Calories Burned Question

tltincher
tltincher Posts: 107 Member
in Fitness and Exercise
I found this formula for calories burned during exercise using your average heart rate. I used it to calculate my burn for 40 minutes of "Butt Bible" and it gave me a burn of 11 calories a minute = 440 calories for the entire workout. Let me tell you, I sweat and HURT during this exercise and my heart rate is up. So, what do you all think? Here is the formula...if anyone has a Fitbit or anything else that calculates your burn could you see if its comparable? Thanks!!

[(weight x 0.0574) + (age x 0.074) + (average heart rate x 0.4472) -- 20.4022] / 4.184

Replies

  • tltincher
    tltincher Posts: 107 Member
    Anybody?
  • tltincher
    tltincher Posts: 107 Member
    How do you get your posts responded to lol??
  • hannahcaringal
    hannahcaringal Posts: 15
    where did you get this formula?
  • tltincher
    tltincher Posts: 107 Member
    Thank you for responding:) I looked around and found it on livefit.
  • Linbo93
    Linbo93 Posts: 229 Member
    I have a BodyMedia Fit which does not gather Heart Rate data, so unfortunately I cannot help you with this question. But you generally get more views if people comment, so I'm commenting to help bump the topic for you. Plus, I'd be interested in the answer!
  • ritasice21
    ritasice21 Posts: 200 Member
    I gave up on calculating burns when even with a HRM my burns were so different. I spent way to much time trying to figure out my actual burns and then never wanted to eat it all back anyway. Now I do TDEE minus 30% and do not worry about it. For me, this works and I am losing every week. That being said, everyone if different. I know this does not address your actual question, but it is my take on things.
  • jacksonpt
    jacksonpt Posts: 10,413 Member
    I found this formula for calories burned during exercise using your average heart rate. I used it to calculate my burn for 40 minutes of "Butt Bible" and it gave me a burn of 11 calories a minute = 440 calories for the entire workout. Let me tell you, I sweat and HURT during this exercise and my heart rate is up. So, what do you all think? Here is the formula...if anyone has a Fitbit or anything else that calculates your burn could you see if its comparable? Thanks!!

    [(weight x 0.0574) + (age x 0.074) + (average heart rate x 0.4472) -- 20.4022] / 4.184

    I have no idea where that came from. Is it better than trowing darts at random numbers for your HR? Yep. Is it at all accurate? Who the hell knows - without resting and max HRs in the equation, probably not.. And whatever accuracy there is, is probably going to vary person to person and exercise to exercise.

    Everything is an estimation. At the end of the day, the only real variables when it comes to calorie burns are workload and weight. Weight we know, that's easy enough. Workload is a different story. Some cardio machines (ex: treadmill) have a known/generally accepted workload. Most don't. Everything else is trying to approximate workload. Good HRMs will use resting and max HRs to estimate "effort" (for lack of a better word) to approximate workload.

    But it's all just assumptions and estimations.

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