We are pleased to announce that as of March 4, 2025, an updated Rich Text Editor has been introduced in the MyFitnessPal Community. To learn more about the changes, please click here. We look forward to sharing this new feature with you!

I know it's been asked a hundred times, but...

yoginimary
yoginimary Posts: 6,789 Member
edited September 2024 in Health and Weight Loss
I just wore my HRM for 7 hours of normal activity, mfp/email time, cleaning house, grocery shopping, eating lunch, etc. I couldn't wear it all day and night because it was driving me crazy.

So, I burned 920 calories. If we take that as an average = 131 calories an hour and figure 15 hours awake = 1965 calories, maybe another 500 sleeping for 9 hours (yes, I know you all hate me now for getting that much sleep). That means I get 1965 calories per day for a pound a week lost (not count exercise)?

Seems like an awful lot for a 5'3" 156 lb person. MFP says for a lightly active person at my weight I should get 1380 + exercise.

Thoughts?

Replies

  • yoginimary
    yoginimary Posts: 6,789 Member
    I just wore my HRM for 7 hours of normal activity, mfp/email time, cleaning house, grocery shopping, eating lunch, etc. I couldn't wear it all day and night because it was driving me crazy.

    So, I burned 920 calories. If we take that as an average = 131 calories an hour and figure 15 hours awake = 1965 calories, maybe another 500 sleeping for 9 hours (yes, I know you all hate me now for getting that much sleep). That means I get 1965 calories per day for a pound a week lost (not count exercise)?

    Seems like an awful lot for a 5'3" 156 lb person. MFP says for a lightly active person at my weight I should get 1380 + exercise.

    Thoughts?
  • lotusfromthemud
    lotusfromthemud Posts: 5,335 Member
    I really think that MFP is set low for most people. I wonder if the formulas that figure out how many calories a day should adjust based on body fat % (vs. muscle which burns more at rest). I think that there are people in this world who are super-duper sedentary, and maybe that's what these figures run off of.

    I wore my HRM on a very slow day, and it said I should be at minimum 1700 with no activity. (137ish and 5'6") (I was coming down off of a busy week, and the most I moved was changing the channel from "E true hollywood story" to "mummies are fascinating!" shows on the discovery channel.

    I think this whole craziness boils down to us learning how to figure out when we're hungry and when we're full. Bleeeaaaargh. . .I suck at that.

    I do know that what MFP says is "maintenance" for me seems to be my magic "last five pounds" number. I think maybe a good experiment would be adding a hundred or so to what MFP says, and then keep adjusting.

    I wish this was more scientific. In my science-fiction geek fantasy, I get some sort of non-invasive body scan, and then a machine makes me fantastic tasting food in exactly the proper proportions to make me buff. Sigh.

    anyways, that's my 2 cents worth. :flowerforyou:
  • sr2000
    sr2000 Posts: 230 Member
    Wouldn't that mean that at 1965 you would maintain you weight? So if you cut back 500 cal at day to 1465 you would lose a pound a week? Or am I misunderstanding? I need to try wearing my hrm on a slow day and into the night, I have a feeling I'll rip the chest strap off sometime in the middle of the night too.
  • yoginimary
    yoginimary Posts: 6,789 Member
    Wouldn't that mean that at 1965 you would maintain you weight? So if you cut back 500 cal at day to 1465 you would lose a pound a week? Or am I misunderstanding? I need to try wearing my hrm on a slow day and into the night, I have a feeling I'll rip the chest strap off sometime in the middle of the night too.

    That would be without the 9 hours of sleeping calories (I figured 500) - so my 1965 would be my lb a week.
  • banks1850
    banks1850 Posts: 3,475 Member
    well mary, sounds like you wore it for the busiest part of your day, I would imagine you would probably want to knock some calories off for the hours that you aren't quite so busy or average it out a little lower. I did your numbers and it came out to around 2250 for a RMR (maintenance calories) which sounds about right considering if you knock say 10 calories an hour off your estimate (because I imagine 2 or 3 of those night time hours are less active, I don't mean sleeping hours, just the time after everything settles down.). Also, looking at your schedule, if that is an average day, I would call you moderately active, not lightly. Now if you don't clean the house every day, and go grocery shopping, then I guess you would want to knock off a few calories anyway.
  • cp005e
    cp005e Posts: 1,495 Member
    In my science-fiction geek fantasy, I get some sort of non-invasive body scan, and then a machine makes me fantastic tasting food in exactly the proper proportions to make me buff. Sigh.

    Put me on the waiting list for that one! :laugh:
  • flabbyguy
    flabbyguy Posts: 22
    call me stupid.but whats an hrm,,,,,,,,,,,
  • ssparks
    ssparks Posts: 1
    Heart Rate Monitor
  • flabbyguy
    flabbyguy Posts: 22
    So a hearth rate monitor calculates how many calories you burn>Are they available off the shelf of from your doctor.Thanks
  • banks1850
    banks1850 Posts: 3,475 Member
    So a hearth rate monitor calculates how many calories you burn>Are they available off the shelf of from your doctor.Thanks

    you can get em at any local sporting goods store. Polar makes a great one.

    I love my F6

    www.polarusa.com

    look under the general fitness catagory in the polar store to see the F series watches. You can also find them on Ebay or Amazon, just search for polar F4 or polar F6 or F11 (depending on what extras you want with the HRM)
  • flabbyguy
    flabbyguy Posts: 22
    Thanks Banks i checked out the site.I will definitely want one of those...
  • astridfeline
    astridfeline Posts: 1,200 Member

    I wish this was more scientific. In my science-fiction geek fantasy, I get some sort of non-invasive body scan, and then a machine makes me fantastic tasting food in exactly the proper proportions to make me buff. Sigh.

    anyways, that's my 2 cents worth. :flowerforyou:

    I dream of Star Trek too!!!! :blushing:
  • edyta
    edyta Posts: 258

    I wish this was more scientific. In my science-fiction geek fantasy, I get some sort of non-invasive body scan, and then a machine makes me fantastic tasting food in exactly the proper proportions to make me buff. Sigh.

    anyways, that's my 2 cents worth. :flowerforyou:

    I dream of Star Trek too!!!! :blushing:

    I was thinking about the same!!
    Anyone want to earn a fortune inventing and selling that stuff??? :smile:
This discussion has been closed.