Wii Fit is exercise if you want to get anything substantial from it. Meaning, unless your heart rate is elevated and you're sweating, you probably aren't getting much out of it beyond improved sense of balance and maybe additional flexibility, depending upon which exercises you're regularly doing.
That's probably the biggest shortcoming of Wii Fit: there are no specific workout programs (the blank-exercise-goes-with-blank-exercise recommendations don't count). Everything is just thrown out on a grid, to be slowly unlocked the more time you log, until everything is available, much like a video game.
Say you want to work on an aerobic centric program to improve your cardio level; pick and do a bunch of aerobic exercises for at least 20 minutes a day. There are no formal programs or individual recommendations. You want to work on improving muscular strength, pick and do a bunch of MS exercises for 20 minutes a day. There's no direction, and the results gauged are almost purely dependent upon the one way Wii Fit has to measure changes in your level of fitness: BMI/weight. Other than that, it's increase your reps as more reps become available, and try to push your individual exercise scores as close to 100% as possible.
Early on, the exercise choices are extremely limited and sparse. I think you need to put in close to 10 hours before everything is unlocked, assuming you do all the exercises rather than just focus on the ones that interest you.
Make no mistake, with regular use and dedication and a plan of your own device, it is very possible to see results. I personally trimmed off about 6 lbs of fat as measured by changes in body fat percentage with a biometric scale, not Wii Fit, just by using the exercises in Wii Fit as an experiment. That was about 30 hours worth of "Wii Fit credits" over a period of about 60 days. That's for a guy whose exercise for the last 7-8 years was U.S. Army physical fitness training.
So yes, you can see results, even if you're already in decent shape. You'll just have to dial up the intensity and duration of work out sessions, which can become inefficient compared to a gym, or home gym based workout program. It still has its shortcomings and limitations, and may be a poor substitute for a more dedicated exercise program depending upon individual goals.









