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BMI : Community Message Boards
 AuthorTitle / Message Body
dallason dallason
Fri, Feb 22, 2013 04:02
 Rating: 3.0/5.0
how do we know that we are tracking fat with the bmi? what about the muscle? it does weigh more than fat?

jjswbs2 jjswbs2
Pittsburgh PA
Fri, Feb 22, 2013 09:02
BMI stands for BODY MASS INDEX and is a simple ratio using height and weight.
BMI does NOT take into account BODY COMPOSITION or how much of the total body mass is made up of fat vs. lean tissue (muscle, bone, organs, etc) and water.
BMI is relatively simple to calculate with a straightforward formula using height and weight.
BODY FAT % (BF%) is trickier to accurately measure. There are a variety of methods to try to determine it...
* Girth Measurements (easy to do at home. make sure to find good charts that are specific to age and gender. Accuracy is questionable)
* Skin Fold Calipers'(usually requires a personal trainer)
* Bio-electrical Impedance (use hand held or "stand-on" scale that can be purchased for home use or found at some training centers. Relatively affordable but accuracy is questionable.)
* Hydrostatic (Underwater) Weighing (most accurate but requires specialized facilities and is the most costly option)

some references...

1144 1144
Desert Hot Springs CA
Fri, Feb 22, 2013 11:02
Muscle and fat weigh the same, a pound is a pound. Muscle takes up less room than fat.

LotsaLbs2Lose LotsaLbs2Lose
Fri, Feb 22, 2013 14:02
Agree with JJ &44
But I weigh more cuz I am big boned. LOL

I say if you jiggle when you giggle you may have a bit too much fat.

freakfreeloader freakfreeloader
Edmonton AB
Sat, Feb 23, 2013 09:02
Good info all I never pay attention to fitclicks BMI.

8191 8191
Sat, Feb 23, 2013 10:02
8191 8191
Mon, Feb 25, 2013 16:02
donnasim donnasim
Baton Rouge LA
Tue, Mar 5, 2013 08:03
LOL CutCarb
I'm with you on that one!!

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