so, i am 5'4 and around 119-121 pounds (haven;t weighed for a week or two) and the handheld thing said my fat percentage was 7% and my bmi is 17. is it me or is that ridiculously low? that seems sooo inaccurate. i mean, i'm in shape and stuff, do alot of cardio and watch what i eat, but wtf?
i asked the dude administering the test how accurate the handheld bmi tester is and he said its somewhat accurate, usually 2 or 3 numbers off (on the % and the bmi).
so i was wondering - does these scores seem reasonable or should i seek out another method? if another method, what?
Seems dubious, kimpossible.. 7% BF is well below 'necessary BF' levels, even for professional female atheletes.
Ever see those ripped female bodybuilders who take veterinary-grade drugs and diuretics to cut up for competition, so lean that you can see the sinews in their faces? That's what 10% BF looks like. I think you'd have to be a full time athelete, bodybuilder, or undernourished (like, under 100 pounds) to be 12% or less.
If you're super duper lean, then chances are you're probably about 16-18% BF.
For comparison, I'm 5'3", 121, and I'm supposedly 17% according to my basic bathroom BF (electrical impedance) scale. I hit the gym pretty hard enough for definition, but I'm not ripped or anything.
BF measuring devices are notoriously innacurate -- all of them. There's some great reading out there about it!
I just use the ol' bathroom scale and average the numbers over a few days --they vary with hydration, digestion, etc.. I don't take it too seriously.
You can look into caliper tests administered by very experienced sports-medicine practitioners, or water displacement tests that may exist at a college or upscale club.
When donethe correct way at the doctor with callapers (sp?) it was much higher.
Thanks again, guys! :)
sorry if that's t-m-i, lol
Like Duck said, if you weigh 120 lbs and are 5'4", your bmi is 20.6. Since bmi is obtained by plugging your weight and height into a formula, I would not trust a machine which claims to "read" it electronically. Also, unless you are a professional body builder, getting ready for a competition, I would doubt that you have 7% body fat. (these are good things, a bmi of 17 is quite underweight, and your body needs fat to work!) the link below is to a page with a chart showing how much body fat one needs according to gender.