It's almost funny (in an ironic way), I use my Wii U to exercise some--I used it a lot for 2 years or so, then stopped because I was always working. Now, I am not working at the same place, and have been using it, and seem to have lost 5 lbs or so in the last 2 months. However; the posture issue thing on the Wii U always surprises me. Granted, I am getting close to 50, but when I stand on the scale and try to measure my posture, it says it is not right.
For the Wii U, I have to stand almost like I am a toy in one of those claw machines and I am getting picked as the "winner". It's weird, but it shows that it is a 'correct posture'.