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    #1

    These sentences are a bit confusing to me. Can someone explain. Thanks.

    Taken from http://weightology.net/weightologyweekly/?page_id=95

    Approximately 10-20% of subjects are able to maintain a weight loss of at least 5% after 5 years. The results of other research also look grim; five years after completing structured weight loss programs, people only maintain a 3% weight loss.

    Let us consider a sample set of 100 subjects. The above means that only 10-20 of them are able to maintain their weight loss after 5 years. If yes, what does maintain a fat loss of 5% mean? So assume a guy loses 100 lbs so maintain a fat loss of 5% means he will gain back 95lbs??

    Very confusing for me. Can someone explain? Same issue with the below sentences

    You can see that over 35% of people were successful at maintaining a weight loss of at least 5% for more than a year. On average, this was a 29 pound weight loss. The numbers drop off from there, with only 17% maintaining a 10% weight loss. However, of the people in that 17%, the average weight weight loss maintained was 42 pounds.

  1. MikeNewYork's Avatar
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    #2

    Re: These sentences are a bit confusing to me. Can someone explain. Thanks.

    <<<Let us consider a sample set of 100 subjects. The above means that only 10-20 of them are able to maintain their weight loss after 5 years. If yes, what does maintain a fat loss of 5% mean? So assume a guy loses 100 lbs so maintain a fat loss of 5% means he will gain back 95lbs?>>>

    No you need to look at the graph. It shows that around 65% of people maintained a weight loss of 5% or greater. The leaves 35% who did not. You are confusing "fat" loss with "weight loss". They are not always the same. If a guy lost 100 pounds, he would probably have been in excess of 250 pounds. The hundred pound weight loss would then have been at least 40%. If he regained weight to 5% loss, he would then have regained 87.5 pounds, leaving him at 237.5 pounds, which is 5% less than 250 pounds. If he started out at 300 pounds, the 100 pound weight loss would have been 33.3%.
    If he regained weight to 5% loss, he would then have regained 85 pounds, leaving him at 285 pounds, which is 5% less than 300 pounds.



  2. emsr2d2's Avatar
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    #3

    Re: These sentences are a bit confusing to me. Can someone explain. Thanks.

    I think I need a maths forum!
    Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.

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    #4

    Re: These sentences are a bit confusing to me. Can someone explain. Thanks.

    Quote Originally Posted by MikeNewYork View Post
    <<<Let us consider a sample set of 100 subjects. The above means that only 10-20 of them are able to maintain their weight loss after 5 years. If yes, what does maintain a fat loss of 5% mean? So assume a guy loses 100 lbs so maintain a fat loss of 5% means he will gain back 95lbs?>>>

    No you need to look at the graph. It shows that around 65% of people maintained a weight loss of 5% or greater. The leaves 35% who did not. You are confusing "fat" loss with "weight loss". They are not always the same. If a guy lost 100 pounds, he would probably have been in excess of 250 pounds. The hundred pound weight loss would then have been at least 40%. If he regained weight to 5% loss, he would then have regained 87.5 pounds, leaving him at 237.5 pounds, which is 5% less than 250 pounds. If he started out at 300 pounds, the 100 pound weight loss would have been 33.3%.
    If he regained weight to 5% loss, he would then have regained 85 pounds, leaving him at 285 pounds, which is 5% less than 300 pounds.


    Thanks for the example and application. That study is a complete eye opener to me. So the chances of maintaining a 20% weight loss after 5 years is less than 5%. Its almost like impossible to maintain the weight lost I guess in the long term!

  3. MikeNewYork's Avatar
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    #5

    Re: These sentences are a bit confusing to me. Can someone explain. Thanks.

    It has been proven over and over that diets don't work long term. Long term weight loss requires a lifestyle change, food and exercise.

  4. Roman55's Avatar
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    #6

    Re: These sentences are a bit confusing to me. Can someone explain. Thanks.

    Quote Originally Posted by MikeNewYork View Post
    No you need to look at the graph. It shows that around 65% of people maintained a weight loss of 5% or greater. The leaves 35% who did not.
    I am not a teacher.

    No it doesn't. It shows (and says explicitly in the article) "that over 35% of people were successful at maintaining a weight loss of at least 5% for more than a year."

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