Read about the topic we were discussing about on pause training. Pause at the weakest positions then slowly descend. Then reset again. My client was unable to complete a single FULL push-up in November when we began. Today she cranks out 12 full ones without a problem. And she does that for another 4 sets, and all this was via pause-slow descend techniques. She is now beginning to embark onto pull-ups, in which I'm using the same method as well. Pause at the highest position and roll in the shoulders and hold for as long as possible. She does numerous sets of three reps and today is able to do 4 reps of half pull-ups (she pulls up when the arm hits 90 degrees) Slowly we're aiming to make it a full straight arm pull-up.

Your PT should teach you ways to train when you're travelling. Things such as push-ups and burpees, squats and leg raises. All these simple and effective exercises can be used when you're travelling around.