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Can someone explain how this was calculated?

  • 26-12-2013 9:37pm
    #1
    Username99
    Closed Accounts Posts: 235 ✭✭


    I read the following informative post on Boards:

    http://www.boards.ie/vbulletin/showpost.php?p=50956807&postcount=4

    The following is an extract from it:

    3) Then estimate your daily exercise expenditure by working out how much exercise you do a week and divide by seven for an average daily value:
    Weekly I do 4 hours of weights = approx 1536 cals
    2 hours low intensity cardio = 600 cals
    2 hours high intensity cario = 1200 cals
    Total = 3336 / 7 = 477 cals

    So add that to my daily energy needs.. 2176 + 477 = 2653

    My Question:

    How did poster calculate that 4 hours of weights is approx 1536 cals etc...

    Does this depend on the type of exercise, weight being lifted etc...

    ???


Comments

  • #2
    Stench Blossoms
    Closed Accounts Posts: 9,390 ✭✭✭Stench Blossoms


    Probably used a heart rate monitor.


  • #3
    Username99
    Closed Accounts Posts: 235 ✭✭Username99


    Thanks for the reply, but as I am a complete idiot can you explain to me how this would have been achieved. Will the heart rate monitor tell her how many calories were expended within a certain time interval and if so does she just note the time she starts an exercise and the time she finishes and then calculate the average calories expended whist lifting?


  • #4
    Stench Blossoms
    Closed Accounts Posts: 9,390 ✭✭✭Stench Blossoms


    Yeh so you put the heart rate monitor on and basically hit start when you start working out and end when you are finished and it will tell you how many calories you burned.

    They aren't 100% accurate but they are more accurate than online calculators.

    I know myself that I burn approx 450 calories for an hour of lifting.


  • #5
    Username99
    Closed Accounts Posts: 235 ✭✭Username99


    Ok, I have a Garmin forerunner must get the heart rate monitor for it though. Thanks


  • #6
    hypersonic
    Registered Users, Registered Users 2 Posts: 320 ✭✭hypersonic


    from what I know of heart rate monitors the figure it gives you includes your "basic metabolic rate" calories so what you see on the HR monitor is not additional calories you can eat. :(
    so the average Joe needs to subtract 50-100calls per hour from the number give to get their additional cals.
    I'd be delighted if someone would be kind enough to prove me wrong about this!


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  • #7
    Stench Blossoms
    Closed Accounts Posts: 9,390 ✭✭✭Stench Blossoms


    Yes that's correct hypersonic.

    HRM are a rough guide. Just because it says you burned 380 calories doesn't mean you can go eat 380 calories.


  • #8
    stephen1990
    Registered Users, Registered Users 2 Posts: 73 ✭✭stephen1990


    hypersonic wrote: »
    from what I know of heart rate monitors the figure it gives you includes your "basic metabolic rate" calories so what you see on the HR monitor is not additional calories you can eat. :(
    so the average Joe needs to subtract 50-100calls per hour from the number give to get their additional cals.
    I'd be delighted if someone would be kind enough to prove me wrong about this!

    I'm not sure if that's true.

    I recently got a hear rate monitor and am wearing it all day today just to see how much calories I burn during a normal work day.

    It says I'm at 120 now and I've been awake since 7.

    Say my BMR is 1800, if the heart rate monitor took into account my BMR then it would show a far greater number for calories burned over the last 7 hours....somewhere closer to 645 (120+ 1800/24*7)


  • #9
    Davei141
    Registered Users, Registered Users 2 Posts: 4,541 ✭✭✭Davei141


    stephen1990 wrote: »
    I'm not sure if that's true.

    I recently got a hear rate monitor and am wearing it all day today just to see how much calories I burn during a normal work day.

    It says I'm at 120 now and I've been awake since 7.

    Say my BMR is 1800, if the heart rate monitor took into account my BMR then it would show a far greater number for calories burned over the last 7 hours....somewhere closer to 645 (120+ 1800/24*7)

    Unless you have been in a coma since 7 I would say that reading of 120 calories is wrong. HRM do take into account your BMR.


  • #10
    stephen1990
    Registered Users, Registered Users 2 Posts: 73 ✭✭stephen1990


    Davei141 wrote: »
    Unless you have been in a coma since 7 I would say that reading of 120 calories is wrong. HRM do take into account your BMR.

    I'm using the Polar app and I just set it to walking this morning and thats all the calories it says I've burned....I'm presuming that is just extra calories burned and not taking into account my BMR, that's all I was pointing out


  • #11
    traco
    Registered Users, Registered Users 2 Posts: 1,707 ✭✭✭traco


    They are good for your HR and getting you familiar with what areas you are training within. In my opinion though the cals are not accurate and for that reason I adjust food based on on how I'm performing training wise and how clothes fit over a period of weeks.

    Here's another piece I posted in a similar thread about the one I have http://www.boards.ie/vbulletin/showpost.php?p=83703985&postcount=7


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