What I don't understand is how everyone says if you are trying to build muscle you shouldn't be doing more than 2-3 cardio workouts a week, otherwise you start to lose muscle. Looking at AFL players, it doesn't quite make sense. They do lots of gym, and a hell of a lot of running, and somehow they don't lose muscle. Look at guys like nick reiwolt and ben brown from north melbourne. They are absolute endurance machines, and are somehow very bulky at the same time. So, does lots of cardio really burn away muscle? Or is it all just a myth...