I'm in the military and I need to able to run. Sometimes short and fast, but sometimes longer endurance runs. Back in February, I was in some classes where I didn't go to work for PT in the morning. I didn't take it upon myself to run, but I was on Test E. When I got back to the unit 15 pounds heavier, I couldn't run for crap and messed up my leg doing so. It's better now, and I'm trying to get to a good point in my running. Do you think it's possible to at least maintain cardio while bulking?