Quesiton about calories burned

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I attend an 30 minute very intense boot camp, 3 times a week. When I started using MFP I recorded it as 30 minutes of circuit training. At that time, the website would calculate me as burning 274 calories for 30 minutes. Now I am 25 lbs lighter and burn 300 calories in 30 minutes. Why is that? I thought the lighter you are, the less you burn...please let me know

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  • marianne_s
    marianne_s Posts: 986 Member
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    The best way to know for sure, is to wear a heart rate monitor.