Best Lodging header & logo Best Lodging logo with pictures of a Sandy Beach; Shanghai, China; and Santorini, Greece.search for hotels, motels & suitesbed and breakfast home pageSpecial Deals, Promotions, Packages and Discountschange or modify reservationbest lodging help page
best lodging spacer
best lodging spacer
BestLodging.com Diet Home Page
best lodging spacer

Law 1: Determine your body fat percentage so that we can determine your fat free body mass:

A: Determine Your Body Fat Percentage

We need to determine your body fat percentage so that we can determine your fat free body mass.

The "U.S Army method" (AR 600-9) formulas below are a fairly accurate method to determine body fat percentage. However, it isn't as accurate as hydrostatic testing (water dunk tank), which is the gold standard, or a similar high accuracy method that measures displacement in air rather than water (for example, the "Bod Pod"). It also isn't as accurate as skin fold caliper testing if this testing is done by a professional. So, if you have hydrostatic or a skin fold test result, you should use that amount as your body fat percentage. 

The "U.S. Army method" body fat percentage formula for men is:

Men: % body fat = [86.010 x Log (waist neck)] [70.041 x Log (height)] + 36.76

The "U.S. Army method" body fat percentage formula for women is:

Women: % body fat = [163.205 x Log (waist + hip neck)] [97.684 x Log (height)] 78.387

 If you don't want to do mathematics, you can temporarily (until we get one going) use this online calculator (http://lowcarbdiets.about.com/library/blbodyfatcalculator.htm) to quickly enter in the numbers. 

If you want to do the calculations, you need a "scientific" calculator. Open the "calculator" on your computer and click on "View" and then choose "scientific". You'll see "log" among the functions of the calculator. Do NOT use the "natural logrithim" (LN) key. For men, take the waist measurement at belly button level. For women, take it at the point of least abdominal width. For the neck, take the measurement as low as possible without including any of the trapezius muscles. Round UP to the nearest .50 when measuring the neck for both genders. Round DOWN to the nearest .50 when measuring the abdomen for both genders. Round UP to the nearest .50 when measuring the hips for females. 



EXAMPLE (MEN): (Neck = 18 in; Waist = 39 in; Height = 72 in)

The equation for men is: % body Fat = [86.010 x Log (waist neck)] [70.041 x Log (height)] + 36.76

= [86.010 x Log (39 18)] [70.041 x Log (72)] + 36.76

= [86.010 x Log (39 18)] [70.041 x Log (72)] + 36.76

A. Enter 18.5 and press the LOG key. You should get 1.267 
B. Enter 72 and press the LOG key. You should get 1.857

= [86.010 x 1.322] [70.041 x 1.857] + 36.76

=[113.72]  [130.066] + 36.76 = 15.66 % body fat percentage
 



EXAMPLE (WOMEN)
: (Neck = 14 in; Waist = 30 in; Hip = 40 in; Height = 64 in)

The equation for women is
: % body fat = [163.205 x Log (waist + hip neck)] [97.684 x Log (height)] 78.387

= [163.205 x Log (30 + 40 14)] [97.684 x Log (64)] 78.387

= [163.205 x Log (56)] [97.684 x Log (64)] 78.387 

A. Enter 56 and press the LOG key. You should get 1.748 
B. Enter 64 and press the LOG key. You should get 1.806

= [163.205 x 1.748] [97.684 x 1.806] 78.387

= [285.282] - [176.417] - 78.387 = 30.478 % body fat percentage 

Determining Fat Free Body Mass

best lodging spacer
best lodging spacer
BestLodging.com Diet
Copyright 2008 BestLodging.com. Terms of Service Valid HTML 4.01 Transitional