mapmyfitness and HRM overestimating calorie burn

christi921
christi921 Posts: 21
edited January 2 in Fitness and Exercise
I just purchased a polar h7 HRM and used it in conjunction with mapmyfitness for the first time tonight at my powerlates class. I was shocked to see that mapmyfitness had my calorie burn at 874 calories for 46 minutes in class. My average heart rate was 102 and my max 138. I have all my personal info entered correctly. Anyone have any ideas on why the burn is so high?

Replies

  • Bakkasan
    Bakkasan Posts: 1,027 Member
    What did your HRM say? All exercise sites use generic numbers, HRM is a little more specific. But unless you run with a vo2 analyzer you are just guessing as best you can.
  • christi921
    christi921 Posts: 21
    I was using MMF on my phone as the "monitor'. I just used the chest strap sensor. I know that most sites are only a guestimate but the number is over double what is should be.
  • avir8
    avir8 Posts: 671 Member
    HRM is a closer approximation but if you use it consistently you can gauge the measurements in terms of a more personalized measurment, but I don't like how MMF counts exercise calories, although it's not too far off.
  • christi921
    christi921 Posts: 21
    But shouldn't it be calculation my calories burned from what it is reading from the heart rate sensor? MMF recognizes the sensor, it shows my heart rate as I am exercising, but there is no way I burned that many calories.
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