Here's the equation:
for men %BF = 20.94878 + (age x 0.1166) - (height x 0.11666) + (sum4 x 0.42696) - (sum4˛ x 0.00159)
for women %BF = 22.18945 + (age x 0.06368) + (BMI x 0.60404) - (height x 0.14520) + (sum4 x 0.30919) - (sum4˛ x 0.00099562)
It would be nice if the inch/cm (for height) and pound/kg (for weight) conversion option could be maintained. Like wise for the female/male option.
An import part of the calculation are the rotating skin fold measurements. The same skin fold site should be measured at least twice. If both are within 2 mm the average is calculated, if not a third time should be measured and the two closest values are averaged.
That's why there are 3 input slots (and a 4th with average) for each skf site.
The measured skf sites are triceps, subscapular, supriliac and midthigh (sum4).
I've attached 3 files: html, a global js and the actual js
It is not for a business. I'd want to test/extend its validity with a specific group of people and would be just as happy if it was available on an excel sheet. Any volunteers interested are more than welcome. If necessary i'll ask written permission of Dan Peterson, the friend who wrote the reference script. He's at the moment too occupied to do it himself.
The equations were tested on a limited research group of caucasian men and women between the age of 18 - 55.
If not possible i'll look elsewhere ... thanks for your time.
i've asked how much it would cost on average and suggested where or how i could learn scripting, enough said. There's no need to elaborate on previous assumptions that i wasn't prepared to pay ok?
How much would that cost on average?
That depends on what part of the world you are in and what the going rate is for website development in your area. This is a global website and we could be 180 meridians of longitude apart. It also depends on whether you go to an established medium to large website development company (with larger overheads) or to a one-man-band like myself with virtually no overheads that does everything - well almost everything .