fitness vidioes queshtion

tdawg1989
tdawg1989 Posts: 2
edited January 24 in Fitness and Exercise
i have billy blanks boot camp infurno it says can burn up to 800 calaries but not shure how many i really burn i did 30 min and my shirt and body was soaked in sweat so how can i tell how many calaries i burn when doing exersize vidioes

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