Low Carb Friends

Low Carb Friends (http://www.lowcarbfriends.com/bbs/)
-   JUDDD (http://www.lowcarbfriends.com/bbs/juddd/)
-   -   Body Fat (http://www.lowcarbfriends.com/bbs/juddd/810778-body-fat.html)

Librarygirl 08-26-2013 04:49 PM

Body Fat
 
According to the Navy BF calculator, my BF is 38.27%.:eek: 107 lbs of LBM, ad 66 lbs of fat.:annoyed: I hate to think what it was when I started lol. I'm also still in the obese category. These calculations were based on measurements of my waist, hip and neck.

I'm curious about my JB's. Have you done these calculations?

KeirasMom 08-26-2013 04:55 PM

I did mine recently and posted it somewhere, but can't remember now. I think it was in the 28% range. :(

Ntombi 08-26-2013 04:56 PM

I just want to remind you that all of the online calculators give a very rough estimate. I just used the Navy criteria, and it was waaaaay off for me. It put me at 16% higher body fat than I actual have.

Librarygirl 08-26-2013 05:10 PM

I'm actually not terribly surprised. I know I have about 40 lbs to go to get into the category of "normal" weight for my height and frame. Hopefully, my bf will be much better by then. I have lost very slowly over nearly a year's time (33 lbs), so I hope that helps too. Something positive might come out of this turtle stuff. :D

jacquelinejolie 08-26-2013 06:56 PM

Quote:

Originally Posted by Librarygirl (Post 16575930)
I'm actually not terribly surprised. I know I have about 40 lbs to go to get into the category of "normal" weight for my height and frame. Hopefully, my bf will be much better by then. I have lost very slowly over nearly a year's time (33 lbs), so I hope that helps too. Something positive might come out of this turtle stuff. :D

Originally I read bf as "boyfriend". Hmm. Hopefully Cindy's boyfriend will be better when she's normal? :lol: Not that we don't hope for that too sometimes...

107 # LBM is pretty good for someone of your height not doing any training (assuming you haven't?)

Leigh Peele's site (post is "body fat pictures and percentages") has photos of people at various BF percentages. There's a fitness model at 15% and a fashion model at 15%. They look completely different and YMMV on who you think looks better (sort of like would you rather have Nancy Reagan's petite figure or Michelle Obama's arms). They say that when you get below 15%, you lose your TOM. That happened to me 20 years ago when I got down to 115 and looked more like the fashion model (with more junk in the trunk). I just never thought about things like muscle at all back then.

Tom Venuto says this on the navy calculator:
"Research has suggested that hip circumference is a good predictor of total body fat in women. However, after 17 years of use and data collection, it was noted that body fat prediction accuracy using the Navy formula was slightly better for men than for women. One drawback that you should be aware of is that hip measurement does not account for bone girth. Using circumference of hips will overestimate body fat in women with wide bone structure in the hips. However, once a baseline is established, the hip circumference is a good way to measure changes in body fatness with repeated measurements over time (If hip measurement is going down, then body fat is going down)."

I have child bearing hips (to put it kindly) and am very hourglass (not so much in the chest area though) and get more and more hourglass the less I weigh. I don't think that this kind of measurement calculator measures well on far from the norm body shapes. It tests me higher than my calipers or my scale.

Having said all that, I think it's best to just take a measurement as it is (and the navy is as good as any) and - if you need to know because you're training or are concerned about losing muscle - then just track that measurement over time. But really, if you're eating enough protein, you're probably not losing LBM. If you have a lot of loose skin and haven't lost large (100+ pounds) amounts of weight, you have probably lost a lot of LBM. Although that can be luck of the genetic skin draw too. And where you put your weight on.

I wonder though. A lot of the Biggest Loser contestants don't seem to have as much loose skin as one would expect given how much weight they lose and how fast?

Ntombi 08-26-2013 07:08 PM

I too have an hourglass shape and will always have a bubble butt, so that may account for how far off it is for me. But seriously, it says that I have 55 fewer pounds of LBM than I actually do. That's significant.

Carly 08-26-2013 07:23 PM

Mine say 31% body fat. 38 pounds fat 86 pounds LBM. I have no clue if that is accurate or not.

Librarygirl 08-27-2013 05:39 AM

I have an hour glass shape as well. I have wide(ish) hips and a narrow(ish) waist. I have lost 6 inches in both places. I don't know about my neck because I haven't been measuring it, but I do know I couldn't wear my 16" necklace before I lost, but am able to wear it now. I think it's significant that there's 10 in difference between my waist and hips, and the 10 inches have stayed the same while losing...losing at the same rate (was 39, 49-now 33, 43). I thought my waist had gone down to 32, but it's 33, neck 13.

