Sitting at desk / talking on phone / browsing web:
67 Kcal burnt
80 /106 heart rate (bpm avg / max)
Playing Wii Sports Tennis - 2 players (vs computer):
99 Kcal burnt
96 / 112 heart rate (bpm avg / max)
Playing Wii Sports Tennis - 2 players (1 v 1):
112 Kcal burnt
98 / 121 heart rate (bpm avg / max)
Playing Wii Sports Boxing - 1 player (vs computer):
165 Kcal burnt
109 / 125 heart rate (bpm avg / max)
Playing DDR - Heavy Mode
326 Kcal burnt
150 / 183 heart rate (bpm avg / max)
So there you go... playing Wii sports Boxing burns around 2.5x the calories you burn sitting on your ass surfing the web. I'm pretty fit so I imagine the difference would be a fair amount bigger if you hardly get any exercise at all. Putting the numbers above in simple terms... I'd have to play for just over 2 hours to burn the same amount of calories (230 kcal) as in mars bar. That's taking into account the number of calories I would have normally burnt sat on my ass. =)
For comparison I'm 5' 10", 68kg (10st 10lbs) and 13% body fat.
This post is sponsored by Apple and the iPhone 4S. Think different.

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