Looks like I'm going into the academy in March, I've been bulking for a show in May so I am in horrible shape cardio-wise. I haven't done cardio for years. In the academy I will be running 3-5 miles daily. What is the best way to start training? I don't want to jump right in and get shin splints and risk injury etc., should I start off with intervals? Oh and I don't need 20 posts from people who don't know what they are talking about, I believe there was a girl on here that ran races and shit, anyone else have some educated advice I would appreciate it, thanks.