400 cals in 20 minutes?!?

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Replies

  • jennaworksout
    jennaworksout Posts: 1,739 Member
    I don't have an HRM, and don't trust the numbers on the machines at the gym, I always take off 200 or 300 calories burned at the end of my workout ( depending onhow long I am on a machine) usually from 20 - 40 min a time , although my heartrate on the machine says its up to 176 at times, I t could be possible, but I doubt it...I really should get a HRM lol
  • juliekaiser1988
    juliekaiser1988 Posts: 604 Member
    Ask Santa for a HRM for Christmas :)
  • cal_73
    cal_73 Posts: 77
    I don't think it's THAT high, just a little. On the elliptical I do 30 minutes at ~152 bpm then 30 minutes at ~ 135 bpm - this is usually level 17/25 then 12/25. Ellipitcal usually says ~500 calories first 30 min then ~400 second 30. HRM says ~525 first 30 and ~475 second 30.
  • jennaworksout
    jennaworksout Posts: 1,739 Member
    Ask Santa for a HRM for Christmas :)

    I think I just might :wink:
  • wellbert
    wellbert Posts: 3,924 Member
    I doubt olympic athletes burn 400 cals in 20 minutes.
  • axialmeow
    axialmeow Posts: 382 Member
    Way off.
  • megsmom2
    megsmom2 Posts: 2,362 Member
    That does sound high. I use an elliptical and on the one I use, at moderate sustained effort, I burn about 300 calories in a bit over half an hour. I suppose your numbers are possible ....but seems unlikely.
  • BackTatJIM
    BackTatJIM Posts: 1,140 Member
    sounds high to me, elliptical at my gym are normally about 100cals to high for 30 min. sessions compared to my hrm ... personally I average about 10 cals a min.
  • RobynLB
    RobynLB Posts: 617 Member
    I'd be surprised if it was much over 200 in 20 minutes... even if you're huffing and puffing and sweating...
  • weloveourboys
    weloveourboys Posts: 133 Member
    No, it does not sound right. Way too high.
  • NBSfit
    NBSfit Posts: 44 Member
    I have a post about that :)

    http://nbsfit.com/uncategorized/equipment-estimated-calories-versus-actual-calories-burned-how-to-calculate-calories-burned-during-exercise/
  • CalJur
    CalJur Posts: 627 Member
    If you are pushing hard and keeping the heart rate up this is very doable. I can burn this amount in 20 minutes on a treadmill. Great job.
  • rileysowner
    rileysowner Posts: 8,329 Member
    From what I remember of tests done comparing the machine readout to the actual calories burned during the exercise time on the machine in a lab (you know all the sensors and breathing apparatus hooked up while the study subjects were exercising on the machine, ellipticals were one of the worst for over reporting. I would not trust that number especially since it does not have all your vital statistics (age, height, weight, sex) to help get that number closer.
  • chubbygirl253
    chubbygirl253 Posts: 1,309 Member
    it most likely is wrong. mfp tells me I burn 1163 calories in an hr on the elliptical (I'm 285 lbs) but according to my hrm its around 420 in an hr. big difference. the machine gives me a number somewhere in the middle but its still off by quite a bit. go with your hrm
  • jennaworksout
    jennaworksout Posts: 1,739 Member
    Depending on your age, weight , sex, it varies....someone 225 pounds will burn way more than me in 20 min doing the same workout. Athletes could defenitely burn 400 cal in 20 min, its possible for alot of people.
  • testease
    testease Posts: 220
    Depending on your age, weight , sex, it varies....someone 225 pounds will burn way more than me in 20 min doing the same workout. Athletes could defenitely burn 400 cal in 20 min, its possible for alot of people.

    An untrained person of 225lbs could not keep up the intensity to burn 400 calories in 20 minutes.
  • CaLaurie
    CaLaurie Posts: 178
    :sad: My elliptical tells me a bit over 400 in 20 min. My HRM has it a bit under 200. Sorry! :sad:
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