Math question about earning extra calories by exercise

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Replies

  • RonSwanson66
    RonSwanson66 Posts: 1,150 Member
    so if I'm 147lbs and i exercise daily so use the 15 I should be eating 2,205!!! so this is to maintain that weight? .. and 1,705 to lose 1lb a week, and 1,205 to lose 2lb a week?

    Usually women should use a lower multiplier than men, so deduct 150cal from each of those. (ie use the 14 multiplier).

    So you would have around 2050 to maintain, 1550 to lose 1lb/week, and 1050 to lose 2.
    but I want to lose another 18lbs and be 129lbs, someone said a theory to eat the amount of calories that matches the weight you want to be or something?

    They're using 10*target bodyweight. So 1290 cal, which fits well with the numbers above.

    so 129 x 15 = 1,935 to maintain that weight? MFP has me at 1200?? which I was following.. however I found when I got my monthly cravings and was eating more that week.. once the water came off I'd find I had lost another 3-4lbs besides the water coming back off and get my biggest loss that week.. the other weeks at 1200 sometimes nothing.. if lucky 1-2lb.. usually 1!

    MFP Does not factor in exercise. Adding your weekly activity to MFP's numbers should put you at right around 14.
  • erickirb
    erickirb Posts: 12,294 Member
    OP, assuming your estimate of calories burned during exercise is accurate, you are right in that you should back out the cals burned that you would have burned had you not worked out. So if your maintenance cals are 2400 that would be 100 cals/hour or 1.67 cals/minute.
  • BobbyClerici
    BobbyClerici Posts: 813 Member
    Don't be confused; just experiment with the numbers, track your weight and find that calorie base line that is your break even daily intake to maintain weight.

    For me it's 2700.

    So, that's what I can eat and gain no weight.
    And if I do 60 minutes of jogging @ 700 calories, then I can eat those extra 700 calories.

    Check out my food diary - I'm doing just that, and I've lost over 60 lbs.
    These starvation diets I see around here - COUNT ME OUT!
  • fireman300
    fireman300 Posts: 38 Member
    I look at it this way......eat them all back, dont eat any back, eat some back, deduct body calories from workout calories......to each their own...if it is working for you then keep doing what your doing. If it is not working then make an adjustment one way or the other. MFP is a tool, a guideline to help us on our journey to a healthier us. It is not a Law, or a bible to be followed exactly. So like I said, if it is working for you then stick with it and enjoy your results!!
  • shakybabe
    shakybabe Posts: 1,578 Member
    so if I'm 147lbs and i exercise daily so use the 15 I should be eating 2,205!!! so this is to maintain that weight? .. and 1,705 to lose 1lb a week, and 1,205 to lose 2lb a week?

    Usually women should use a lower multiplier than men, so deduct 150cal from each of those. (ie use the 14 multiplier).

    So you would have around 2050 to maintain, 1550 to lose 1lb/week, and 1050 to lose 2.
    but I want to lose another 18lbs and be 129lbs, someone said a theory to eat the amount of calories that matches the weight you want to be or something?

    They're using 10*target bodyweight. So 1290 cal, which fits well with the numbers above.

    so 129 x 15 = 1,935 to maintain that weight? MFP has me at 1200?? which I was following.. however I found when I got my monthly cravings and was eating more that week.. once the water came off I'd find I had lost another 3-4lbs besides the water coming back off and get my biggest loss that week.. the other weeks at 1200 sometimes nothing.. if lucky 1-2lb.. usually 1!

    MFP Does not factor in exercise. Adding your weekly activity to MFP's numbers should put you at right around 14.


    Thank you! :happy:
  • ElizabethRoad
    ElizabethRoad Posts: 5,138 Member
    OP, assuming your estimate of calories burned during exercise is accurate, you are right in that you should back out the cals burned that you would have burned had you not worked out. So if your maintenance cals are 2400 that would be 100 cals/hour or 1.67 cals/minute.
    Wouldn't you use BMR instead of maintenance calories for this calculation? Maintenance includes your regular "walking around doing stuff" calorie expenditure, but when you're exercising, you aren't doing other stuff at the same time. You are just doing your regular bodily functions + exercise.
  • erickirb
    erickirb Posts: 12,294 Member
    OP, assuming your estimate of calories burned during exercise is accurate, you are right in that you should back out the cals burned that you would have burned had you not worked out. So if your maintenance cals are 2400 that would be 100 cals/hour or 1.67 cals/minute.
    Wouldn't you use BMR instead of maintenance calories for this calculation? Maintenance includes your regular "walking around doing stuff" calorie expenditure, but when you're exercising, you aren't doing other stuff at the same time. You are just doing your regular bodily functions + exercise.

