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Thread: Bioelectrical impedance analysis vs Whole-body air displacement plethysmography

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    VegasBody's Avatar
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    Bioelectrical impedance analysis vs Whole-body air displacement plethysmography

    i want to see if anybody has knowledge about the two body fat test above
    i did both within a week the Bioelectrical impedance analysis said i have 11.5 % body fat
    the whole-body air displacement plethysmography came out with 21% body fat
    wtf thats double which one is right?????
    Thanx

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    Docd187123 is offline Banned
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    At 11.5% you should be able to see abs or very close to seeing them. At 21% you'd not be anywhere close, have bigger love handles etc. Which sounds closer to where you are or out up a pic?

    BIA is one of the least accurate methods of measuring body comp. whole body air displacement plethysmography (aka BodPod) is one of the most accurate methods (DEXA scans are arguably a bit better than BodPods). It's either the bod pod had a bad reading or you messed up the test somehow or if it's accurate it just shows you how garbage BIA can be...

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    How should we know?
    Put up a pic.

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    fvck bio-impedance...

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    Click image for larger version. 

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    ok see if this pic would work

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    Docd187123 is offline Banned
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    Quote Originally Posted by VegasBody View Post
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    You're not 11.5%....

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    I'd go with BODPOD between the two. I'd put you around 18-20% IMO.

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    Check these pictures and you decide.

    http://forums.steroid.com/nutrition-...men-women.html

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    Quote Originally Posted by slfmade View Post
    I'd go with BODPOD between the two. I'd put you around 18-20% IMO.
    Agreed.

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    thank you
    i had figured about 20% myself
    i hold most in the middle unfortunately
    thanx for your help

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    Quote Originally Posted by VegasBody View Post
    thank you
    i had figured about 20% myself
    i hold most in the middle unfortunately
    thanx for your help
    We all do!

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    so if my diet is in check
    2000 cal diet with 50 25 25 1 hr boot camp a day and 1 hr weight training
    what would be an intelligent estimate to have that cut in half ETA?

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    Quote Originally Posted by VegasBody View Post
    so if my diet is in check
    2000 cal diet with 50 25 25 1 hr boot camp a day and 1 hr weight training
    what would be an intelligent estimate to have that cut in half ETA?
    It would be impossible to know without stats. It also depends greatly on the individual. As a general rule of thumb. If you subtract 500 calories a day from your TDEE, you'll lose 1/lb a week - (mostly bodyfat if protein is high enough and the rest of you're diet is in check), however, this is vary rarely actually the case. As your metabolic rate slows the fat loss slows as well so you need to keep adjusting accordingly. There's different methods for breaks, refeeds, etc that can keep a slowing metabolic rate in check, but that would take too much time to explain. Also the lower bodyfat you get, the harder and slower it is to come off. Below 15% gets tough, below 12% is hard, and below 10% you'll think is impossible....but it's not.
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