Cybex machine burns more calories?

United States
January 27, 2011 4:38pm CST
I have recently signed up to go to a gym, and they have a new cardio machine made by Cybex. It's a mix between an elliptical and stairmaster, but it burns about 1/3 more calories than any other cardio machine. Can anyone tell me how this is possible b/c I feel like I'm exerting less energy on it. Thanks!
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