Welcome to the site. The search button is your friend here. There are a lot of posts in the Fitness and Nutrition forum that address various diet and workout protocols, injury prevention, stretching, and damn near anything else you could want to know to start to begin to get yourself physically prepared for a shot at being a Ranger. I would suggest reading through those, all of those, before you start any new threads with questions of how to prep for RASP. Good luck.