Physical
Exercises the injured parts of your body
Seen most often
Rec
Trains you to play sports while sttill disabled
Seen the least
Ocupational
Trains you how to live and do basic thing (like writing) while disabled
Seen a moderate amount
Both involve exercise
Both work specifically with the injured part of the body
Learn how to do things with your injured body
Teach you how to do different things with your body