy” cease to be physical therapy?

Physical therapists have broadened their knowledge base in so many different ways that much of what I see posted on social media looks less and less like what I would call physical therapy. 

Is there still a true definition of “physical therapy” or is it just whatever a physical therapist does is now called physical therapy because it was performed by a physical therapist?"

Even though athletic training is expanding very quickly into different settings, are the irradiations deriving away from the common meaning of what an athletic trainer is?