Should I log DDR?

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I played Dance Dance Revolution for the first time today. I can only do the easiest level, but I did it for an hour an ended up breaking out in a light sweat during the more difficult songs. I figured playing DDR for a little while would be a good way to get me up off my butt more often, but obviously it's not a substitute for regular exercise. Is it worth logging when I play DDR? If so, how should I log it?

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