In your opinion, what are the principles of the profession of personal training?

It is important to define what a "priniciple" is before I respond to what are the principles of personal training?

A principle is: a rule or belief governing one's personal behavior; a rule or standard especially of good behavior; an acceptable or professed rule or action or conduct.

How this applies to personal training in my opinion has everything to do with knowing the code of ethics of your certifying body. If you don't know your certifying body's code of ethics, that one must ask what what principles or ethics of the profession of personal training are you guided by?

Ethics, by the way, is defined as--a set of principles of right conduct. In short, principles and ethics are the same thing. That being said, the above question can be rephrased as what ethics govern the profession of personal training?

Of interest are portions of the American Council on Exercise Code of Ethics which state:

1. Provide safe and effective instruction.
2. Provide equal and fair treatment to all clients.
3. Stay up-to-date on the latest health and fitness research and understand its practical application.
4. Maintain current CPR certification and knowledge of first-aid services.
5.Comply with all applicable business, employment, and intellectual property laws.
6. Maintain the confidentiality of all client information
7. Refer clients to more qualified health or medical professionals when appropriate
8. Uphold and enhance public appreciation and trust for the health and fitness industry.
9. Establish and maintain clear professional boundaries.

Hope this helps.