Is my calorie burn accurate

cookieinbk82
cookieinbk82 Posts: 320 Member
edited November 15 in Health and Weight Loss
I have been going to at least one spin class each day for this whole week. The first few classes that I went to my heart rate monitor said that I burned 600 calories and my heart rate was about 170-180 the whole time. However, according to my heart rate monitor I only burned 460 calories in this past two classes and my heart rate is 160-170 throughout the class. Why is that happening?

Replies

  • CMB1979
    CMB1979 Posts: 588 Member
    All things being equal, as you become more aerobic conditioned, your heart rate will naturally decrease because your vascular system has adapted and gotten better at handling it.
  • tjcalley
    tjcalley Posts: 163 Member
    Maybe you need to add more resistance. I take that class a couple of days a week and thats what I do
  • JenMc14
    JenMc14 Posts: 2,389 Member
    You're getting better at it, your body is more efficient, so you don't need to exert as much energy.
  • brianpperkins
    brianpperkins Posts: 6,124 Member
    One does not become 24% more efficient in a matter of a few weeks. HR alone to determine burn from a spin class is useless. There is no accounting for resistance .. for mechanical work done.
  • ILiftHeavyAcrylics
    ILiftHeavyAcrylics Posts: 27,732 Member
    I don't think your body adapts to exercise that quickly.

    I do think you're probably tired from several days of intense exercise in a row. I don't spin but I wear an activity tracker and even if I think I'm doing all the same things when I'm tired I get lower burns. Maybe it's time for a rest day.
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