PT - What does it mean?

Daddy went to the doctor yesterday because his shoulder still hurts.  The doctor said a few weeks of PT would help.  Well, I was already to go!  I love Puppy Training!  I'd be happy to help Daddy!  After laughing a while, he explained PT meant Pysical Thjerapy - stretching and exercise.  I like to stretch, so I'll still help, I'll be his coach!  Good luck Daddy!