Wii and DDR show the trend!
It's good to see the recognition that DDR has given exergaming in the raising of awareness that active video games can burn calories. BUT, there is more to come.
As you can see from the chart Nintendo Wii and DDR (Dance Mat) are indeed good exercise, something that we published in 2006, so it's not really news to us. What I'm waiting for is the researchers to pick up on Gamercize, with it's whopping calorie burn of over three times Nintendo Wii.
But that's not the full story, Gamercize is configurable, so if you can't kick out 650+ calories per hour, then you can tune it to your level. In the case of the Power Stepper you can bring back the effort to DDR levels, and with the Endurance Cycle, back down to Wii/Eyetoy levels.
It's important that you (or your personal trainer) sets the level of effort required, because everyone is different, and everyone should be allowed to achieve at their current ability and given the chance to improve.