ETA: I put my weight at 174, which it isn't quite. The figures it gave me had decimal points, but I didn't post that part.

PassionateFire 08-27-2013 07:20 AM

I'm currently sitting at 34% - 125 lbs LBM and 67 fat. Measurements were 41/33/42 on August 7th but I've gone down a pants size since then.

ETA: my body fat/weight is measured weekly at the gym but the numbers are pretty close to the online calculators.

Goner 08-27-2013 07:22 AM

Interesting... I have a Tanita scale that can measure body fat - I know it's not entirely accurate, but I can watch trends. I haven't used it lately - perhaps I'll check it. My body type is long and lean - waist only a few inches smaller than hips, no butt. :dunno:

I'm not finding a lot of loose skin per se - except for my upper arms, but I am concerned with toning up some spots. Now to find the inspiration to start exercising. :confused:

elphie124 08-27-2013 07:26 AM

I don't trust those calculators but I am super curious about my body fat. I'm guessing it's high, because like many of you, I am an hourglass. I carry a lot of flab in my hips, thighs and even calves. Stomach too. Ugh.

Librarygirl 08-27-2013 09:22 AM

Quote:

Originally Posted by PassionateFire (Post 16576603)
I'm currently sitting at 34% - 125 lbs LBM and 67 fat. Measurements were 41/33/42 on August 7th but I've gone down a pants size since then.

ETA: my body fat/weight is measured weekly at the gym but the numbers are pretty close to the online calculators.

What is your height? Your measurements are about the same as mine. I'm guessing you're taller? Did you do the measurements on the site, or get it tested in RL? Sorry if I'm being too nosy.:o

Sirtain 08-27-2013 09:34 AM

That hip information makes me feel better. I don't remember what my 'Navy' percentage was (somewhere is the 40s) but it was so high that I was appalled, and tried to forget it as quickly as possible. Now I can blame my hips(child-bearing indeed)!

PassionateFire 08-27-2013 09:53 AM

Quote:

Originally Posted by Librarygirl (Post 16576843)
What is your height? Your measurements are about the same as mine. I'm guessing you're taller? Did you do the measurements on the site, or get it tested in RL? Sorry if I'm being too nosy.:o

I'm 5'4", I am tested every week at the gym but the numbers are very close to the average of the online calculators. I haven't done my measurements though since the beginning of August & am guessing that since I'm in smaller jeans my hips are an inch or 2 smaller (thank you squats) :)

Kissa 08-27-2013 10:02 AM

I won't play... I know there is way too much fat still there even when the scales look okay, which they don't after my break in Germany! All I need is a mirror unfortunately.

Librarygirl 08-27-2013 10:32 AM

Quote:

Originally Posted by PassionateFire (Post 16576898)
I'm 5'4", I am tested every week at the gym but the numbers are very close to the average of the online calculators. I haven't done my measurements though since the beginning of August & am guessing that since I'm in smaller jeans my hips are an inch or 2 smaller (thank you squats) :)

I wonder how you got a lower BF with those measurements and higher body weight using the same calculator?:dunno: Oh, I see! You test by calipers? at the gym. Try the Navy BF calculator and see if you get something similar to mine. ;)

PassionateFire 08-27-2013 10:50 AM

Quote:

Originally Posted by Librarygirl (Post 16576951)
I wonder how you got a lower BF with those measurements and higher body weight using the same calculator?:dunno: Oh, I see! You test by calipers? at the gym. Try the Navy BF calculator and see if you get something similar to mine. ;)

Results:
According to your measurements of a 33 inches waist and height of 5' 4" your body fat percentage is estimated to be 36.36 %.

This is very close, but seems to have my LBM 3 lbs lower than the results I got last week at the gym. I'll take my measurements tonight and recalculate.

ETA - I just tried another 'Navy Calculator' and the results are different again (closer to the gym results):

Body Fat 35 %
Fat Mass 67 lbs
Lean Mass 125 lbs

RebeccaLatham 08-27-2013 02:55 PM

I use the Navy BF Calculator exclusively now. I had a Bod Pod and a DEXA done, and the numbers were so similar to the Navy one that I just use it now. According to the calculator, these are my stats:

February 22, 2009
Neck 13.75"
Waist 35"
Hips 45.5"
Body fat 43.6%
Scale weight 158 pounds (68.9 lbs. fat and 89.1 lbs. lean)

August 25, 2013
Neck 11.75"
Waist 30.625"
Hips 39.625"
Body fat 34.3%
Scale weight 138.2 pounds (47.3 lbs. fat and 90.9 lbs. lean)

So that means that I have lost 21.6 pounds of body fat and gained 1.8 pounds of lean mass.

