The study has a good point, only you all seem to miss it.
The researchers didn't try to find out if using a console 4 minutes a day will make you slim. They wanted to find out if buying a WiiFit makes you slim. Out there we have lots of people who hate any kind of sport, but hate being overweight too. Such people often think "If there was any easy and interesting sport, I'd do it, and then I'd loose weight". So when they hear "video game that requires you to move a lot", they buy it in the hope that this is THE product which will get them to exercise and consequently their lose fat. So the contribution of this study to human knowledge isn't that "a little exercise isn't enough to make you lose weight", it is "the WiiFit isn't exciting enough to motivate a couch potato to exercise regularly". Which is quite an interesting result, e.g. if you happen to be a health insurance company and some obese insuree wants you to pay for his new toy.
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Study is alright, you misunderstood its goal
The study has a good point, only you all seem to miss it.
The researchers didn't try to find out if using a console 4 minutes a day will make you slim. They wanted to find out if buying a WiiFit makes you slim. Out there we have lots of people who hate any kind of sport, but hate being overweight too. Such people often think "If there was any easy and interesting sport, I'd do it, and then I'd loose weight". So when they hear "video game that requires you to move a lot", they buy it in the hope that this is THE product which will get them to exercise and consequently their lose fat. So the contribution of this study to human knowledge isn't that "a little exercise isn't enough to make you lose weight", it is "the WiiFit isn't exciting enough to motivate a couch potato to exercise regularly". Which is quite an interesting result, e.g. if you happen to be a health insurance company and some obese insuree wants you to pay for his new toy.