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MISSRUTH Posts: 3,671
3/18/13 8:44 A

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One of the things that I love about Sparkpeople, is that they've already done all the math and figured out all that stuff for me. All I have to do is make sure that the data I have to input (goal weight, goal date, calories I'm going to burn through exercise, etc) is correct. And Spark will tell me my calorie range, plus carbs fat protein range per day etc.

AND I can go back in there and change my data (say for example if I join an exercise class and now I'm burning more calories per week) and Spark will automatically readjust my range.

NIRERIN Posts: 11,986
3/18/13 8:35 A

yes, you are doing the math totally wrong. while it's possible for your weight and your your bmr to be just one added zero away, it's a rare enough occurrence that you should not be relying on it. it's kind of like if your shoe size is the same number as the circumference [in inches] of your wrist. sure it's a happy coincidence, but it doesn't really have anything to do with anything.
use the link jen provided you with to use an actual formula [yep, you actually have to do math, not just add a zero here or there] to get where you are. because your height and age factor in in addition to your weight.
in other words, if you are 5'6" and 30, then your bmr is 1654. if you were 20, your bmr would be 1704. if you were 50, you're down to 1556.
if you are 5' tall and 30, your bmr would be 1559. at 20 you'd be around 1608 and at 50 you'd be 1461.
if you were 6' tall you would be 1750 at 30, 1799 at 20 and 1651 at 50.

if you really don't like math, just head to your start page, make sure your goals are accurate for where you are and save. then head in to your calories burned, make sure that number is accurate for what you do in a week and save. your calorie ranges will be tailored to where you are with no math required.

SLIMMERKIWI SparkPoints: (135,633)
Fitness Minutes: (33,050)
Posts: 21,785
3/18/13 6:25 A

I'm not sure about the formula, but if you accurately put your height/weight and the amount and type of exercise, plus the time frame you want to lose by, then SP will set a range for you automatically. 2lb per week is doable, but the reality is you might find it hard to keep up at that rate, apart from the initial few weeks.

Good luck, and I hope that someone is able to answer your specific question!
Kris


SPARK_COACH_JEN Posts: 56,463
3/18/13 6:24 A

SparkPeople takes all of this into account during your program setup, so you really don't have to go through all of the math on your own. Here's a link that shows you how we calcuate your calorie range:

www.sparkpeople.com/resource/calorie_calcu
lation101.asp


Hope that helps,

Coach Jen

CAREBEARLOVER1 SparkPoints: (3)
Fitness Minutes: (0)
Posts: 1
3/18/13 4:26 A

Okay so I am confused by this calorie deficit thing. I found this formula. Am I doing this totally wrong?

I'm taking out the example and adding my own information.

1. add a zero to your body weight (202 +0 = 2020)
2. add 20% for normal daily activity (+404). 2020 + 404 = 2,424 calories per day. This is how many calories you need a day to maintain your current weight.
3. To lose weight, subtract 500 calories a day (by eating 500 calories less or by burning 500 calories with your workout). 2,424 500 = 1,924 calories you need per day to lose 1 lb per week.

Now this is where I get confused.

I want to lose 2 pounds a week. So I would change the 500 to 1000.

That would take my formula to 2,424 - 1000 = 1424.

I do work out and burn about 800 calories. Does that mean my calorie limit should be going up so I don't go into starvation mode or should it stay the same?

Sorry this is so long, I know I'm over thinking this completely lol. Thanks for the explanation in advance.

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