Only a problem if you have a sedentary lifestyle where the only jogging you do is jogging your memory and running a bath!
If people were to regularly go for a 30 minute run, 3 times a week, throughout the year (and not just one week before the fitness test) you'd get so used to running that come test time you'll pass effortlessly and getting into the Blue zone is easy.
The thing with running, is start of small and gradually build up the distance so you don't injure yourself. Most running injuries are doing too much too soon, or the wrong trainers for the way your feet roll. Then the more you run, the better you become. Can only make you fitter.
The biggest problem I see with the young guys, is their idea of going to the gym is to lift weights for a big chest and arms vanity. They totally neglect any cardio fitness. Therefore still struggle running the fitness test.