    Your above question answered itself in a round about way. If you didn't workout for the hour would you be in a coma? or sitting or walking or eating? If you would be doing anything other than sleeping the proper figure to use is maintenance calories not BMR.
  • neanderthin
    neanderthin Posts: 10,222 Member
    Yes, you deduct the 100 calories from the extra calories burned through exercise, basically the true calories burned would be 300.
  • dendra7
    dendra7 Posts: 113 Member
    Really the logging is about being accountable to yourself- not specific numbers. You'll never get it precisely right and I can get way too obsessive about it. Log what you eat, monitor your results and adjust as needed. Every body is different and will not respond in exactly the same way. Besides, it's a lifestyle...if we make it too painful or you won't stick to it. And that's really the point...to STICK TO IT and listen to YOUR body.
  • steffy1724
    steffy1724 Posts: 24 Member
    Just exercise daily, eat smaller portions, drink tons of water and be POSITIVE! Your on a journey to weighloss. Sure there are alot of mathematical errors in counting calories, this is just a guide. :D
  • traceracer
    traceracer Posts: 303 Member
    Just exercise daily, eat smaller portions, drink tons of water and be POSITIVE! Your on a journey to weighloss. Sure there are alot of mathematical errors in counting calories, this is just a guide. :D
    Amen Sista!!
  • lin7604
    lin7604 Posts: 2,951 Member
    Really the logging is about being accountable to yourself- not specific numbers. You'll never get it precisely right and I can get way too obsessive about it. Log what you eat, monitor your results and adjust as needed. Every body is different and will not respond in exactly the same way. Besides, it's a lifestyle...if we make it too painful or you won't stick to it. And that's really the point...to STICK TO IT and listen to YOUR body.

    ok so since i have only lost 2 lbs since Oct 22nd. I have been doing 45 min cardio 5 days a week up till last week when i started the 30 ds. so i am doing something every day now.. what am i doing wrong, why can't i lose a inch or any more weight? I am trying hard to stay at my 1200 calories a day and eat my exercise calories back but am not seeing any results. All this exercising and trying to lose weight is new to me, i have never had extra weight on me before to try to lose... so i am such a newbie it's not funny.....
  • Rae6503
    Rae6503 Posts: 6,294 Member
    Really the logging is about being accountable to yourself- not specific numbers. You'll never get it precisely right and I can get way too obsessive about it. Log what you eat, monitor your results and adjust as needed. Every body is different and will not respond in exactly the same way. Besides, it's a lifestyle...if we make it too painful or you won't stick to it. And that's really the point...to STICK TO IT and listen to YOUR body.

    ok so since i have only lost 2 lbs since Oct 22nd. I have been doing 45 min cardio 5 days a week up till last week when i started the 30 ds. so i am doing something every day now.. what am i doing wrong, why can't i lose a inch or any more weight? I am trying hard to stay at my 1200 calories a day and eat my exercise calories back but am not seeing any results. All this exercising and trying to lose weight is new to me, i have never had extra weight on me before to try to lose... so i am such a newbie it's not funny.....

    You only have 7lbs to lose? You might see better results setting your goal to a half pound a week, and yeah expect slow losses. When we don't have much to lose, it's harder to convince your body to give it up. It's actually "unnatural" to be as lean as we like. The body likes to hold fat reserves in case of upcoming famine.
  • Tunia85
    Tunia85 Posts: 212 Member
    I think the main thing is that people who don't count calories are not actually aware of how many calories the food they eat has and overeat. MFP is exceptional in providing a diet/calorie database. It's not perfect, but gets us to watch what we eat. For the most part, I also try to not eat back all of the calories I've burned (I leave a deficit of around 200) and I feel like my metabolism is on fire lately ever since I started!
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