There's lots of information out there about what makes a good personal trainer and signs to look out for if your one-on-one sessions are not up to par. But few of them seem to talk about whether you actually need a personal trainer in the first place, or are you following a fad? Trainers don't come cheap so if you want to get in shape and think that a trainer might be the best way to go, consider whether you'd benefit from a personalized exercise program.

