The idea for the Wii Workout hit Mickey DeLorenzo in late November as he stood in his South Philly living room, virtually boxing his fiancee.

They were playing one of those new Nintendo systems that allow you to control the game by actually waving your hands. (Movement of the remotes directs the on-screen action.)

"We just went at each other, throwing punches," he said by phone. "Ten minutes later, we're dripping with sweat. We couldn't even breathe. I'm thinking, 'Oh, my God - this thing is working us out pretty good.' "

What would happen, he wondered, if he got his exercise solely on the Wii?

This was the spark that led DeLorenzo, 25, a computer programmer, to begin a six-week routine of daily half-hour workouts on the Wii's boxing, baseball and tennis games. (He avoided golf, which he deemed not worth the time.)

The experiment ended Monday. The results can be followed on his blog, called He also posts a video there that shows how one works the Wii. The site, which is independent from the manufacturer, also acknowledges some of the Wii mishaps people have suffered. The only damage DeLorenzo chronicles is to his laptop, which once caught a remote that slipped from his hand and flew across the room.

He tracked his weight, body mass index, calories burned per session, body fat percentage, and heart rate, as well as something called "Wii fitness age" - some with devices sent to him for free after a New York Times column mentioned his experiment in passing last month.

The idea, DeLorenzo says, was to keep to his normal habits, with the exception of the 30-minute workout. "I ate Christmas dinner," he says. "I had drinks. This was my only exercise - I didn't jog or bike. I just walked around the city."

Go to his site to check out the intimate details, but the headline is that his waist melted from 341/2 inches to 31 inches. "I might actually have to have a belt on," he says.

He lost a total of nine pounds off the 181 pounds he has weighed for the last two years. Before and after photos (he's pretty dedicated to this project; there are charts and a video, too) show a man who has lost his love handles.

And when he began the experiment, the machine told him he had a Wii age of about 46. Six weeks later, he played like a 20-year-old.

So what's next? More of the same, says the man who got his first Nintendo system at age 5 on Christmas 1986. He's addicted.

"I didn't do it yesterday," he says. "I kind of felt guilty, like I'd missed the gym. I play video games normally. I will keep something up."

There's been a healthy side-effect. His 42-year-old father was impressed enough that he went out and bought a Wii for himself.

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