Zumba core xbox anyone?

Ok, posted before...

If you zumba core on xbox 360, do you wear a heart rate monitor and are the calories burned correct? I have a HRM that does not work (bowflex and taking it back) and it says I burn 917 calories when I do a 62 minutes on Xbox 360... the hrm says I burned .04 calories... LOL. Stupid thing, so I know thats now right.

Anyone know if this is correct when using a hrm as a back up ?

Thanks

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