I had gotten down lower than that in body fat and higher than that in lean mass, but I lost ground and I am trying to get back to where I was.

To reach my goal, I need to:

Lose 2.75" from my waist
Lose 1.875" from my hips
Lose 6.4 pounds of body fat
Gain 4.2 pounds of lean mass

Ntombi 08-28-2013 02:38 AM

Interesting that the Navy calculator is so close to your other BF% results.

I get my BF tested hydrostatically every three or four months, to ensure that I'm maintaining my LBM as I lose excess fat. As of my last test in early July, I had 154 lbs of LBM and a BF% of ~50.5. I've lost about 15 pounds since then, which means the numbers are slightly better, but the Navy calculator put it at 111, and 64%.

BTW, Between February and July, I lost 23.5 pounds of fat, and just under half a pound of muscle.


And as for waist to hips, mine is pretty consistently between a 10-12" difference.

RebeccaLatham 08-28-2013 05:18 AM

Quote:

Originally Posted by Ntombi (Post 16578020)
BTW, Between February and July, I lost 23.5 pounds of fat, and just under half a pound of muscle.

And as for waist to hips, mine is pretty consistently between a 10-12" difference.

Good for you!

Librarygirl 08-28-2013 05:32 AM

Quote:

Originally Posted by PassionateFire (Post 16576971)
Results:
According to your measurements of a 33 inches waist and height of 5' 4" your body fat percentage is estimated to be 36.36 %.

This is very close, but seems to have my LBM 3 lbs lower than the results I got last week at the gym. I'll take my measurements tonight and recalculate.

ETA - I just tried another 'Navy Calculator' and the results are different again (closer to the gym results):

Body Fat 35 %
Fat Mass 67 lbs
Lean Mass 125 lbs

I have the same size waist and hip measurements...33, 43, and same height, but 174 lbs. I don't know why an online calculator would abitrarily assign me a higher BF?:dunno: Granted, it's probably correct because I have not been training or squatting (except in public toliets :D). I tried another Navy calculator and it said 40%, so I just accepted the first one.:laugh:

Fluffy_Bunny 08-28-2013 06:56 AM

I use a body fat scale and when I did the Navy cacls I got extremely close to what the scale tells me....which I won't say what it is because I'm disgusted. I have a loooong way to go. :down:

RebeccaLatham 08-28-2013 12:04 PM

I have a scale, too, and it varies by a few whole percentage points when I get on, get off, and get right back on! It is useless!

Barbo 08-28-2013 02:03 PM

I'm too Skeered
 
It's enough for me to deal with the scale....

Rebecca's way with measurements, while scary too, may be something
I can face eventually. I'll feel better when I see my Christmas goal.

RebeccaLatham 08-28-2013 02:19 PM

Quote:

Originally Posted by Barbo (Post 16578975)
It's enough for me to deal with the scale....

Rebecca's way with measurements, while scary too, may be something
I can face eventually. I'll feel better when I see my Christmas goal.

The scale lies. The measuring tape tells the truth. :heart:

Ntombi 08-28-2013 02:36 PM

Yep!

Carly 08-28-2013 03:06 PM

How tightly or loosely do you hold the measuring tape? I'm serious, I can get hugely different measurements particularly in areas with lots of loose skin. Please advise!

LoCarbGal 08-28-2013 03:15 PM

You're so right Carly! This is one of the reasons I have always hated and dreaded measuring. I never feel like I'm getting the tape in the same place, and I just don't trust the numbers.

That being said, I can definitely see the trend downward in my measurements, so that does serve as motivation when the scale is not cooperating. Matter of fact, I guess I really should measure on 9/1 and see if I'm losing inches since I'm definitely not losing pounds right now.....or even ounces. :mad:

RebeccaLatham 08-28-2013 03:23 PM

I get the tape to be snug, but not tight. In other words, flat against the skin without causing a bulge of skin or fat.

But I do not have excess skin. I'm not sure what to do in that case...

Babsbabs 08-28-2013 03:24 PM

Quote:

Originally Posted by Carly (Post 16579057)
How tightly or loosely do you hold the measuring tape? I'm serious, I can get hugely different measurements particularly in areas with lots of loose skin. Please advise!

I always go for snug when I measure. It seems the easiest to keep consistent for me. Then if I am feeling discouraged I can measure a little tighter and feel like I am making progress:laugh:
I also like my scale that measures BF. I know it isn't the most accurate but it does show me general trends in BF% which I like. I find all of the data keeps me motivated.


All times are GMT -7. The time now is 01:11 PM.